Official MSI P7N Diamond (780i) Discussion/Review/Overclock/Guide/BIOS Thread

[FedericoUY]

Hi. I desperately need help!. My motherboard does not show any signs of life. I was overclocking my q9450 and reached 3500mhz (1750fsb), so I was happy with those values (1800fsb were a little problematic to reach). Had my system 2 days running with those specs on 1.2 official bios. Tried out p07 bios with no better results, and then tried 1.2b3 bios. Right away put my system just how was previously on 1.2 bios (@ 3500), booted to windows... made a short test with prime95, and started to play Call of Duty 4 online. 5 minutes later I had a freeze on call of duty 4, and the system never posted again. My first thought was a cpu problem (altough the temperature was correct), so I went to a friend's house to verify it, and it wasn't, my cpu It's ok. Tried different memory kits, mine (dominators) plus (super talent pc6400), other CPU (Pentium D 915), other VGA's (8800GTS, 8800Ultra, 7300GS). Nothing. I removed the mobo from the case and made all those test's with nothing more than the cpu, 1 memory and vga. Also tried another PSU. After all that I put a official bios on a diskette and renamed to AMIBOOT.ROM, started and hold ctrl+home, the floppy won't read it. Any suggestions? Thank you in advance.

Edit: of course I had removed battery and cleared cmos lots of times.