So ~3 weeks ago I upgraded finally... from an old pos with the speed of an abacus.
Asus P5K (vanilla)
E8400
NCP 4x2GB 800MHz DDR2
Radeon HD4830 w/ Accelero S1 (2nd hand)
From old PC
Akasa somethingsomething 460W
Samsung HD753LJ
Some Samsung Writemaster DVDRW (IDE)
It worked fine for 2 weeks, but when it was on continuously for 4 days or so on christmas week. It started to act up after that. What it does is pretty much the following:
In the morning I finally got it started, when I left to work I shut it down and left it to standby (not hibernate/standby, but fully shutdown standby, i.e. mains only on).
So I get back from work press power button, all fans, hd, dvd etc turns on, but no power on USB keyboard or USB cardreader and no video.
Shutdown with power button pressed 5sec. Switch mains off Pull the plug, switch mains on, leave it for 5mins. Mains off, plug the plug(or w/e the term). Mains on from the PSU switch, the MB power led switches on for ~1sec and switches off. I leave it be for 30min. Mains off and on, same thing led goes on and off. Try again, mains off/on. Led stays on, power button-> same thing when I started, fans start, no POST, no video.
Pull the plug, leave mains on, pull the network cable, repeat above.
Still no luck.
Edit: Repeat above couple times, then I remember something about someone needing and DVI->VGA adapter to succesfully boot their P5K. Pulled the DVI cable, instantly it started.... first time I tried that..
When I finally get it booted, it's rock solid stable. I'm just wondering is it the PSU or is it the MB, it was refurbished... I'd put the blame on it, but it could be the PSU too. Which it could be?