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| General Hardware Talk about motherboards, CPU, sound cards, RAM, hard drives, physics, and everything else about computer hardware! |
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Apr 13, 2006, 01:13 AM
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#1 | Advertisement (Guests Only)
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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A8R32-MVP BIOS Setup Guideline
Here's where I'm at currently...Prime95 stable for 17 hours. ADVANCED _Jumper Free Configuration _AI Overclocking__________________Manual _CPU Frequency__________________285 _PCIE Frequency_________________100 _FID/VID Change__________________Manual _Processor Frequency Multiple______X10 _Processor Voltage_______________1.550V _DDR Voltage____________________2.90V _VCORE Voltage__________________+200mV _Northbridge Overvolt______________Enabled ___Core Voltage__________________1.4V ___HT Bus Voltage________________1.4V ___PCIE Voltage__________________1.4V _PEG Link Mode___________________Auto _PEG Buffer Length________________Auto _AI Clock SkewA__________________Auto _AI Clock SkewB__________________Auto _CPU Configuration _GART Error Reporting______________Disabled _MTR Mapping____________________Continuous _Cool N Quiet_____________________Disabled _HT Link Speed___________________1 GHz _Memory Configuration _Memory Timing Mode_____________Limit ___Memclock Value_______________166 _MCT Timing Mode________________Manual ___CAS (CL)_____________________2.5 ___TRAS________________________8 ___TRP_________________________3 ___TRCD________________________3 ___TRRD________________________2T ___TRC_________________________7T ___TRFC________________________16T ___TRWT________________________2 _MCT Extra Timing Mode___________Manual ___TREF________________________7.8us ___DDR Input Strobe Skew_________Disabled ___Burst2Opt____________________Disabled _User Configuration Mode__________Manual ___Read Preamble________________5.0ns ___Asyc Latency_________________7.0ns ___CMD-ADDR Timing_____________1T _Bank Interleaving_________________Auto _Burst Length____________________8 Beats _Software Memory Hole____________Disabled _ECC Configuration ___DRAM ECC Enable______________Disabled ___L2 Cache BG Scrub_____________Disabled ___Data Cache BG Scrub___________Disabled _Chipset ___VGA Priority___________________1st PCIE ->2nd PCIE _HT Config ___HT Link Speed_________________1 GHz ___CPU:RD580-NB HT Link Width____16 Bit ___RD580 HT Link Three State_______Disabled ___RD580 HT Drive Strength_________Optimal ___HT Receiver Comp. Ctrl__________Optimal ___RD580 HT PLL Control___________High Speed _PCI-E Configuration ___PCIE GFX1 Link Width___________X16 ___PCIE GFX2 Link Width___________X16 ___P2P Writes Between GFX Ports___Disabled ___10% Extra Current Between GFX__Enabled ___10% Extra Current Between GPP__Enabled ___10% Extra Current Between SB___Enabled ___10% Extra Current Between GFX1_Enabled ___10% Extra Current Between GFX2_Disabled RED marks the changes that I've done since last overclock. (all missing BIOS options/settings are arbitrary.) It didn't really take much to get 2.85GHz outta this 4000+ Claw. Effectively, my memory is running (with the 166 'divider') at 475MHz (that's pretty good for 400MHz PC3200, but I don't think I'll get much more out of them...) So, the math looks like this: (CPU Multiplier * HTT Frequency) / (CPU Multiplier/(Memory Multiplier)) = Memory Frequency (10 X 285 = 2850) / (10 / .83333) = 237.50MHz (475MHz DDR) I was never able to get this memory higher than 460+- in my old A8V Deluxe, so I'm sure that there's not much headroom for more of an oc here...but, I ran the RAM benchmarks from PCMark05, as well as the new Everest Ultimate Edition, and got: 7160 Read 7106 Write 6179 Copy @ 43.8ns (That's close to 1000MB/s of bandwidth higher in each category than my highest on that A8V Deluxe (which was an EXCELLENT board!) Needless to say, this A8R32-MVP is The Stuff Things Are Made Of!!!!! Psychlone --------**REFERENCE**--------------------------------------------------------- Memory Dividers________HT 200 = 1/1_____________1000 = 5x 183 = 9/10____________800 = 4x 166 = 5/6_____________600 = 3x 133 = 2/3_____________400 = 2x 100 = 1/2_____________200 = 1x (CPU Multiplier * HTT Frequency) / (CPU Multiplier/(Memory Multiplier)) = Memory Frequency --------------------------------------------------------------------------------- *Thanks to ristogod for supplying the above info Last edited by Psychlone : Apr 13, 2006 at 10:44 PM. |
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Apr 13, 2006, 04:10 AM
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#2 |
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Take it... and go.
Join Date: Jan 2001
Location:
 Toronto
Posts: 19,477
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Holy... a Clawhammer at 2.85? Pretty nice!
