Asus G1S 8600M GT PCI-E x16 @ x1 problem

Hello,

I guess I've had this problem since last month. At first I noticed a drop in fps when running 3DMark06. Fps dropped from about 26 to 16 fps at certain point (about 40 % less than normal). Total score with standard settings (1280x1024) went down aproximately from 4000 to 2600. At that time I wasn't aware of PCI-E speed being the reason. Restart didn't resolve the problem but the problem disappeared after the notebook was off for a long time.

Now the problem seems to be constant. Sometimes after long shut down state the PCI-E speed might be x8 but that's gone if restarted.

I've done over- and underclocking with RivaTuner witch might contribute to the problem. I've also made some modifications, including buying ZM-NC1000, changing thermal paste to CPU and GPU and drilling holes in the bottom of the case (where the internal GPU heatsink is beneath), to fight G1S' heat issues (so it's goodbye for warranty).

I've tried several GPU drivers, reinstalled Vista (32bit) and currently running newest stock drivers available.

I wonder if RivaTuner could have messed Video BIOS. I've checked if it's possible to flash it but every nvflash version from 5.31 to 5.72 seems to say:
"EEPROM ID (20,00) : Unknown
ERROR: Supported EEPROM not found"

I haven't bothered trying every single version of nvflash because the documents (from 5.31 to 5.72) don't include "Dev=(20,00)" ("Dev=(20,05)" being to closest one). I wonder if I'm correct about the relationship between "EEPROM ID (20,00)" and "Dev=(20,05)".

NVidia control panel shows Video BIOS version as 60.84.41.00.12. I've checked GPU information with NVidia control panel, GPU-Z and Everest. Is it a concern that neither nvflash, GPU-Z nor NiBiTor can read VBIOS correctly on G1S? Everything seems to be fine but that PCI-E speed. What could be the next move?

 

Try to revert to the original drivers that came with your machine. At least you will know its a problem that can or can't be fixed with default settings etc.

 

I actually reinstalled Vista one time with only drivers from the driver CD that came with the notebook. It didn't resolve the problem which was confirmed by GPU-Z information and 3DMark06 tests.

Thanks for quick reply thought. Any ideas are welcome.

 

I tried this: http://forum.notebookreview.com/showthread.php?t=261929 but only "PerfLevelSrc" can be found in registry and that's "2222". So PowerMizer is not installed?

GPU-Z shows all the time:

GPU Core Clock: 475 MHz​

GPU Memory Clock: 700 MHz​

In fact I noticed clocks being stuck like this when using RivaTuner before any Vista reinstallation but thought aero wanted all the power and it's OK

Can PowerMizer affect PCI-E bus? If it could, it's definitely worth trying to get it working but how? And still if anyone has flashed successfully G1S' VBIOS, please tell how.

 

This one's solved by RMA. There was something wrong with motherboard.