Two Power Supplies?

RobcioPL · Nov 21, 2005, 11:09 PM

Ok, im in a pickle. My power supply is currently 300W. I want to get a X800 or a X850, but the requirement is 350W+. If I use my stock power supply to power everything but the card, can i have a another power supply that is 300W to power just the graphics card? I know that the graphics card does not use 350W, but other things do use some of it too. How much of it does the card use?

Ristogod · Nov 21, 2005, 11:36 PM

You could use two power supplies, but it just doesn't make sense. You first have a problem with them both having to be powered up with the same push of a button. Also, you need room for two power supplies, most cases don't have room.

Also, it isn't that expensive just to get a single more powerful power supply. And it only costs around $100 to get a higher end power supply. No reason to have a nice graphics card and not protect it with a crapola power supply.

seeker010 · Nov 22, 2005, 01:49 AM

Quote:

Originally Posted by ristogod

You could use two power supplies, but it just doesn't make sense. You first have a problem with them both having to be powered up with the same push of a button. Also, you need room for two power supplies, most cases don't have room.

Also, it isn't that expensive just to get a single more powerful power supply. And it only costs around $100 to get a higher end power supply. No reason to have a nice graphics card and not protect it with a crapola power supply.

yeah, not sure about you but I wouldn't want to protect my graphics card with a crapola power supply

Elysian · Nov 22, 2005, 02:30 AM

http://www.newegg.com/Product/Produc...82E16817148012 i would highly recommend this PS... its what i run in my system, and its voltages are solid as a rock, great power supply, even comes with an extra 120mm fan and extra fan controller...

RobcioPL · Nov 22, 2005, 12:33 PM

As cool as it might look, i dont need any lights, because my case has now windows. Wouldnt 550W be going alittle overboard?

Elysian · Nov 22, 2005, 12:42 PM

who cares about the lights? its a great psu for the price, and no, 550 is not overboard. wouldn't 2 psu's be overboard? my case doesn't have windows either, but i still have one in it(although now the back of my comp is lit up blue

)

Ristogod · Nov 22, 2005, 01:50 PM

Quote:

Originally Posted by RobcioPL

Wouldnt 550W be going alittle overboard?

Having enough power is not overboard.

2 power supplies however is.

dddibley · Nov 22, 2005, 05:17 PM

Installation issues aside.. you'll need a harness to chain the two together, like they have on the CM Stacker. Here's a link (typical). Haven't read it through but looks doable.

http://www.burningissues.net/how_to/power/psu.htm

ddd

Moevan1 · Nov 22, 2005, 09:20 PM

its still a bit pointless to bother with 2 PSU's. I mean its better to have a solid single unit than to rig a dual PSU setup that really isn't even needed

caveman-jim · Nov 23, 2005, 07:28 AM

2 PSU's make sense for server's where uptime & reliability are important. Not for a desktop rig, unless you happen to have 2 300W PSU's already, and want to use both of them. Get a high power quality unit, you won't reget it. I've got an Ultra XConnect 500, it's great - modular so you can only have the cables you need. Solid rails, too.

Moevan1 · Nov 23, 2005, 12:18 PM

Quote:

Originally Posted by caveman-jim

2 PSU's make sense for server's where uptime & reliability are important. Not for a desktop rig, unless you happen to have 2 300W PSU's already, and want to use both of them. Get a high power quality unit, you won't reget it. I've got an Ultra XConnect 500, it's great - modular so you can only have the cables you need. Solid rails, too.

but, we aren't taking about a server. If we were your point would be valid

Ristogod · Nov 23, 2005, 12:40 PM

Quote:

Originally Posted by Moevan1

but, we aren't taking about a server. If we were your point would be valid

Also, servers use redundant power supplies. In other words, when one fails, the other takes over.

Two power supplies for a desktop wired together like in the stacker case only allow for both power supplies to power on at the same time. Only one actually powers the motherboard, while the other powers whatever else you connect it to. The second power supply will not take over if the main one fails. So two power supplies in this scenario won't give you any more protection.