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Attaching the electrodes of knowledge to the nipples of ignorance since 1980. |
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Apr 13, 2006, 10:19 AM
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#4 | |
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Great Rage members RETURN
Join Date: Jan 2002
Location:
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Posts: 8,995
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Quote:
Nice overclock from a pretty nice board. Good job.
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Apr 13, 2006, 04:07 PM
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#5 |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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I would prefer this thread to contain BIOS adjustments that users have made to accomplish overclocks on their A8R32-MVP motherboards, not start 'my board can beat up your board' posts. (no offense intended ristogod, I know we see eye to eye on this) Anyone with an A8R32-MVP is welcome to post their findings here, as well as discuss specific overclocking options/problems, etc. Anyone that does not own an A8R32-MVP, or does not wish to own one, should start their own thread. Thank you in advance for your anticipated cooperation. Psychlone (oh yeah...Intel sucks, AMD rules, ASUS is the best of all motherboard manufacturers, ATI kicks nVidia's butt, and all kinds of other generic flame-fodder...)   Last edited by Psychlone : Apr 13, 2006 at 11:11 PM. |
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Apr 13, 2006, 04:35 PM
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#6 |
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^^
Join Date: Jun 2004
Posts: 756
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My 4200+ won't really run stable over 2700 (lockups) but at the speeds below it's performing pretty awesome. I really like the a8r32, maybe because I directly flashed to bios 0311 when I got it. Pretty impressed with this board so far (speed,stability)  ADVANCED _Jumper Free Configuration _AI Overclocking__________________Manual _CPU Frequency__________________300 _PCIE Frequency_________________100 _FID/VID Change__________________Manual _Processor Frequency Multiple______X9 _Processor Voltage_______________1.400V _DDR Voltage____________________2.90V _VCORE Voltage__________________+100mV _Northbridge Overvolt______________Enabled ___Core Voltage__________________1.4V ___HT Bus Voltage________________1.4V ___PCIE Voltage__________________1.4V _PEG Link Mode___________________Auto _PEG Buffer Length________________Auto _AI Clock SkewA__________________Auto _AI Clock SkewB__________________Auto _CPU Configuration _GART Error Reporting______________Disabled _MTR Mapping____________________Continuous _Cool N Quiet_____________________Disabled _HT Link Speed___________________800 MHz _Memory Configuration _Memory Timing Mode_____________Limit ___Memclock Value_______________166 _MCT Timing Mode________________Manual ___CAS (CL)_____________________2,5 ___TRAS________________________5 ___TRP_________________________3 ___TRCD________________________3 ___TRRD________________________2T ___TRC_________________________7T ___TRFC________________________16T ___TRWT________________________2 _MCT Extra Timing Mode___________Manual ___TREF________________________7.8us ___DDR Input Strobe Skew_________Disabled ___Burst2Opt____________________Disabled _User Configuration Mode__________Manual ___Read Preamble________________5.0ns ___Asyc Latency_________________7.0ns ___CMD-ADDR Timing_____________1T _Bank Interleaving_________________Auto _Burst Length____________________8 Beats _Software Memory Hole____________Disabled _ECC Configuration ___DRAM ECC Enable______________Disabled ___L2 Cache BG Scrub_____________Disabled ___Data Cache BG Scrub___________Disabled _Chipset ___VGA Priority___________________1st PCIE ->2nd PCIE _HT Config ___HT Link Speed_________________800 MHz ___CPU:RD580-NB HT Link Width____auto ___RD580 HT Link Three State_______Disabled ___RD580 HT Drive Strength_________Optimal ___HT Receiver Comp. Ctrl__________Optimal ___RD580 HT PLL Control___________full Speed _PCI-E Configuration ___PCIE GFX1 Link Width___________X16 ___PCIE GFX2 Link Width___________X16 ___P2P Writes Between GFX Ports___Disabled ___10% Extra Current Between GFX__Enabled ___10% Extra Current Between GPP__Enabled ___10% Extra Current Between SB___Enabled ___10% Extra Current Between GFX1_Enabled ___10% Extra Current Between GFX2_Disabled
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Apr 13, 2006, 10:39 PM
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#7 | |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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Quote:
