SLI Help

Rancid-Milk-Man · 08-31-2006, 09:08 AM

I just built my first SLI system this week and I'm having some problems. Everytime I enable SLi on my video cards on restart it loads to windows, freezes and then restarts. This happens everytime I try and start my computer.

Motherboard: Asus A8N32-SLI deluxe
Graphics Cards:
1)eVGA 256-P2-N518 Geforce 7800GT 256MB GDDR3 PCI Express x16 Video Card - Retail
1)eVGA 256-P2-N516-RX Geforce 7800GT 256MB GDDR3 PCI Express x16 Video Card - Retail (this seems to be an updated version of the above card)

Could it be that the speeds are off and if so how so I change them?

**pharoah** · 08-31-2006, 11:17 AM

no with the newest drivers sli can work between different cards as long as they are the same gpu type like yours 2x7800gt. first thing i would do is remove your older card that you know works and test the new card to make sure its not at fault.if its good try a driver cleaner like this http://www.drivercleaner.net/ then do a fresh install of your drivers. in the case of one card having higher clocks the faster card will be slowed to match the slower card

Indoril Nerevar · 09-01-2006, 12:37 AM

pharoah has given you good advice. As suggested, test each card on its own, to make sure they both work.

What driver version are you using? I recommend you use the 84.21's, as they are the most up-to-date drivers which are stable. The newer 91.31's have a lot of bugs.

If you still have problems, it would help for us to know the rest of your system specs, especially the power supply (see "Posting System Specs" in my signature).

08-31-2006, 09:08 AM	#1 (permalink)
Rancid-Milk-Man Registered User Join Date: Feb 2005 Posts: 61 OS: Windows Xp Pro	SLI Help I just built my first SLI system this week and I'm having some problems. Everytime I enable SLi on my video cards on restart it loads to windows, freezes and then restarts. This happens everytime I try and start my computer. Motherboard: Asus A8N32-SLI deluxe Graphics Cards: 1)eVGA 256-P2-N518 Geforce 7800GT 256MB GDDR3 PCI Express x16 Video Card - Retail 1)eVGA 256-P2-N516-RX Geforce 7800GT 256MB GDDR3 PCI Express x16 Video Card - Retail (this seems to be an updated version of the above card) Could it be that the speeds are off and if so how so I change them?

08-31-2006, 11:17 AM	#2 (permalink)
pharoah TSF Enthusiast Join Date: Aug 2006 Posts: 5,188 OS: vista business edition My System	no with the newest drivers sli can work between different cards as long as they are the same gpu type like yours 2x7800gt. first thing i would do is remove your older card that you know works and test the new card to make sure its not at fault.if its good try a driver cleaner like this http://www.drivercleaner.net/ then do a fresh install of your drivers. in the case of one card having higher clocks the faster card will be slowed to match the slower card __________________ Follow These Steps First Power Supply Selection Posting System Specs Oblivion Tweak Guide Video Drivers& Information TSF folding at home team 85015 Last edited by pharoah; 08-31-2006 at 11:28 AM.

09-01-2006, 12:37 AM	#3 (permalink)
Indoril Nerevar Manager, Games Team Join Date: Jan 2006 Location: Queensland, Australia Posts: 5,008 OS: Windows 7 RC 64-bit My System	pharoah has given you good advice. As suggested, test each card on its own, to make sure they both work. What driver version are you using? I recommend you use the 84.21's, as they are the most up-to-date drivers which are stable. The newer 91.31's have a lot of bugs. If you still have problems, it would help for us to know the rest of your system specs, especially the power supply (see "Posting System Specs" in my signature). __________________ Donating to the forum keeps TSF free for all. • Common PC Game Issues • Common Installation Issues • Posting System Specs • Power Supply Information • • NVIDIA Drivers • ATI Drivers • Thermal Paste Guide • System Requirements Lab • YouGamers Game-o-Meter • • Everest • Prime95 • DirectX • AMD Drivers • Memtest86 • SensorsView • Driver Cleaner • I do not give help via PM. Please post your question on the forum. Last edited by Indoril Nerevar; 09-01-2006 at 12:38 AM.