Update ....
After checking the memory and determining it was good (had the same problem) I went ahead and bought a new hard drive and installed it. Everything worked great for 2 weeks. This morning my computer wouldn't boot and I don't get a POST.
The PSU seems to be working correctly (fan turning and power to the motherboard), the memory is good (based on my test 2 weeks ago), the hard drive is new, and a fresh OS install.
So that leaves the motherboard correct????
The Mobo I have now is ATX, AM2 socket (I have an AMD Athlon 64 X2 5200+ Socket AM2 CPU), with DDR2 (2 Gigs each). My hard drive is a SATA.
So I went shopping for a new Mobo. I couldn't find any with an AM2 socket or DDR2 memory slots. Will an AM2 CPU fit in an AM3 socket? Will DDR2 memory fit in an DDR3 socket? If not, where can I find a motherboard with AM2 and DDR2 sockets?
I found this,
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157274 but I never heard of the company so I'd hesitate to buy it. Just noticed it's a micro ATX so it won't work.
By the way, my current Mobo is a MSI K9N2 SLI Platinum Motherboard.
Advice please and thanks for any help.