MSI gx640 problem, windows goes into BSOD is power is on.

Hello everyone,
just a few moments ago i run into a problem with my laptop.
I all started when I tried to change the setting on gpu and gddr in amd overclocking utility, after i set them to 200/300 my screen suddenly became full of artifacts, than BSOD appeared and computer restarted.
When it restarted artifacts persisted, so I uninstalled the AMD overdrive tool hoping that would fix the problem, however It didn't. I pluged in the powe cord and BSOD appeared withing 30 sec.

I noticed that, since laptop is working when battery is on, I changed settings CCC in powerplay section to maximize battery life from maximize performance and system appear to become stable.


So I wonder, have anyone of you experienced simmilar type of behaviour?
If yes how did u fix it.

P.S I have performed copper shim mode recently, but system was working fine and temperatures did not exceed more than 90C in furmark.
( all three parameters memory, shader and DisIo were fine.

Thinking that Something went wrong with cooling, I removed thermal pads from ram and did repaste, but looks like the system is still unstable?

Any ideas how I can fix it?
any help would be greatly appretiated.
thank you.


Just a moment ago I ran 3dmark Vantage and the screen is full of artifacts, howeve the temperatures stay in 70C range. Any ideas?

I have 2 theories, its either amd drivers got corrupted, so I am going to uninstall them

b) video card is dying or power supply is defective.

 

If it's drivers, I would try a system restore, that might help.

 

Just removed Catalyst Control center and run 3dmark vantage.
Artifacts are gone, max temperature is around 81.5 at memory sensor.