HTT has been shown stable up to 1500MHz, so you shouldn't have any problems leaving it at 1GHz, even with your HT at 300 ( +or- ) Also, this particular board gets better bandwidth with your TRAS at 8, and I've benched it every way possible with my RAM, and indeed, it does increase my bandwidth (not by far, but an increase nonetheless) setting TRAS to 8. If it's unstable with HT at 300 and HTT at 1GHz, you may find stability in changing TREF to a higher value, or the Burst Length to a lower value, or perhaps changing the HT Drive Strength to Default. Aside from that, after doing a little math, I think that HT @ 330, and Multiplier at 8.5, with a 133 divider may get you to 2.8GHz, but you MAY have to loosen your memory latencies. (CPU Multiplier * HTT Frequency) / (CPU Multiplier/(Memory Multiplier)) = Memory Frequency (8.5 X 330 = 2805) / (8.5 / .6666 = 12.75 [13]) = 215MHz (430MHz DDR) Right now, this is how it looks: (9 X 300 = 2700) / (9 / .83333 = 10.8 [11]) = 245.45MHz (490.90MHz DDR) - which is probably too high for your RAM The best way to adjust latencies is to boot into BIOS, change ALL memory latencies to a value much higher than SPD, then upon reboot, change just 1 at a time, dropping the value of that 1 latency 1 value at a time, reboot, run Prime95 to see if it's stable (I did it for just a couple minutes each time) and then go back in and drop it again, until it becomes unstable in Prime95...going back into BIOS and raising that particular value 1-2 steps, then moving onto the next value with the same procedure, but leaving TRAS at 8. You'll be surprised how much all this effort will pay off in an increased overclock, but better bandwidth throughput as well. It really does take a long time to go through with all this, but if you're a die-hard overclocker like myself, you'll get as much enjoyment out of tweaking numbers out of your system, as playing games!!! I've run PI to a million digits on Systweaks SysTool in 10.002 seconds...that's BLAZING fast, and it's all because of the overclock on my system (compare to 13.042 seconds not overclocked!) Good luck! Psychlone Last edited by Psychlone : Apr 13, 2006 at 11:13 PM. |
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Apr 14, 2006, 04:50 AM
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#8 | |
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^^
Join Date: Jun 2004
Posts: 756
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Quote:
I will try these settings and report back. Alltough I already tried 8 and 8.5 multi's with 330 HTT (and very loose ram timings). Also tested this cpu on a different mobo/chipset and ALWAYS it will give random lockups if set higher than 2720-2730. But anyways I'll try and report back
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Apr 14, 2006, 06:07 AM
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#9 |
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^^
Join Date: Jun 2004
Posts: 756
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Ok the HT Link Speed setting to 1GHZ results in NO post'ing at any speed above 300. so I'll leave that to 800Mhz for now. Setting HT above 325 results in crashes in Windows (boots fine up to 335 with a 8 multi tho). 8,5*325(=2762) is perfectly stable. I tried setting the TRAS to 8 but the bandwith benchmark in Sandra gives me slightly lower results compared to 5 (isn't lower supposed to be faster anyway?) I also lowered the RAS Precharge form 3 to 2. Slightly better result in Sandra) I'm not sure if I'm going to settle with these settings because with the 9*300 I could limit the memory to 166 instead of 133 now (no post when 166). I also get around 6400-6500 in the bandwidth benchmark and it's completely stable at 245Mhz. The question now is what is faster overal: the increased CPU speed or more MEM speed?? Anyways here's a screenie of the current settings (tested with Prime and some gaming (Oblivion and UT2004). I leave it running for a while to see if it's 100% stable. 
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Apr 20, 2006, 03:12 PM
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#10 |
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Radeon HD 4350
Join Date: Apr 2006
Posts: 19
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Hey guys, glad to jump in. I just got my A8R32 yesterday, and after some initial difficulties, I figured I'd report what I'm getting and see if you have any suggestions for bumping my processor speed up: 3800+ X2 (Manchester) A8R32-MVP Deluxe w/404 BIOS 1gig PC3200 (2x512) Sapphire Radeon X1800XT 512meg 2xWD Cavier 320gig SATA drives in RAID 0 SB X-Fi Platinum Antec TruePower 2.0 550W Lite-On DVD burner Now, the only real limiting factor that I can see is my mismatched ram (one stick Kingston, one Crucial). ATM the AMD is @.245ghz with the ram at 222 (444DDR) and HT@270 (for 1350 w/5x multiplier). I dropped the proc multiplier from 9 to 8.5 and managed to get Windows to boot over 2.6ghz, but it was pretty buggy (SuperPI wouldn't finish, artifacts, etc), so I'm guessing my top end is around 2.6 right now (only have the stock HSF for now  ). That was also with HT @ 800mhz. Here are my settings (from memory, lots of reboots  ):ADVANCED _Jumper Free Configuration _AI Overclocking__________________Manual _CPU Frequency__________________270 _PCIE Frequency_________________100 _FID/VID Change__________________Manual _Processor Frequency Multiple______X9 _Processor Voltage_______________1.400V _DDR Voltage____________________2.85V _VCORE Voltage__________________+100mV _Northbridge Overvolt______________Enabled ___Core Voltage__________________1.4V ___HT Bus Voltage________________1.4V ___PCIE Voltage__________________1.4V _PEG Link Mode___________________Auto _PEG Buffer Length________________Auto _AI Clock SkewA__________________Auto _AI Clock SkewB__________________Auto _CPU Configuration _GART Error Reporting______________Disabled _MTR Mapping____________________Continuous _Cool N Quiet_____________________Disabled _HT Link Speed___________________1000 MHz _Memory Configuration _Memory Timing Mode_____________Limit ___Memclock Value_______________166 _MCT Timing Mode________________Manual ___CAS (CL)_____________________2.5 ___TRAS________________________8 ___TRP_________________________3 ___TRCD________________________3 ___TRRD________________________2T ___TRC_________________________8T ___TRFC________________________16T ___TRWT________________________2 _MCT Extra Timing Mode___________Manual ___TREF________________________7.8us ___DDR Input Strobe Skew_________Disabled ___Burst2Opt____________________Enabled _User Configuration Mode__________Manual ___Read Preamble________________5.0ns ___Asyc Latency_________________7.0ns ___CMD-ADDR Timing_____________1T _Bank Interleaving_________________Auto _Burst Length____________________8 Beats _Software Memory Hole____________Disabled _ECC Configuration ___DRAM ECC Enable______________Disabled ___L2 Cache BG Scrub_____________Disabled ___Data Cache BG Scrub___________Disabled _Chipset ___VGA Priority___________________1st PCIE ->2nd PCIE _HT Config ___HT Link Speed_________________1000 MHz ___CPU:RD580-NB HT Link Width____auto ___RD580 HT Link Three State_______Disabled ___RD580 HT Drive Strength_________Optimal ___HT Receiver Comp. Ctrl__________Optimal ___RD580 HT PLL Control___________full Speed _PCI-E Configuration ___PCIE GFX1 Link Width___________X16 ___PCIE GFX2 Link Width___________X16 ___P2P Writes Between GFX Ports___Disabled ___10% Extra Current Between GFX__Enabled ___10% Extra Current Between GPP__Enabled ___10% Extra Current Between SB___Enabled ___10% Extra Current Between GFX1_Enabled ___10% Extra Current Between GFX2_Disabled What's more, I cannot for the life of me get this board to POST with a 10X multiplier. The best I can get is like 205mhz FSB. Anyway, I'm very happy with my memory performace (~6000MBs in Sandra), but I'd like to squeeze at least another 150mhz out of this Manchester if possible. I can't seem to get any more than 273mhz out of this ram with the above settings. Any ideas? BTW, I nominate this thread for sticky status! Thanks guys -Russ |
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Apr 20, 2006, 03:33 PM
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#11 |
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Radeon HD 4350
Join Date: Apr 2006
Posts: 19
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Ok, I'm retarded and didn't see the 9.5 multiplier :P Anyway, I left FSB @ 272 and upped the clock multiplier, and now I'm running @ 2584mhz. I probably won't go any higher until I can get a new HSF (or the new OCZ phase-change, if it's ever released...), having Prime95 push your core temp up to 57C is a little scary :P -Russ |
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Apr 21, 2006, 05:22 PM
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#12 |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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First, thanks for the STICKY nomination (It's been a STICKY at Driverheaven for a week or so!) So, lets do the math: (CPU Multiplier * HTT Frequency) / (CPU Multiplier/(Memory Multiplier)) = Memory Frequency (9.5 X 270 = 2565) / (9.5 / .833333 = 11.40 [12]) = 213.75MHz (427.5MHz DDR) When you get better cooling, you could try upping your DDRVoltage to 2.9, and VCore to +200mV (which is REALLY about .12V) You could also slack the TRWT to 3 and Asyc Latency to 8.0ns(maybe higher?) or, adjust Burst Length to 4 Beats...and see if that helps. (just do 1 at a time, so you know what worked, and what didn't!) You definately should download Systool so that you can make these changes in Windows instead of rebooting endlessly for 2-3 settings...but remember what you've done (ONLY adjust 1 setting at a time!) Once inside Systool, your Multiplier can be adjusted on the AMD64 Cool n Quiet screen, the FSB (or HTT as it's now called) is on the CPU Overclocking screen (Hit READ before doing ANYTHING on this page, then tick the box labelled FSB Limit, and set it to 280 or something similar - you can change it to whatever/whenever, but DO NOT run the testing without it capped!!!) AMD64 Memory Timings holds the latencies that you'll need to change - remember to adjust just 1 at a time, then run the Stability Test on the CPU Overclocking screen, or run PI to a million digits using the Benchmarking>CPU screen, or alternatively, using SuperPI and running to 1 million digits (1Million seems to be a good quick indicator of system stability, but should NEVER be used alone to determine if your system is 100% stable...use Prime95, Memtest86, AND SuperPI/Systool PI at 32Million for better stability tests!) Also, with Systool, you can adjust anything to your hearts desire (1 setting at a time!) and determine the BEST settings to set in your BIOS. In Systool, on the CPU Overclocking screen, tick the boxes next to Direction: UP and Stop on Error, and then you can hit START FIND MAX...it will automatically up the FSB until it gets unstable. This is a great tool to determine if what you've done can clock higher! Hope this helps you out! (Remember, getting better cooling is PARAMOUNT to getting higher overclocks!) Psychlone Last edited by Psychlone : Apr 21, 2006 at 05:31 PM. |
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Apr 22, 2006, 10:29 AM
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#13 |
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Radeon HD 4350
Join Date: Apr 2006
Posts: 19
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Well, I ultimately ended up dropping back to a 9x multiplier, since Windows was doing some questionable stuff over 2.5ghz, though Prime95 and SuperPI seemed to have no issues. I'll give Systool a try and see if I can do better with that (I've always been wary of anything Windows based that messes with my BIOS :P). Anyway, it's not a huge performance drop (which is partially remedied by the increased DDR bandwidth), so I'm not too worried. I can still play Oblivion with everything on -Russ |
