GPU core clock speed dropped

I'm running GTX 280M in SLI. I just had a small power interruption while playing and my M17x-R1 switched off.

When I restarted, the game was stuttering. Furmark shows that the 2nd GPU core is running at 275 MHz, the first at is 383 MHz. GPU-Z 'sensors' confirms this when I run the Render Test (icon near 'Bus Interface'). I haven't OC'ed the GPU. And now that the clock speeds are different, SLI is not activating - no SLI indicators. I've already uninstalled and clean re-installed the drivers (290.53 laptopvideo2go).

In NV control panel, 'power management mode' = "Prefer maximum performance" and SLI rendering mode = nvidia recommended. Tried SLI modes AFR 1 & 2 (alternate frame rendering), no luck.

Did my GPU get fried somehow during the power loss?

I've run Furmark and it looks like both my GPUs' core clocks are locked at 383MHz and 275MHz MAX respectively. It doesn't reach the 583 MHz even when running Furmark.

 

Well, the system should not take damage from an sudden power shut - Although, i've heard of stories where it has happened.

I would suggest you to try to do an vBIOS update of your cards. Try to flash them, just to see if you could "reset" the clocks to what they're supposed to be.


Thats all of tips i could give, I'm really not sure..


- Scott.

 

I was also considering doing that but instead of flashing the GPU vbios to reset to default, I would rather just get them replaced since they're under warranty. If I can't fix it some other way, then I won't flash.

I don't get how my clock speeds have got stuck...and at below max.

 

Yeah, you're right, I'd do it under warranty aswell. Might give you an upgraded card aswell, as the GTX 285's are out of production a long time ago




- Scott.

 

I was about to try a 'bios power drain' in case there was some setting affected in BIOS about the card. It occured to me... when the power cut off, the laptop may have tried to go onto battery in a power saver mode during the 0.1 seconds is survived on battery. Upon restarting, it may not have registered that the power supply had resumed. So in a very South Park " Internet Reset" kinda way, I pulled out my power cable, watched the GPU-Z sensors and then reconnected it - core clock back up to 583 MHz on both cards!