Re: New PC build will not post or give video output

I agree, it's sure sounding like a bad MB.

"Chris Hill" <chill_mapsfree_000@xxxxxxxxxxxxxx> wrote in message
news:gqlv22pra1ei95siq0v7uv9d8ddgp7m5jm@xxxxxxxxxx
On Sun, 02 Apr 2006 13:18:14 GMT, "Martin C" <MartinC@xxxxxxxxxxx>
wrote:

Further update.
I have checked the CMOS jumpers and they are correct.
I have tried the motherboard outside of the case (resting on cardboard)
with
only the CPU and fans powered. I did not even have any memory or video
card
present. I had the lead to the speaker attached.
I still get no POST.

I checked the power supply on one of the Molex connectors and found that I
am getting the following voltages (with no load)
5.02V on the 5V line
12.42V on the 12V line.

Should the 12V line be that high? Is that a problem?

One other point of possible interest I should note:
With the PC turned on all the fans run and relevant leds are lit. When I
hold in the power switch for more than 4 secs, the front power led on the
case goes out (implying that the system is turned off?) but all the fans
(CPU, Case, PSU etc) are still running. The only way I can stop these is
to
turn off the PSU itself with its own switch at the back. Does this
indicate
a problem with the PSU or something else.

I'm going to have to guess mainboard. Really is no way to be
absolutely sure except by swapping parts.


.

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