|Hello all, I built a computer about three months ago and have recently been having an issue that strikes me as very odd.|
My configuration is as follows:
ASRock M3A770DE Socket AM3 motherboard
AMD Phenom II x4 965 BE 3.4 GHz (rev. c3 125w TDP) 1.4v CPU VCore
4 GB (2x2GB) G.Skill DDR3-1333MHz 7-7-7-21-28 1.5v RAM
Nvidia GeForce GTX 460 1 GB (reference card made by Nvidia directly)
1xWD Caviar 250GB HDD
1xWD Caviar Black 1TB HDD
Antec Three Hundred Case
Corsair 700w SLi Certified Single 12v rail PSU
My issue is that my motherboard will not post sometimes, or will post and boot but then freeze (no BSOD, no error message, it just locks up and I have to manually power cycle it), and when I try to reboot after it freezes it will not post until I let it sit without any power for awhile. This only occurs when the RAM is configured to run in dual channel mode or single channel mode using only channel A. I ran memtest when I could get it to post without any errors and the RAM works fine in an almost identical system (same motherboard and processor) without any issues, so I know that the RAM is fine. The CPU also works in that system without issues.
So to troubleshoot this issue I followed a hardware failure guide posted on Tom's Hardware.One step was to breadboard my system. I did this, and it booted perfectly fine, did not freeze or have any issues running my RAM in dual channel mode or single channel mode in channel A only. I inspected the motherboard mounting holes and found that the screw hole nearest my channel A 1 RAM slot does not have a complete copper seating. I think I may have overtightened the screw, ripping part of that copper seating off, so I removed the mount that sits under that spot, put everything back together minus that one mount, and booted my system, It worked fine for a few days, I was able to reinstall Windows without any issues and played Bad Company 2 last night for about 3 or 4 hours. Before I went to bed I started Windows Update since I was on a fresh OS install, and let it run overnight, and when I woke up I noticed that my monitor was off, and I could not get the computer to wake up from sleep mode. I manually power cycled the computer and it posted to windows, but froze 16% into configuring updates. I power cycled and now it's back to not posting at all. I will breadboard it again tonight to see if it still boots up when outside of the case. If it does, what else could be going on?