Nov 21, 2005, 11:09 PM	#1	Advertisement (Guests Only) Login or Register to remove this ad
RobcioPL Radeon R200 Join Date: Nov 2005 Location: Chicago, Illinois Posts: 69	Two Power Supplies? Ok, im in a pickle. My power supply is currently 300W. I want to get a X800 or a X850, but the requirement is 350W+. If I use my stock power supply to power everything but the card, can i have a another power supply that is 300W to power just the graphics card? I know that the graphics card does not use 350W, but other things do use some of it too. How much of it does the card use? __________________ Pentium 4 2.6ghz 1.5GB Ram 80GB Hardrive ATi X850xt

Nov 21, 2005, 11:36 PM	#2
Ristogod Semper Vigilare Join Date: Jan 2002 Location: MN Posts: 13,226	You could use two power supplies, but it just doesn't make sense. You first have a problem with them both having to be powered up with the same push of a button. Also, you need room for two power supplies, most cases don't have room. Also, it isn't that expensive just to get a single more powerful power supply. And it only costs around $100 to get a higher end power supply. No reason to have a nice graphics card and not protect it with a crapola power supply. __________________ My Dealings Heatware eBay Amazon

Ristogod's System Specs
Motherboard	GA-AB350M-Gaming 3
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seeker010's System Specs
Motherboard	Soyo SY-5EMM
CPU	AMD K6-3+ [email protected]
Graphics	ATI Radeon 32MB SDR + Voodoo 2 12mb SLI
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Cooling Solution	SLK-800 w/ vantec 80mm silencer
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Hard-Drives	WD Caviar SE 200GB
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Elysian's System Specs
Motherboard	MSI 970A Gaming Pro Carbo
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Hard-Drives	Toshiba Q300 240gb ssd
Optical Drives	BluRay
Power Supply	EVGA 500w
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Nov 22, 2005, 12:33 PM	#5
RobcioPL Radeon R200 Join Date: Nov 2005 Location: Chicago, Illinois Posts: 69	As cool as it might look, i dont need any lights, because my case has now windows. Wouldnt 550W be going alittle overboard? __________________ Pentium 4 2.6ghz 1.5GB Ram 80GB Hardrive ATi X850xt

Nov 22, 2005, 05:17 PM	#8
dddibley time well wasted Join Date: Feb 2002 Location: British Columbia Posts: 525	Installation issues aside.. you'll need a harness to chain the two together, like they have on the CM Stacker. Here's a link (typical). Haven't read it through but looks doable. http://www.burningissues.net/how_to/power/psu.htm ddd __________________ Sonata II, SP-450W, P4P800SE, Prescott 3.0E (7000B AlCu), 2x512 Infineon, ATI X800XL 256 VIVO, Samsung 913v II, PVR-250, 60GB WD, 80GB Samsung, DVD16DL, DVDROM, FanMaster, XP Pro

Nov 22, 2005, 09:20 PM	#9
Moevan1 X800XL Join Date: Nov 2004 Location: vancity Posts: 388	its still a bit pointless to bother with 2 PSU's. I mean its better to have a solid single unit than to rig a dual PSU setup that really isn't even needed __________________ AMD X2 3800+ Manchester ASROCK dual SATA 2 DiamondMax 10 250gigs 16mb cache 7200rpm 1024MB Corsair PC3200 Dual Channel DDR 400Mhz running ATI X800XL 256DDR3 radeon

Nov 23, 2005, 07:28 AM	#10
caveman-jim Deposed King of Rage3D Join Date: Oct 2003 Posts: 48,926	2 PSU's make sense for server's where uptime & reliability are important. Not for a desktop rig, unless you happen to have 2 300W PSU's already, and want to use both of them. Get a high power quality unit, you won't reget it. I've got an Ultra XConnect 500, it's great - modular so you can only have the cables you need. Solid rails, too.

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