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  • pax
    replied
    https://www.tomshardware.com/news/3d...-rdna3-amd-gpu

    Semiconductor engineer Tom Wassick has discovered what he believes to be 3D V-Cache functionality on one of AMD's best GPUs, the RX 7900 XT. The engineer took a peak inside the 7900 XT's die with infrared imaging and found the same type of 3D V-Cache connection points used on AMD's Zen 3 and Zen 4 architecture. Wassick spotted the connections on the MCD die.
    Few others recently said ​refreshes for navi3x werent gonna happen but this kind of indicates otherwise...

    Leave a comment:


  • Riptide
    replied
    Got a 7900 XTX reference card (sapphire) that I'm about to return to Newegg tomorrow for a refund. No vapor chamber issues. I have an AIB that I'm testing next ready to go.

    If someone here wants it shoot me a DM today and let me know. I'll sell it for 1000 plus ship. I have vouchers on rage too if needed.

    Leave a comment:


  • Falck
    replied
    Well...

    I was one of "the lucky ones" that got my hands on an XTX Radeon 7900 XTX MBA at launch, against all botts.

    Well, I was of course one of those that got the VC issue... It worked in vertical mode as intended, but oh well, went on used market to see if anyone was selling their MBA card at a decent price. Lo and behold! I found one! The seller had also tested the card in horizontal and it maxed about 90C in junction/hotspot under heavy gaming. Drove 1.5hours and manged to haggle it down to eqvivalent to 20USD above MSRP, so I was happy. Drove for 1.5hours to get home. Lucky day no. 2!

    Well...

    As it seems, my case ssupd Meshlicious, has the graphics card in an "awkward" position with the IO of the card pointing down on the desk. And this "new" card, a PowerColor Radeon 7900XTX MBA, didn't like that position... got 110C almost as fast as I started CyberPunk '77... At first I thought I was scammed, but I cooled down (pun intended), let the card also cool down, laid the case on it's side so that the card could be in "normal" horizontal operating position. Ran CyberPunk '77 again and success! I got a junction/hotspot max of 87C! Even after hours of playing, rock stable! BUT! I don't want to change my case, and keeping it on it's side like that and not suffocate the card I had to build a "bridge" for the case to lay on so that it could circulate the air for the graphics card. Defiantly not ideal! This image is from before I built the "bridge with books"



    Soooo, what to do? No shop in Norway would get any cards in, well all except one. And that one serves at least 4 countries... Tried 4 times to buy when they released, but they where gone before the buy button got enabled (bots, yay).

    Got desperate as I already had sold my former card, and delivered it. So I went on eBay. Found a seller in another country, Germany, selling a Sapphire 7900XTX Pulse! card! @ MSRP! NEW! I double checked the measurements at Sapphire's site and it should fit, so I took a chance and ordered it. Never heard of the store, and it didn't have that many reviews even though they were registered on eBay since 2001 (If I remember correctly). Was kinda nervous. A lot of money if I get scammed. But, only 5 days later I recieved the card! She's a beauty! A tight fit, really tight, but perfect! As it should be!



    I also treated myself, because of all the trouble I had to go through and got myself a new monitor as well.



    Now I can game, hotspot around 80C, life is perfect! Oh, and the monitor is great too! Went from a Gigabyte G34WQC. Night and day, night and day....

    Leave a comment:


  • Trunks0
    replied
    I'm not surprised given how the issues encountered with some of reference coolers. I'd rather they sorted that out and just continueing to pump em out. Plus the AIB's would rather ship cards without the AIB cooler and charge a little extra.

    Personally I bought a Power Color Red Devil 7900XTX off Riptide. Card has been an absolute charm so far.

    Leave a comment:


  • LordHawkwind
    replied
    What's really funny is I've had a few emails from AMD.com extolling the 7900XTX and a link to the UK shop to buy it. When you click on the link there are no 7900XTX cards to buy only the last gen 6XXX. Total joke really. Apparently AMD can't even provide new cards for RMA purposes. Sad but the usual clusterf*ck of an AMD GPU launch. All the big e-tailers in the UK don't seem to have any stock of the AIB models either so they also seem to be missing in action too.

