You should only update the BIOS, if you're were having problems with a previous one. Flashing to an older BIOS might fix it, but first reformat Windows, and see if that helps. I sure, it should.
So far no Blue Screens At all.. bcaz may be I had not flashed correct bios.
So it'll be a good idea if someone analyzes memory dump and give me a solution.
and I also have a memory.dmp file in Windows which is over 1 Gib.
thanks.