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Apr 22, 2006, 04:05 PM
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#14 | |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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Quote:
And, using Prime95 for many hours is the ONLY way I'd trust an overclock...not necessarily what XP tells you. (What kind of 'questionable stuff' you talking about?) - If you're getting Windows errors (missing ntldr, autoexec, system, etc.) then you're not stable at that speed...Prime95 will tell you that in seconds, minutes, or sometimes hours, which is why you need to run it for a 24 hour period. Psychlone |
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Apr 23, 2006, 11:37 PM
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#15 |
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Radeon HD 4350
Join Date: Apr 2006
Posts: 19
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Well, just for fun I tried lowering my cpu and ram multipliers just to see how high I could get the HTT @ 1Ghz. Unfortunately, even with my RAM set at 133 and cpu multi @ 7x, I couldn't get the system to post over 280HTT. Am I doing something wrong, considering the whole selling point of this board is being able to at least hit 300mhz HTT? I was running the above ram timings, just with a 133 divider (considering I'm stable right now @ 460mhz DDR with 269HTT, it shouldn't be a ram problem). In case someone asks, I'm running the 404 bios. Thanks -Russ |
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Apr 24, 2006, 05:32 AM
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#16 | |
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gone...
Join Date: Jun 2002
Location:
 Ostrava
Posts: 2,556
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Quote:
Too bad mobo is missing 150 divider so i must to use A64info to set it (jump from 192Mhz to 225Mhz for me)
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ASUS Rampage II GENE + Intel i7-920 @ 3.8 GHz + Noctua NH-U12P SE1366 6 GB OCZ Intel Extreme XMP 1600MHz / Palit Geforce 295GTX 1792MB watercooled 1x30GB SSD OCZ Vertex Turbo (system) / 2x30GB SSD OCZ Vertex RAID 0 (games) 24" LCD DELL G2410 / Power supply Nexus RX-8500 850W / Asus OC STATION |
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Apr 25, 2006, 07:12 PM
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#17 |
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Radeon HD 4350
Join Date: Apr 2006
Posts: 19
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Well, I dropped the HT multiplier down to 4x and managed to get my HTT to 281 before I hit my CPU's ceiling. This gives me a clock of 2.67ghz, with my ram running @ 480mhz DDR (with the 183 divider). I had to overvolt my 3800+ by 100mV, but I also installed a new HSF with a really loud, and really fast fan I consider a 670mhz overclock pretty good for a processer that cost me less than 300 bucks (especially when you look at how much a dual-core FX costs). All I can say is that this is one sick, sick chipset. I didn't think a mismatched pair of value DDR dimms could overclock so much either, but I'm getting ~6500MB/s in Sandra, so that makes me one happy panda Too bad you can't get the OCZ PC4800 Elite's anymore, I'd like to see how high I could get 'em on this board -Russ |
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Apr 26, 2006, 03:32 AM
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#18 |
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Radeon HD 4550
Join Date: Mar 2006
Posts: 35
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Maybe you pros can help me out. I have this board and I am confused on some bios options. Peg link Mode is for dual video cards correct? If so I have that turned on to fast. I have two video cards in crossfire. Also I have peg buffer mode set to short. I have no clue what this is and any feedback would be helpful! |
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Apr 27, 2006, 05:23 PM
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#19 |
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Radeon HD 4830
Join Date: May 2003
Posts: 175
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Stupid question, but with a dual core processor, you need a version of superPI running for each core, don't you? |
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Apr 27, 2006, 06:52 PM
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#20 | |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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Quote:
Systool supports running multiple tests at the same time in the same GUI. - Use that too! Psychlone |
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May 3, 2006, 02:05 PM
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#21 |
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Radeon HD 4350
Join Date: Mar 2002
Location:
Toronto, Canada
Posts: 17
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Nice results, I can't wait to get my board
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May 3, 2006, 06:11 PM
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#22 | |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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Quote:
