a7n8x-x no POST after short powerdown

Archived from groups: alt.comp.periphs.mainboard.asus (More info?)

Arjan <arjanl2000_removethisforseriousmail@yahoo.com> wrote in message news:<40c60339$0$3680$3a628fcd@reader2.nntp.hccnet.nl>...
> Hi
>
> I've got an a7n8x-x mobo with 512 MB mem (333 Mhz)
> and a 2500+ CPU
> Normally it boots OK, but after a powerdown it doesn't
> post at all, (HD led and power led light up, but keyboard
> leds don't, it doesn't even beep)
> The only remedy seems to be to unplug the powerplug from
> the wall socket and leave it out for about 5 minutes. After
> that it boots again normally.
> When it is not unplugged it might take more that an hour
> before it is willing to boot again.
>
> A (hard) reset instead of a powerdown does't cause this
> problem, but it doesn't help when it is stuck before POST,
> then only unplugging seems to help.
>
> Another weird thing is that the the green led of the
> NEC 2500 DVD+RW is always on when the power is down.
> (don't know if this is supposed to, guess not)
>
> At the store they told me they already replaced the PSU,
> but it doesn't make any difference.
>
> regards,
> Arjan

I had a similar problem with an ABIT MOBO. I don't recall that it was
a power supply problem, but it might be. See if you can power on and
off in DOS with the power switch and also do CTL-ALT-DEL & Hard RESET
to restart. If you can, I'd suspect Windows.

arnie