    Leave a comment:


  • KAC
    replied
    I am thinking about picking this up for MW2. The performance at 4K with the 7900XTX is amazing. However, one game to continuously swap out cards might be a bit of a hassle lol.

    Leave a comment:


  • Nagorak
    replied
    AMD actually has decent VR performance with the Radeon 6000 series, but for some reason on 7000 series it is bugged again. That is the major reason why I ruled out getting any AMD card currently. Hopefully eventually it will be fixed, but for now they are a no-go for VR (again).

    I will say one positive about the 7000 series line-up is the coolers are less ridiculously sized. The 4090 coolers are all absurdly oversized and that carries over to the 4080s from what I have heard (even though it makes even less sense with the 4080). And, I mean, they are big to the point that a lot of cases will have problems with them. So, that is definitely one thing the 7900 XTX has going for it.

    Still at $1150 I agree it would be a hard sell for me, even VR problems aside.

    Leave a comment:


  • 0091/2
    replied
    Originally posted by CyanBlues View Post
    At that price isn't it better to get Nvidia? The XFX has better cooling but it doesn't offer additional performance worth talking about. I heard AMD still have crappy performance in VR. Is there any chance AMD will release something that competes with the 4900?

    Leave a comment:


  • CyanBlues
    replied
    https://www.amazon.com/gp/product/B0BNLSW23M?th=1
    xfx merc
    310 7900xtx available on amazon - $1149

    xtx_resize.jpg

    Leave a comment:


  • pax
    replied
    Ya looks like a handful of 7600x use 2 CCD chiplets instead of one. Has me wondering if there are 2 chiplet 7800's as well. Or even 6 core 2 chiplet 7900x's. Maybe the non x skus have that...

    Leave a comment:


  • pax
    replied
    Originally posted by Nagorak View Post

    I definitely would not buy any MBA 7900 XTXs used. All you need is to be saddled with a card with a defective cooler and no warranty. Granted, you could just replace the cooler or water cool the card, but it's better to have that as an option rather than having it forced upon you.
    Ya its tempting but a refurb at some point unless its got a good warranty and a good price would be too big a risk imo. I have bought a few refurb in the day like speakers that were fine but also some units like mobos that had almost no warranty, 45 days IIRC, and didnt last...

    Leave a comment:


  • Megaman
    replied
    https://www.guru3d.com/news-story/am...600x-cpus.html

    Leave a comment:


  • Nagorak
    replied
    Originally posted by pax View Post
    Interesting vid but the used card he had that had a bad cooler was probably oced and damaged... Reason I think that is Roman is a hardcore overclocker and many in his audience are as well. If the previous owner pushed the card hard with bad cooling it could have put a lot of stress on the card. If cards blew their caps this easily we'd hear a lot more about it. As for the cooler issue yeah they should pull all affected batches if they know which ones they are and not wait for owners to make a claim. My bet is they dont irrelevant of statements and maybe some cards in the same batch are fine but other arent if the machine that depressurizes the cooler and inserts the coolant was intermittently faulty. AIB models are fine AFAW and Roman know so best to simply avoid any MBA's for now.
    I definitely would not buy any MBA 7900 XTXs used. All you need is to be saddled with a card with a defective cooler and no warranty. Granted, you could just replace the cooler or water cool the card, but it's better to have that as an option rather than having it forced upon you.

    Leave a comment:


  • Trunks0
    replied
    For those wondering, here is Der8auer's video

    Leave a comment:


  • pax
    replied
    Interesting vid but the used card he had that had a bad cooler was probably oced and damaged... Reason I think that is Roman is a hardcore overclocker and many in his audience are as well. If the previous owner pushed the card hard with bad cooling it could have put a lot of stress on the card. If cards blew their caps this easily we'd hear a lot more about it. As for the cooler issue yeah they should pull all affected batches if they know which ones they are and not wait for owners to make a claim. My bet is they dont irrelevant of statements and maybe some cards in the same batch are fine but other arent if the machine that depressurizes the cooler and inserts the coolant was intermittently faulty. AIB models are fine AFAW and Roman know so best to simply avoid any MBA's for now.

