SLi Multi-GPU rendering

Xer0x · 05-16-2006, 02:48 PM

Hi, I just got home today, and thought, counter-strike: source seems to be running the same fps from when I just had one video card, as two.

I recently bought a second one, and the performance isn't really that good. In fact, I get 105 FPS full settings with one card, and 75 with two. (Video Stress Test)

I have a 3500+ 64 bit amd
2x 6600GT
1GB RAM

Any other SLi uses encountering this, or what could I do to fix it?

Indoril Nerevar · 05-16-2006, 09:24 PM

Have you tested each card on its own? When I first got my SLI system, I had similar (but worse) troubles, with games lagging a lot. One of my video cards was faulty, and replacing it fixed the problem. One of your cards might be faulty. What brand are your cards?

**gamerman0203** · 05-17-2006, 10:58 AM

some games can not effectivley utilize two cards and in some cases will actually hurt performance. CSS might be one of these.

Xer0x · 05-17-2006, 02:21 PM

Yeah I guessed that, I think Quake 4 can utilize SLi, as when I play it I can use higher settings with getting the max 60fps for that engine. I have Some DiabloTec cards, rare but they're good. I know for sure both aren't faulty because when I received the second one, I put the newer one in the 'primary' slot. But Source might definately be one of those games, is there a way to turn off SLi once hl2.exe is ran?

05-16-2006, 02:48 PM	#1 (permalink)
Xer0x Registered User Join Date: Nov 2005 Posts: 68 OS: Windows XP My System	SLi Multi-GPU rendering Hi, I just got home today, and thought, counter-strike: source seems to be running the same fps from when I just had one video card, as two. I recently bought a second one, and the performance isn't really that good. In fact, I get 105 FPS full settings with one card, and 75 with two. (Video Stress Test) I have a 3500+ 64 bit amd 2x 6600GT 1GB RAM Any other SLi uses encountering this, or what could I do to fix it?

05-16-2006, 09:24 PM	#2 (permalink)
Indoril Nerevar Manager, Games Team Join Date: Jan 2006 Location: Queensland, Australia Posts: 5,009 OS: Windows 7 RC 64-bit My System	Have you tested each card on its own? When I first got my SLI system, I had similar (but worse) troubles, with games lagging a lot. One of my video cards was faulty, and replacing it fixed the problem. One of your cards might be faulty. What brand are your cards? __________________ 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.

05-17-2006, 10:58 AM	#3 (permalink)
gamerman0203 Retired Join Date: Oct 2005 Location: Grand Rapids, MI Posts: 2,144 OS: XP MCE, Ubuntu Gutsy My System	some games can not effectivley utilize two cards and in some cases will actually hurt performance. CSS might be one of these. __________________ Follow These Steps First! CPU-Z \| SensorView \| WinXP Clean Boot \| Latest DirectX \| ATI Catalyst \| Nvidia ForceWare Posting System Specifications

05-17-2006, 02:21 PM	#4 (permalink)
Xer0x Registered User Join Date: Nov 2005 Posts: 68 OS: Windows XP My System	Yeah I guessed that, I think Quake 4 can utilize SLi, as when I play it I can use higher settings with getting the max 60fps for that engine. I have Some DiabloTec cards, rare but they're good. I know for sure both aren't faulty because when I received the second one, I put the newer one in the 'primary' slot. But Source might definately be one of those games, is there a way to turn off SLi once hl2.exe is ran? Last edited by Xer0x; 05-17-2006 at 02:22 PM.