SLi Question

swarner · 07-11-2008, 06:53 AM

Hi,

If i pair a 8800 Ultra with a 8800 GTX will my Ultra be downclocked to the normal GTX speeds?

Thanks

HawMan · 07-11-2008, 07:18 AM

You it wont work in SLI because you need the same model.

8800ultra with another 8800ultra

or

8800gtx with another 8800gtx

jrobinson3k1 · 07-11-2008, 08:40 AM

yup, what HawMan said.

Model is the only thing that has to match, manufacturer does not (Ex. eVGA 8800 Ultra and ASUS 8800 Ultra are SLI capatable)

dai · 07-11-2008, 10:26 AM

you will probably have to upgrade your psu to run two cards

swarner · 07-11-2008, 05:17 PM

Thanks for all replies and info

psu should be ok: Dell 750W. Specifications:

MODEL: H750P-00
DC OUTPUT:
+5V=/16A , +3.3v=/30A
+12VA=/18A , +12VB=/18A
+12VC=/18A , +12VD=/16A
-12V=/0.2A , +5Vfp=/3A

I know Dell aint the best make but it has decent amps on the 12v rails and the PSU is designed to run SLi.

**Aus_Karlos** · 07-11-2008, 10:33 PM

For a single 8800GTX you require 32A on the 12V line. To run SLI on these cards you will require at least 48A - 60A depending on what else you have on your system.
So you will be looking for a PSU with about 800W-900W with a 12V @ 60A.

jrobinson3k1 · 07-11-2008, 11:44 PM

Your PSU will run it just fine

07-11-2008, 06:53 AM	#1 (permalink)
swarner Registered User Join Date: Aug 2005 Location: Ireland Posts: 272 OS: Vista Ultimate	SLi Question Hi, If i pair a 8800 Ultra with a 8800 GTX will my Ultra be downclocked to the normal GTX speeds? Thanks __________________ Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad Computers are like air conditioners. They work best with windows closed.

07-11-2008, 07:18 AM	#2 (permalink)
HawMan Liam Join Date: May 2006 Location: Edinburgh, Scotland Posts: 2,943 OS: Win XP My System	Re: SLi Question You it wont work in SLI because you need the same model. 8800ultra with another 8800ultra or 8800gtx with another 8800gtx __________________ Please Consider Donating to keep the site free.

07-11-2008, 08:40 AM	#3 (permalink)
jrobinson3k1 Registered User Join Date: Jul 2008 Posts: 4 OS: Vista X64	Re: SLi Question yup, what HawMan said. Model is the only thing that has to match, manufacturer does not (Ex. eVGA 8800 Ultra and ASUS 8800 Ultra are SLI capatable)

07-11-2008, 10:26 AM	#4 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,785 OS: win 7 32x 64x rtm	Re: SLi Question you will probably have to upgrade your psu to run two cards __________________

07-11-2008, 05:17 PM	#5 (permalink)
swarner Registered User Join Date: Aug 2005 Location: Ireland Posts: 272 OS: Vista Ultimate	Re: SLi Question Thanks for all replies and info psu should be ok: Dell 750W. Specifications: MODEL: H750P-00 DC OUTPUT: +5V=/16A , +3.3v=/30A +12VA=/18A , +12VB=/18A +12VC=/18A , +12VD=/16A -12V=/0.2A , +5Vfp=/3A I know Dell aint the best make but it has decent amps on the 12v rails and the PSU is designed to run SLi. __________________ Knowledge is knowing a tomato is a fruit; Wisdom is not putting it in a fruit salad Computers are like air conditioners. They work best with windows closed.

07-11-2008, 10:33 PM	#6 (permalink)
Aus_Karlos Moderator, Games Team Join Date: Mar 2007 Location: Western Australia Posts: 3,480 OS: Vista Ultimate x64, Windows XP 32-bit/64-bit, Ubuntu x64, Windows 7 x64 Beta My System Blog Entries: 2	Re: SLi Question For a single 8800GTX you require 32A on the 12V line. To run SLI on these cards you will require at least 48A - 60A depending on what else you have on your system. So you will be looking for a PSU with about 800W-900W with a 12V @ 60A. __________________ MemTest86 / Nvidia Drivers / ATI Drivers / DirectX 9.0c / Sys Requirements / Everest Folding@Home

07-11-2008, 11:44 PM	#7 (permalink)
jrobinson3k1 Registered User Join Date: Jul 2008 Posts: 4 OS: Vista X64	Re: SLi Question Your PSU will run it just fine