I've found that this board is one POTENT overclocker! (How many other people have oc'd their Clawhammer 4000+ to 2.85GHz on air? - That's a feat in itself!) I have new XMS PC3200 2,3,3,6 coming, and I'm going to give it a run...I'll post results. I chose the PC3200 for it's tighter timings. I'm a gamer, and done my research on tight latencies vs. high MHz, and tighter latencies wins hands down...at least for my application. - Right now I'm getting over 7100MB/s on Reads, over 7000MB/s on Writes, and at 43.8ns with my current PC3200!!! (that's a MAJOR increase of almost 1000MB/s with the same RAM on my older A8V Deluxe Rev. 2.0) Psychlone |
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May 4, 2006, 03:48 PM
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#23 |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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    Not bad, considering all I did was replace my 2 512MB sticks with 2 1GB sticks. Not much of an increase though...a hundred points or so. I think that I'll play with the timings on this a little and try some more when I get time...I have a feeling that this 2X1GB XMS 2.5,3,3,6 can run much tighter latencies. (I also noticed that it defaulted to 3.0 CAS, which isn't what the spex said for this RAM...and, it was a little unstable at the speed that my 2X512MB sticks were comfortable at...hmmm...I think I'll adjust HT to 4X and play more.) Psychlone Last edited by Psychlone : May 4, 2006 at 03:52 PM. |
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May 6, 2006, 08:59 PM
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#24 |
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Newbie
Join Date: May 2006
Posts: 3
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Hi, I am seeking advice on how to successfully OC my PC via the Asus A8R32-MVP Deluxe bios for GTR. I am relatively new to the OC process and so far the following OC has proven stable as a rock in dual prime and the latest games including Oblivion. Though I can only run GTR stable by restoring default BIOS settings. It is well documented that GTR is sensitive to dynamic OC’ing and PCI speed should be locked @ 33mhz. I am not sure which of the following settings are changing dynamically. Does anyone have suggestions re. locking PCI speed @ 33mhz and possible stability improvements? Note: I restored default settings and only increased my CPU multi from 13(2.6Ghz) to 14(2.8Ghz) and CPU voltage from AUTO to 1.375v to check if my memory was the only issue. GTR was still unstable. System AMD FX-60 w/Zalman 9500 cooler ASUS A8R32-MVP Deluxe (bios v0404) Crucial Ballistix Tracer PC4000 2GB Radeon 1900XTX (no OC) Audigy 2 ZS Soundcard Antec Neo HE 550 PSU ADVANCED _Jumper Free Configuration _AI Overclocking__________________Manual _CPU Frequency__________________260 _PCIE Frequency_________________100 _FID/VID Change__________________Manual _Processor Frequency Multiple______X11 _Processor Voltage_______________1.375V _DDR Voltage____________________2.65V _VCORE Voltage__________________Auto _Northbridge Overvolt______________Auto _Southbridge Overvolt______________Auto _PEG Link Mode___________________Disabled _PEG Buffer Length________________Auto _AI Clock SkewA__________________Auto _AI Clock SkewB__________________Auto _CPU Configuration _GART Error Reporting______________Disabled _MTR Mapping____________________Continuous _Cool N Quiet_____________________Disabled _HT Link Speed___________________600 Hz _Memory Configuration _Memory Timing Mode_____________Limit ___Memclock Value_______________200 _MCT Timing Mode________________Manual ___CAS (CL)_____________________3 ___TRAS________________________8 ___TRP_________________________3 ___TRCD________________________3 ___TRRD________________________2T ___TRC_________________________11T ___TRFC________________________14T ___TRWT________________________4 _MCT Extra Timing Mode___________Manual ___TREF________________________7.8us ___DDR Input Strobe Skew_________Disabled ___Burst2Opt____________________Disabled _User Configuration Mode__________Manual ___Read Preamble________________5.5ns ___Asyc Latency_________________7.0ns ___CMD-ADDR Timing_____________1T _Bank Interleaving_________________Auto _Burst Length____________________4 Beats _Software Memory Hole____________Disabled _ECC Configuration __DRAM ECC Enable______________Disabled ___L2 Cache BG Scrub_____________Disabled ___Data Cache BG Scrub___________Disabled _Chipset ___VGA Priority___________________1st PCIE ->2nd PCIE _HT Config ___HT Link Speed_________________600 Hz ___CPU:RD580-NB HT Link Width____Auto ___RD580 HT Link Three State_______Disabled ___RD580 HT Drive Strength_________Auto ___HT Receiver Comp. Ctrl__________Auto ___RD580 HT PLL Control___________High speed _PCI-E Configuration ___PCIE GFX1 Link Width___________X16 ___PCIE GFX2 Link Width___________X16 ___P2P Writes Between GFX Ports___Enabled ___10% Extra Current Between GFX__Enabled ___10% Extra Current Between GPP__Enabled ___10% Extra Current Between SB___Enabled ___10% Extra Current Between GFX1_Enabled |
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May 7, 2006, 09:00 PM
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#25 |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
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Posts: 238
