I have an ASRock 775i65G motherboard, and it's taking about 10 seconds to POST. Specifically between powering up and activating the graphics card! I bought a second board in the event the other one was faulty, but it exhibits the same behaviour. I'm using the following hardware:
E6600 Core 2 Duo CPU + Zalman CNPS 9500-AT cooler
2x512MB Corsair TwinX XMS PC3200 DDR memory modules
Corsair HX520W power supply
2 Western Digital hard disk drives (WD800JB + WD3200JB)
2 Plextor Optical drives (16x10x40A + PX-760A)
Terratec Phase 22 PCI audio interface
Unibrain Fireblue Firewire PCI interface + Hercules 16/12FW firewire audio interface
Windows XP Home OEM.
The first board I bought also would, on some occasions, not POST and just shut down by itself! I was originally using an Akasa Paxpower 400W PSU, and assumed it wasn't enough. So the Corsair one went in... with the same results! So that prompted me to try a second board (I'll RMA the other one at some point, because it's clearly faulty), but whilst I don't seem to get the sudden shutting down, it still takes damned ages to POST.
I'm positive that the RAM is fine, and how likely is it to be the CPU when I've been using the PC for hours and hours at a time with no other fault?
P.S. Posted in the Scan forum because I bought both boards from them.