Hello, first post here.
I'm trying to resurrect above MB, after a long time idle. The problem: when I turn it on, fans and leds turn on, but it doesn't boot - no beep. After a while (something between 2 and 60 minutes), most of the time, it beeps and boots normally - but sometimes I keep waiting till give up.
When it does boot, everything seems to be absolutely normal.
More: after turning it off, when I turn it on, nothing happens. I have to turn the psu switch off, back on, and then it does turn on fans and leds.
I have already cleaned everything I could, replaced MB battery (which I measured and was ok), updated bios, cleared cmos, tested RAM with memtest86 (passed), tested psu (the paperclip test, ok), cleaned and applied new thermal paste to cpu.
No PCI cards (onboard video).
What I really don't understand is the apparent stability after finally booting.
Any suggestions? Do I just need to cope with the MB passing away? Would it make sense to test the processor? How do I do it?
Thanks for any input.
The system:
CPU AMD Phenom II X4 945
MB GA-MA785GM-US2H rev. 1.0
RAM 2x G.Skill 2GB F2-8500CL5-2GBPK
PSU Corsair VX450
BIOS version F12f 07/27/2012 (latest)
win 7