Apologies for breaking rules by not posting BSOD files, but I can't get to them! Hoping you can still help to some extent.
My father's PC is quite new, with Intel i5200 chip, 4Gb RAM and ASUS motherboard with onboard graphics. About a month ago he experienced random BSODs, he is not aware of any particular program causing them, and the dump files I have seen are all different.
BSODs increased in frequency, so I said I'd take a look at it, reinstall Windows, whatever. Anyway, it took me hours to back up his photos between crashes, and then I found I couldn't boot from HDD or WIn 7 DVD (full retail disk). I get to the Windows did not start successfully, run Repair screen, but it doesn't run it. Likewise from the DVD, it loads the initial files, then crashes to the Repair screen, only to not run it.
Likely culprits? HDD? RAM or PSU?
It's in warranty, but I'd like a steer on possible causes before he sends it back, you can never know too much!
Thanks for any help you can offer,