wow.. awesome thread
I was actually looking for LGA 1155 motherboards for sale when I stumbled upon this

My board is MSI P67A GD55 (B3)
At first I kept getting a few BSOD and lock ups - machine check exception and 1 more I can't remember. Most of the time it happened when a video was running or watching youtube, which made me think it is the GPU.

After trying to fix it at software level (even in safe mode it freezed!) and failed I moved to the hardware level, running memtest, removing the ram and test 1 stick at a time and all that.. at this point I haven't tried changing the GPU.
So I reformatted the OS, from Win 7 Pro to Win 10 Pro, installed the latest updates.
It seemed to work at first, managed to run youtube for hours with no crash/BSOD
Then it happened again.
So I switched the GPU, from a GTS450 to a GTX 1050.
Again, system suddenly freezed (with that loud sound) when playing my private videos (MTS files). It happened again and again during my tests. Sometimes the system even freeze when idle... some with BSOD, some with no BSOD just hard freeze have to force turn off the pc.


Next step I removed the CMOS battery to reset to defaults.
Big mistake, the system even freeze in the UEFI/BIOS page! Even with all disks unplugged.
I even tried with another CMOS battery.
Sometimes cannot even enter BIOS.
Means now the system totally cannot boot, and the BIOS keeps freezing before I can even configure properly... which made me conclude that the problem is indeed the motherboard.

From your experience if the system freeze in BIOS screen, what could the problem be?

Do I have to send the whole system to you or just the motherboard?

What's the price range like to fix motherboard?

Thanks

awesome bro, will contact you when I'm ready to send the board.. but seriously, just send the board? you have a lot of spare processors lying around for troubleshooting purpose eh?