I am having a problem that I can't quite wrap my head around. So I am finally giving in and asking for help. I have two ASUS GTX 295's that I am attempted to run in a quad SLI setup. The system runs fine with one card installed. When the second is installed it slows the entire system down to a crawl. Here is my setup.
Motherboard: ASRock x58 supercomputer
CPU: Core i7 920 Nehalem 2.66GHz
RAM: GSkill 6 x 2 GB DDR3 1600
Video Card: 2 x ASUS GTX 295
HDD: HITACHI 0A38016 1TB 7200 RPM 16MB Cache SATA 3.0Gb/s
DVD: HP SATA
Case: Antec 1200
Power Supply: Corsair 850 Watts
I have tried removing reducing the ram to 4 Gig.
I have tried Updating to the newest drivers for the video card and motherboard.
I do not know much about the settings for RAM in Bios so I have not changed any of those other than to verify that they are running at 1600 DDR3.
I have tried XP pro, Vista 64, and UBUNTU.
Strangley when running that windows performance rating in vista it rates the ram as a 1 with both cards installed as opposed to a 5.9 when it is runnin with one video card.
This is my first SLI setup. Please any help or ideas anyone could give me would be greatly appreciated.
Motherboard: ASRock x58 supercomputer
CPU: Core i7 920 Nehalem 2.66GHz
RAM: GSkill 6 x 2 GB DDR3 1600
Video Card: 2 x ASUS GTX 295
HDD: HITACHI 0A38016 1TB 7200 RPM 16MB Cache SATA 3.0Gb/s
DVD: HP SATA
Case: Antec 1200
Power Supply: Corsair 850 Watts
I have tried removing reducing the ram to 4 Gig.
I have tried Updating to the newest drivers for the video card and motherboard.
I do not know much about the settings for RAM in Bios so I have not changed any of those other than to verify that they are running at 1600 DDR3.
I have tried XP pro, Vista 64, and UBUNTU.
Strangley when running that windows performance rating in vista it rates the ram as a 1 with both cards installed as opposed to a 5.9 when it is runnin with one video card.
This is my first SLI setup. Please any help or ideas anyone could give me would be greatly appreciated.