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For some reason my 690 is showing up in GPU-Z as having the primary chip running at x1 and the other running at x8. My bios shows that the card is running at x16.

What's weird is when I start my PC, the x8 chip shows up at x16, then shortly after goes back down to x8. If I turn off SLI, the x8 chip will go up to x16. If I turn off SLI and disable one of the chips, that chip will go to x16. The only way I can get the primary chip to go to x16 is if I turn off SLI and disable the chip.

Just to make sure it wasn't an issue with GPU-Z, I ran some tests with the CUDA SDK bandwithTest app. I get ~6300Mb/s on the x8 chip, and ~780Mb/s on the x1 chip. I've seen other people run the test with a 690 and get ~6300Mb/s on both chips. There's also a combined test which I get something like 7000Mb/s on, whereas it should be like 12k.

I also get performance issues in anything that requires reading back information from the GPU. Recording with Fraps is horrible.

I've tried clean installing the driver with Display Driver Uninstaller but that didn't work.

I'm using the latest driver (335.23).

EDIT: I'm also using the latest bios revision.
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770k ASUS Maximus IV Extreme EVGA GTX 690 Corsair XMS3 2000mhz 2x4gb 
Hard DriveCoolingOSMonitor
1x 500gb, 2x1tb striped Cooler Master Seidon 240M Windows 7 Pro x64 Acer G24 
MonitorKeyboardPowerCase
BenQ XL2410T Topre Realforce Corsair AX1200 Corsair Obsidian 800D 
MouseMouse PadAudioAudio
SteelSeries Sensei Mionix Sargas 400 Logitech Z-5500 Sennheiser PC 360 
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My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770k ASUS Maximus IV Extreme EVGA GTX 690 Corsair XMS3 2000mhz 2x4gb 
Hard DriveCoolingOSMonitor
1x 500gb, 2x1tb striped Cooler Master Seidon 240M Windows 7 Pro x64 Acer G24 
MonitorKeyboardPowerCase
BenQ XL2410T Topre Realforce Corsair AX1200 Corsair Obsidian 800D 
MouseMouse PadAudioAudio
SteelSeries Sensei Mionix Sargas 400 Logitech Z-5500 Sennheiser PC 360 
  hide details  
Reply