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**READ THIS ENTIRE POST BEFORE TRYING ANYTHING!!!** First of all, your overclock is only stable at 3X HT? I'd give it some more juice via Overvolt (200mV = .17V roughly, in reality / 100mV = .12V roughly) so you're Voltage would be up to 1.545V (if you use the 200mV option) Also, giving the the buses a little more juice may help...I have mine set to 1.5, but I'm getting more of an oc out of this Claw than most get...maybe try 1.4 on Core, HT, and PCIE (under Northbridge Overvolt) It's entirely possible that the game is looking directly at your memory overclock. Lets do some math: (CPU Multiplier * HTT Frequency) / (CPU Multiplier/(Memory Multiplier)) = Memory Frequency (11 X 260 = 2860) / (11 / [1] = 11 ) = 260.0MHz (520.0MHz DDR) Here, your Memory is out of spec with 1:1, and could be that the game is looking for this. (from a REVIEW those Ballistix maxed out at 502MHz at 2.5,3,3,8 - much tighter timings than you've got running - so something else is amiss...) Let's try something: (first of all, set your HT to 1GHz(!) - if it proves unstable after this, drop it back to 800MHz, and we'll work from there) --------**REFERENCE**--------------------------------------------------------- Memory Dividers________HT 200 = 1/1_____________1000 = 5x 183 = 9/10____________800 = 4x 166 = 5/6_____________600 = 3x 133 = 2/3_____________400 = 2x 100 = 1/2_____________200 = 1x (CPU Multiplier * HTT Frequency) / (CPU Multiplier/(Memory Multiplier)) = Memory Frequency --------------------------------------------------------------------------------- *Thanks to ristogod for supplying the **REFERENCE** info (10 X 280 = 2800) / (10 / .9 = 11.111111 [12] ) = 233.3333MHz (466.6666MHz DDR) The above calculations are with your HT set to 1GHz (5X), the multiplier dropped down to 10X, and HTT at 280. If it's not stable there, set the HT down to 800MHz (4X) and if it's STILL not stable, set your Asyc Latency to 8ns (+) (your TRWT is already higher than I would have guessed, so not much room there.) - This is assuming that you've used at least the 100mV Overvolt option along with the busses lightly overvolted under Northbridge. (9.5 X 295 = 2802.5) / (9.5 / .9 = 10.5555 [11] ) = 254.77272MHz (509.54544MHz DDR) This puts you (with all the above settings, only your multi/HTT changed) just over what that review got on their Ballistix test @ 509.5MHZ DDR. We could even go further and drop your multi another setp, and set your RAM divider at 5/6 (.83333) to reach: (9 X 311 = 2800) / (9 / .83333 = 10.8 [11] ) = 254.54545MHz (509.0909MHz DDR) Or a shorter divider: (9 X 311 = 2800) / (9 / .66666 = 13.5 [14] ) = 200.0MHz (400.0MHz DDR) There you'd be right where PC3200 is, except your CPU is ripping out 2.8GHz, and your HTT is 'up there'! Not sure which way you want to go, but playing with the calculations in this post, you can see where you'd be BEFORE you try it, just to see how high your RAM is going to be. Also, I'd suggest downloading Systool to make your overclocking experience a little easier. Dont be afraid of all the options, most settings wont work on a chipset/cpu/RAM that's different than what it sees (it uses YOUR ICS registers, and disables say, Intel features, etc.) You can adjust your RAM timings, HTT speeds, multipliers, etc. all through Windows in REAL TIME! - just remember to set 'STOP ON ERROR' on the CPU OVERCLOCKING tab...and set a MAX FSB so that it won't go higher than what your math tells you. Systool is a GREAT utility that can help you tighten your timings on your RAM to their lowest possible stable latencies, but I still absolutely utilize the 'old' method of booting into BIOS, setting ALL your RAM latencies a couple notches higher, then picking [1 at a time!] and dropping it 1 step and rebooting...until it wont POST, then set it up a notch, and go for the next latency. *My little disclaimer* In NO WAY will I be held liable for damaged parts. Overclocking is considered a bonus...NOT a guarantee. What works for one won't necessarily work for another. Keep in mind that with higher voltages, the risk of damaging critical components is much higher than at their recommended voltages, and it also creates HEAT. Adequate cooling is PARAMOUNT to overclocking...not just your CPU, but your case!! Don't even attempt to poke around in extreme overclocks with stock cooling, unless you're just rich. * * Good luck in your efforts, and post back with your results. Psychlone Last edited by Psychlone : May 7, 2006 at 09:05 PM. |
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May 11, 2006, 01:36 AM
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#26 |
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Newbie
Join Date: May 2006
Posts: 3
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Thanks for info Psychlone. I tried some of your suggestions over the last couple of days. I made many changes but did not keep detailed records for this post. I will back track over tests again and re-post soon for your analysis. Basically stability under OC started to improve once I put a divider on the memory and OC'ed the Northbridge. Initially the following setting was stable online for 3 hours(usually I pickup instability within the first 5 minutes). After tweaking further and returning to this setting I encountered stability problems again. The only cure was to restore default bios settings. Note during testing I made all suggested tweaks except I didn't exceed 1.4v on the CPU. I want to run conservative CPU voltage considering the replacement cost. My memory will run 200Mhz, 2-2-2-5 @ 2.85v under all tests and application except GTR. For what ever reason GTR is very sensitive OC’ing. (11 X 255 = 2805) / (11 / .83333 = 13.2 [14] ) = 200.357MHz (400.7MHz DDR HT 800Hz Memory 2.5-2-2-5 @ 2.85v Justin |
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May 11, 2006, 06:07 PM
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#27 |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
Searching for the airspeed velocity of an unladen swallow...
