OK, so, I'm not in the same city as my brah, so I cannot have a look at his computer to try and fix it, and besides which, he's pretty damn good with computers as well, so I doubt I could do much that he hasn't already done.
Problem: His computer won't turn on; won't even post.
He gets NO beeps. His fans do work, which suggests the motherboard is getting power, but he says that one of this molex (the usual 4-pin molex) fan isn't spinning, which suggests a problem with the PSU, however, he has tried another 400w PSU and says the PC still won't turn on. His rig has been working for quite some time without any problems, although he did mention (I wish he has said this before, so I could tell him to replace the PSU.
) that his PSU would sometimes "cut out"; not quite sure of the specifics.
This is a computer built by someone with several years of hardware experience, with mostly brand new parts. I suggested to him that he unplugs EVERTHING but the motherboard and CPU, then plugs them in one by one to find what might be causing a problem, but sadly he's already tried this, and the PC still wouldn't do anything, even with just the motherboard and CPU.
PLEASE any help would be appreciated. He loves that PC, and is really gutted about it going kaput.
Any diagnostic measures you can suggest that he or I have overlooked, please suggest away.