My son and I built a new computer on Saturday:

AMD64 3000
Asus K8V Deluxe motherboard
Nvidia 6600GT AGP video card
Antec super Lanboy case
Drives: CD/DVD, 2 Hard drives, floppy.

It seemed to work fine all day. In the evening we went out and it
wouldn't resume from hibernation (or sleep mode, not sure which) when
we came back. We rebooted and it worked for a while. Later we left,
and came back to find a "No signal" sign on the video monitor. The
computer wouldn't reboot.

Today, it won't do anything at all. The little green light on the
motherboard comes on but when we hit the power switch nothing moves:
no CPU fans, no case fans, no beeps, no video, no nothing.

So we tried replacing the power supply (350w) with a power supply we
had around: 400w. Same thing: green light on motherboard, no
response to switch.

Neither power supply whirrs or does anything when plugged in without
anything attached. I assume that's normal.

The only thing we think we did wrong was with the little wires from the
front of the case that terminate in small black connectors: power
switch, reset switch, power LED, HDD LED etc. Reading on the Antec
website tonight it says that the ground is the wire with a little arrow
pointing to it. In each case, that's the colored wire, not the white
or black one. We had put the colored wire on the positive pins on
Saturday. I don't know what the implications are for running it
backwards, if that's what we did. We also had one little set of wires
(yellow-white) which say "LED" which didn't seen to have a home on the
motherboard, so we left that one disconnected.

Anyone have any fixes or ideas? Over the weekend, we can start
switching the case and the motherboards with an old case to try to
localize the problem. If the motherboard shows the green light, does
that mean it's OK? If the processor was fried, I'd at least get fan
action right? If my assumptions are correct, it could just be the
power switch on the outside of the case (I hope).

Any advice on diagnosing the problem would be appreciated.
Thanks,

Richard

Richard wrote:

--
The e-mail address in our reply-to line is reversed in an attempt to
minimize spam. Our true address is of the form che... (AT) prodigy (DOT) net.

Yeah. We did the heatsink very carefully, and the fan was working.
During most of the day I checked temperatures on CPU and it was always
in the 34-37 degree centigrade range.

Looking back over messages in other groups, one possibility may be a
bios failure. So we'll try resetting the bios tonight.

Richard

Eureka! We fixed the problem by clearing the CMOS Real Time Clock
(Clear RTC RAM). The procedure is on page 2-18 of the A8V manual.
Great sighs of relief.

Richard