|10 May 2012||#1|
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BSOD Switching from Integrated Graphics to nvidia GT520M VGA
3 day ago I bought an ASUS U30S laptop. This laptop has a Core-i5 cpu with a nvidia GT520M graphic card. I've installad a Windows 7 Ultimate 64bit on it.
The problem is that as long as the laptop uses the integrated graphics there are no problems but every time it wants to switch to nvidia graphic card (through nvidia control panel preview section or running Unigine Heavean or disabling integrated graphics) the BSOD appears telling the is a problem with nvlddmkm.sys file; I have attached some of dump files.
Things I do till now but didn't work:
I hope someone can help me.
|My System Specs|
|10 May 2012||#2|
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"It's not a true crash, in the sense that the bluescreen was initiated only because the combination of video driver and video hardware was being unresponsive, and not because of any synchronous processing exception".
Since Vista, the "Timeout Detection and Recovery" (TDR) components of the OS video subsystem have been capable of doing some truly impressive things to try to recover from issues which would have caused earlier OSs like XP to crash.
As a last resort, the TDR subsystem sends the video driver a "please restart yourself now!" command and waits a few seconds.
If there's no response, the OS concludes that the video driver/hardware combo has truly collapsed in a heap, and it fires off that stop 0x116 BSOD.
If playing with video driver versions hasn't helped, make sure the box is not overheating.
Try removing a side panel and aiming a big mains fan straight at the motherboard and GPU.
Run it like that for a few hours or days - long enough to ascertain whether cooler temperatures make a difference.
If so, it might be as simple as dust buildup and subsequently inadequate cooling.
I would download cpu-z and gpu-z (both free) and keep an eye on the video temps
|My System Specs|
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