Posts: 238
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Be sure to post ALL your computers spex...I'm helpless without some info about what you have, and what you've done. Remember, when overclocking, it's best to do ONE thing at a time...reboot, see if it's stable, then step forward to another setting. This way, if you become unstable, you KNOW which setting you have to back off a notch.  Psychlone |
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Jun 3, 2006, 08:30 AM
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#28 |
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Newbie
Join Date: Jun 2006
Location:
buffalo, NY
Posts: 2
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glad to be here. first time caller long time listener. this is the only place ive found so far with fellow owners/operators of this motherboard. i'm having trouble seeing stability over 300 FSB, and I know it can go WAY over 300. for those who have seen the same thing and solved it. what adjustment was making the most difference? im booting up at 3x for the HT currently on the 183 div. my mem is stable up to 277 (DDR554) so mathematically on the 183 i can do 307 and on the 166 i can do around 333, but when testing up in that range on the 8x multi, it wont do well at 300 oe more. just looking for the most prevalent stability adjustment when it comes to making the FSB stable. again everythings stable till i get near or over 300. even the mem itself. its the FSB im having trouble keeping solid. ill post settings soon if requested. id like just a quick adjustment to check first then ill post the specs.
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asus a8r32-mvp * opteron 165@2700mhz (300x9)* 2x1gb g.skill HZ * x1900xt * sb x-fi plat. * enermax 535 * swiftech mcp655 pump, apogee waterblock, on water* |
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Jun 4, 2006, 08:18 AM
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#29 |
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AMD Overclocking Guru
Join Date: Apr 2003
Location:
Searching for the airspeed velocity of an unladen swallow...
Posts: 238
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I've had this beast POST at 400HTT with REAL loose RAM timings...but I was only testing...I would never run my equipment that hot! The main factors, aside from your HT multi, will be your ASYC Latency, TREF, and Burst Length. It's been a while since I've cranked mine up past 300HTT, (no need now that I proved to myself that I could...) but if I remember correctly, those were the main factors in getting up there. I actually have all those settings written down on paper somewhere, I'll see if I can find them. I do remember starting with VERY relaxed timings on my RAM (for EVERYTHING!) ran like a 3X multiplier, 100MHz divider, and HT at 600MHz(?) with Northbridge/Southbridge Overvolt at 1.5V and pumping 2.95V to my RAM, as well as 1.55 (+200mV) to my CPU - all just to get above 300HTT) Anyway, that's the short answer...I don't really remember the specifics. Since pushing this thing to it's limits, and finding it's boundries, I've been doing nothing but enjoying gaming, and relaxing! (overclocking can be a stressful environment!) Psychlone Last edited by Psychlone : Jun 4, 2006 at 08:31 AM. |
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Jun 8, 2006, 08:08 AM
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#30 |
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Newbie
Join Date: Jun 2006
Location:
buffalo, NY
Posts: 2
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async lantecy-8ns read preamble-6.5ms HT multi on 3x burst length at the max setting. one big problem ive sen so far is the manual to the BIOS setting adjustments and what im actually able to do wiht the 404 bios now. the HT configuration adjustments are suspect here. the manual says i should be able to adjust the HT drive strength. selections should be (auto)(manual) but they are (auto)(optimal). the same thing occours on the HT reciever somp contrl. manual or optimal. this sucks becuase i need to reduce my drive strength to what would be considered on the DFI board as "weak", and on this board, the manual says i should be abel to adjust from strength valuas between 0 to 31....but on the 404 all i can change is auto or optimal. and thats it. also, whats the HT link three state actually do fo rm? disabled or enabled are my options. any insight is appreciated. at 2700mhz now i'm failing OCCT with 6 minutes to go while running super-pi 32m on the other core. i know its just a setting now that will mkae it solid.
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asus a8r32-mvp * opteron 165@2700mhz (300x9)* 2x1gb g.skill HZ * x1900xt * sb x-fi plat. * enermax 535 * swiftech mcp655 pump, apogee waterblock, on water* |
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