Around oct last year i was getting a CPUboot led on the motherboard, this would cause the pc to stall on boot for a few mins then rectify itself and work fine. Eventually it wouldnt boot at all. I bought a new AM3+ motherboard on the off chance it might work, it didnt so was going to RMA the cpu.
my gf's pc. Just before christmas she said it made a screeching noise whilst i was out, she said it booted fine, turned it off and when i went to turn it on, nothing. i transfered my pc1 psu to hers, it started up but no display and the cpu fan was revving up and slowing down.
i ordered her another cpu (phenom ii 965) as id had the one in there for about 4 years. tried it out last night using.
pc1 new motherboard
both graphics card (pc1/pc2 560ti/gtx460 respectively)
any ideas on what to try next, im against paying a few hundred £ for a hardware diagnosis as at this point i have most of a new build.
Should be able to try a friends gpu later on, could a faulty psu from pc1 cause both of these problems