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SLI Newbie question.

Forum Graphic & Displays : Graphics Cards - SLI Newbie question.

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gtr   10-01-2006 at 06:24:27 AM

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?

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badge   10-01-2006 at 06:54:40 AM
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Quote :

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.

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sirheck   10-01-2006 at 06:57:06 AM
- 0 +

go to invidias web site and read up about it
maybee and maybee not?

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prozac26   10-01-2006 at 02:57:09 PM
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Well, you can mix up brands and clock speeds with SLI now, so it shouldn't be an issue.

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gtr   10-01-2006 at 04:46:35 PM
- 0 +

Quote :

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/morei [...] &family=22

Reply to gtr
gtr   10-01-2006 at 04:51:21 PM
- 0 +

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.

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gtr   10-01-2006 at 05:44:06 PM
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Quote :

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.

Reply to gtr
Heyyou27   10-01-2006 at 06:21:53 PM
- 0 +

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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