    Leave a comment:


  • KAC
    replied
    Hahaha Der Bauer’s latest video. He destroys AMD and also part of the video was hilarious. Hahaha.

    Leave a comment:


  • pax
    replied
    Prices were too high for too long and companies think they can keep them high. Maybe they think a crypto rally is around the corner, so its a tug of war between gpu makers and consumers... how long they will go to keep them high I cant imagine being past next summer with sales this low.

    Leave a comment:


  • Nagorak
    replied
    The really odd thing about the pricing is that third quarter GPU sales were atrocious. People clearly were not interest in buying even then, and other than cards being dropped in at the high end, prices across the board haven't gone down since then. The pricing structure just seems odd to me.

    Leave a comment:


  • pax
    replied
    Prices should drop by summer. GPU's just arent selling. Tho sux that my Vega64 seems to have given up the ghost... running on the old R290 for a few months is doable but not much longer than that...

    Leave a comment:


  • NIGELG
    replied
    AMD continues to shoot themselves in the foot in terms of GPU'S.

    Their prices also suck just like Nvidia's. Maybe Intel can save the true midrange gamer.

    Leave a comment:


  • KAC
    replied
    Basically he said only cards made by AMD had a bad batch. You can contact them and they will replace it for you.

    Leave a comment:


  • Falck
    replied
    Herkelman responds to the cooler problems. Haven't heard the interview myself as I can't enable audio at work.

    https://www.youtube.com/watch?v=X87OzJ3bU7o

    Leave a comment:


  • pax
    replied
    Looks like a partial recall will happen... probably waiting to compile serial numbers for bad batches:

    https://www.igorslab.de/en/amd-radeo...cement-begins/

    I deliberately waited until I could get congruent and plausible information through various information channels, which can now also shed some light after two to three weeks. While AMD’s support initially resisted even acknowledging the hotspot problem as such and described the 110 °C hotspot temperature as completely normal, the situation is now much more pleasant from the customer’s point of view.

    I would also like to take this opportunity to thank in advance all those who have provided me with information over the last two or three weeks but who, for understandable reasons, do not want to or cannot be named. However, I explicitly point out that all this information should be considered preliminary until an official statement from AMD and that there could still be corrections to the mentioned numbers.

    In this context, I had actually waited for yesterday, because a statement from AMD was communicated internally (I wrote about it several times that I would like to wait for this for the time being), but then it did not happen. I am therefore taking this incomprehensible delay as an opportunity today to bring some transparency to the matter.

    The problem is already known for more than two weeks and is communicated between AMD and the distributors (internally) .. How exactly the problem will be communicated to the end customer has not yet been finally decided. … AMD’s statement was originally supposed to be made on January 3, 2023 at 6 p.m. CET, but it was postponed. (quote from email)

    Leave a comment:


  • bill dennison
    replied
    Originally posted by Nagorak View Post
    The issue is once you pay the premium for an AIB you're getting even closer to the price of a 4080 FE.
    but i would never buy a founders edition either they are a pain to take apart if you want to water cool it and getting it back togather for a RMA would be hell
    and the only reasion i would ever buy a AMD reference is to water cool it ASAP but the coil whine kills that

    Leave a comment:


  • Megaman
    replied
    AMD confirmed the issue

    We are working to determine the root cause of the unexpected throttling experienced by some while using the AMD Radeon RX 7900 XTX graphics cards made by AMD. Based on our observations to-date, we believe the issue relates to the thermal solution used in the AMD reference design and appears to be present in a limited number of the cards sold.

    We are committed to solving this issue for impacted cards. Customers experiencing this unexpected throttling should contact AMD Support (https://www.amd.com/en/support/contact-call).

    Leave a comment:


  • Nagorak
    replied
    The issue is once you pay the premium for an AIB you're getting even closer to the price of a 4080 FE.

    Leave a comment:


  • demo
    replied
    Excellent video. Moral of the story, do not buy AMD reference. Stick to AIB this time.

