SLI Newbie question.

gtr

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Sep 18, 2005
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I have a general question about SLI. I have a evga 7800GT P/n 256-p2-n517-ax. My quesiton is can I get a 7800gt 256-P2-N516-RX and sil them together? I realize the cards have a little different speeds. Woudl that cause any stability problem or about the same card and will work.

Or would it just be better to get the 7900GTO?
 
I have a general question about SLI. I have a evga 7800GT P/n 256-p2-n517-ax. My quesiton is can I get a 7800gt 256-P2-N516-RX and sil them together? I realize the cards have a little different speeds. Woudl that cause any stability problem or about the same card and will work.

Or would it just be better to get the 7900GTO?

I prefer the two 7800GT's in SLI. That's with a 20.1" Viewsonic DVI widescreen at 1680 x 1050. With non widescreen resolutions up to 1280 x 1024 the 7900GT would be the better setup IMO. I don't have a 7900GT, but I have an x1800xt and I prefer the two 7800GTs.

You can use the two EVGA 7800GT's you refered to in SLI configuration.
 

gtr

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I prefer the two 7800GT's in SLI. That's with a 20.1" Viewsonic DVI widescreen at 1680 x 1050. With non widescreen resolutions up to 1280 x 1024 the 7900GT would be the better setup IMO. I don't have a 7900GT, but I have an x1800xt and I prefer the two 7800GTs.

You can use the two EVGA 7800GT's you refered to in SLI configuration.

Actually I just purchased the 7900GTO. I guess i'll be a pioneer for this new card but the specs looks awesome and should be compeditive to the X1900GT and it's like $270 :D. Check it out.

http://www.evga.com/products/moreinfo.asp?pn=512-P2-N573-AR&family=22
 

gtr

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On the evga site it say Minimum 550 Watt for SLI mode system.
(Minimum recommended power supply with +12 Volt current rating of 34 Amp Amps)

I have a enermax liberty 500W ps with +12V 22amp per rail. Would SLI work if it requires 34A. 22A X 2 =44A but I know it doesn't add up that way and my current PS may be enough?

Thanks for all your help everyone.
 

gtr

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Take the max power across the +12v rails and devide that by 12 to get the actual total current for the +12v rails.

384w/12=32amps Duh! Just short.

I should of purchased SAPPHIRE 100168L Radeon X1900XT for $260 since i can't run SLI anyways :? Oh well, i really don't know which is faster. I wish someone would run some test with the 7900gto.
 

Heyyou27

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The 7900GTO still comes with a 650MHz core and the same 1.1ns DDR3 the 7900GTX has; overclocking the memory to reference 7900GTX's shouldn't be at all difficult.
 

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