Reneplatinum
2 Bronze

XPS 700, can i put 2x GeForce 9800 GT with a 750w PSU ?

hello,   i got the XPS 700 with the 512mb GeForce 7900GTX Dual with SLI, it has the 750watt PSU, can i put in 2 of the GeForce 9800 GT 1GB dual ? they use up to 450watts, can i upgrade too a 1000watt PSU if i need too ?

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4 Replies
contrvlr
5 Rhenium

Re: XPS 700, can i put 2x GeForce 9800 GT with a 750w PSU ?

hello,   i got the XPS 700 with the 512mb GeForce 7900GTX Dual with SLI, it has the 750watt PSU, can i put in 2 of the GeForce 9800 GT 1GB dual ? they use up to 450watts, can i upgrade too a 1000watt PSU if i need too ?

 

The cards don't use up to 450 watts, that's a power supply wattage reccomendation for a single card system.

The 750 watt psu is more than sufficient for dual 9800 GT's. 

 Asus Rampage Formula

Q9650 @ 4.05

2x2 g Corsair Dominators

WD 640 Black

GTX 260 C216 @ 711/1533/1151

Antec TPN 750w

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Reneplatinum
2 Bronze

Re: XPS 700, can i put 2x GeForce 9800 GT with a 750w PSU ?

its me again, ok i put in 2x GeForce 9800 GT 1GB and i start playing BF2 about 10mins into the game the screen goes blank just a black screen, so i truned off SLI and it works fine, i also tried 1 video card at a time and it works fine, i only have a problem when i have them both in and SLI on, i called NIDVIA / EVGA and they said i might not have the power needed to supply them both, can you help me with this, i will get a 1000w PSU if i have too..

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contrvlr
5 Rhenium

Re: XPS 700, can i put 2x GeForce 9800 GT with a 750w PSU ?

Power use between the 2 cards ( 9800GT and 7900GTX ) is extremely similar, Nvidia/EVGA are smoking something if they say that your power supply isn't powerful enough.

http://www.xbitlabs.com/articles/video/display/power-noise_3.html

http://www.xbitlabs.com/articles/video/display/radeon-hd4770_5.html

Your problem could have something to do with the way you installed the drivers, I'm not big on SLI, so can't be of any help there ,sorry.

 Asus Rampage Formula

Q9650 @ 4.05

2x2 g Corsair Dominators

WD 640 Black

GTX 260 C216 @ 711/1533/1151

Antec TPN 750w

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Reneplatinum
2 Bronze

Re: XPS 700, can i put 2x GeForce 9800 GT with a 750w PSU ?

hello again sorry to bug you, i got 2 of theses http://www.memoryexpress.com/Products/PID-MX27159(ME).aspx does it matter if its low profile or not ? cause theses one arn't but i still got them to fit, i wish theres somthing that i can do about this, is there a way to see how much watts that my computer uses ? to see that its not the power supply ?

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