    Leave a comment:


  • pax
    replied
    https://wccftech.com/amd-radeon-rx-7...ntial-problem/

    Some more info as Derbauer dug into the cooler. Not enough fluid in some coolers being speculated being a major issue but he also mentions part of the coolers vapor chamber seemed to be separate. Or possibly wrong pressure when it was built in as they need to be a low pressure environment to work properly.

    Leave a comment:


  • pax
    replied
    https://old.reddit.com/r/Amd/comment...about_hotspot/

    According to OEM cooler manufacturer source of igorsLAB:
    First feedback from a manufacturer: they suspect that at least one batch simply had too little liquid introduced. This could also explain the dependence on position. Hanging horizontally, the condensate would then no longer come up.
    So it would seem to be lack of fluid in the vapor chamber of some cards.

    https://www.computerbase.de/2023-01/...bleme-hotspot/

    26% affected according to this poll...

    Leave a comment:


  • pax
    replied
    Ya aib coolers seems to be mostly fine... tho a few did also report high deltas between gpu and hot spot temps... shouldnt be more than 15c usually... I just ran furmark and it was 15c on my old vega 64.

    Leave a comment:


  • Sand-Man
    replied
    You fellows are still around
    Waited long time for a new gpu.Completely satisfied custom aib card xtx.
    https://www.3dmark.com/pr/2020993

    Leave a comment:


  • pax
    replied
    Rumor is they tried to beat the tarriffs deadline of Jan 1st, since delayed by 9 months, so released an unfinished product. Id offer replacements for any overheating cards. They could easily be sent to aib's to have a proper cooler put on them assuming its just the cooler thats the issue.

    Leave a comment:


  • Nagorak
    replied
    It's probably a long shot that is the problem, but at least worth trying.

    There seems to also be some other issue with the vapor chamber based on Derbauer's testing.



    I am just shaking my head at the 7900 launch at this point. I've tried to give AMD the benefit of the doubt in the past because they did a good job with Zen, and they delivered pretty well with Radeon 6000 series, but this is just a total cluster. It's not just the card falling far short of what their cherry picked gaming benchmarks suggested, even the cooler itself is defective. I honestly don't even know what to say.

    Leave a comment:


  • Falck
    replied
    Originally posted by Nagorak View Post
    Strange as it seems, apparently some Displayport cables can cause high hot spot temperatures if pin 20 is connected. So, you may want to try a different cable and see if it helps (maybe even try using HDMI temporarily to check).
    I'll test with just HDMI. If it works I have to find out if my HP Reverb G2 has that pin20 active. If so I need HP to manufacture and send me a new cable without pin 20 being connected XD

    Leave a comment:


  • pax
    replied
    Interesting hope he gets around to do a couple more things like cutting open a good cooler vs a bad one and maybe measure the fluid if possible. Might be difficult on that last thing tho if the amount of fluid is too little as he says as recuperating it might be very difficult.

    Id also swap coolers between 2 gpus to see if its a cooler issue or a silicon issue...
    Last edited by pax; Jan 1, 2023, 01:34 PM.

    Leave a comment:


  • Mangler
    replied
    Going by this derbauer video, there is no DIY fix, if you got one of the bad cards, RMA it.

    Leave a comment:


  • LordHawkwind
    replied
    Still no stock of the 7900XTX that I can find at main UK retailers. With this hot spot issue I think I'll maintain a watching brief for a few months to see how it all pans out. In no rush. Happy New Year everyone!!

    Leave a comment:


  • Nagorak
    replied
    Strange as it seems, apparently some Displayport cables can cause high hot spot temperatures if pin 20 is connected. So, you may want to try a different cable and see if it helps (maybe even try using HDMI temporarily to check).

    Leave a comment:


  • Falck
    replied
    Just created a support ticket at XFX, curious about what they say.

    Leave a comment:


  • Mangler
    replied
    He ran the card on a test bench(vertical orientation), so he fixed an issue, but he never tested if he fixed THE issue.

    Leave a comment:

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