I have a computer i built for my lil bro a while ago almost a year ago, and he started having issues whenever he had to restart his PC, it would post. Also sometimes he couldn't turn it on at all, and either it would freeze up at the memory test screen or the mobo logo screen or it would get a BSOD. So he brought it to me to see if i could fix it.
I reset the CMOS, reset the bios, checked the CPU fans, and the GPU. The PSU seems to be working fine, and the GPU doesnt seem like the problem.
I couldn't get his OS to boot form disk cuz the keyboard wasn't registering unless i let it boot all the way to windows and even then sometimes it didn't. So i hooked up his HDD to my PC and was able to boot form CD an load new version of windows, and everything as working fine. But when i put it back in his case it wouldn't load windows and gave me an error when trying to post.
So i came to the conclusion that his mobo is faulty and we should order him a new one, his old GIGABYTE GA-P35-DS3L is discontinued but a similar version is out. Any input into what the issue might be if you think it isn't the MoBo?