A7N8X almost dead?

[Guest]

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

Hi group,

I'm having bad problems with my A7N8X Deluxe.

The system shuts itself down a few seconds after you turn it on.
Up till now the system has been rock-solid.

I've been away on holiday for three weeks, but the computer ran fine
for several hours the day before it crashed. The day it crashed, it
had been on for a few hours, and then turned off for an hour or two.
When turning it on after that, it crashed.

I have tried some different things:

- Running the system with only gfx-card, CPU and one block of RAM
installed, and no drives - didn't help.

- Changing the PSU - didn't help.

- Taking everything out of the case and putting it back in, checking
for bad contact in sockets, loose plugs, you name it - didn't do any
difference.

The BIOS speech report doesn't say anything.

As a last try, I started up the motherboard with no GFX-card, CPU or
RAM - just the bare motherboard.

Then the voice has time to say that the CPU is missing - it says it
two full times, and the third time it starts, but dies by the second
or third word in the sentence. It doesn't die at the exact same spot
each time - there is a word more or less spoken from try to try.

It doesn't help to unplug the sound.

If anyone has any ideas what's wrong, I would be very glad to hear
them!

Mads Hansen

 

[Guest]

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

maze@cheerful.com (Mads Hansen) wrote in message news:<dab15284.0407150745.47232e30@posting.google.com>...
> Hi group,
>
> I'm having bad problems with my A7N8X Deluxe.
>
> The system shuts itself down a few seconds after you turn it on.
> Up till now the system has been rock-solid.
>
> I've been away on holiday for three weeks, but the computer ran fine
> for several hours the day before it crashed. The day it crashed, it
> had been on for a few hours, and then turned off for an hour or two.
> When turning it on after that, it crashed.
>
> I have tried some different things:
>
> - Running the system with only gfx-card, CPU and one block of RAM
> installed, and no drives - didn't help.
>
> - Changing the PSU - didn't help.
>
> - Taking everything out of the case and putting it back in, checking
> for bad contact in sockets, loose plugs, you name it - didn't do any
> difference.
>
> The BIOS speech report doesn't say anything.
>
> As a last try, I started up the motherboard with no GFX-card, CPU or
> RAM - just the bare motherboard.
>
> Then the voice has time to say that the CPU is missing - it says it
> two full times, and the third time it starts, but dies by the second
> or third word in the sentence. It doesn't die at the exact same spot
> each time - there is a word more or less spoken from try to try.
>
> It doesn't help to unplug the sound.
>
> If anyone has any ideas what's wrong, I would be very glad to hear
> them!
>
> Mads Hansen

About two years ago there was a lot of problems with motherboards that
used power supply capacitors from one particular manufacturer in
Taiwan. The symptoms that you are describing are similar to the
problems that others were seeing. If one of the filter capacitors on
your motherboard is beginning to go, it would explain what you are
describing. You can do a visual check and look for leakage around the
caps or bulging and swelling. If that is the case, then you can order
a replacement kit from Homie. Look up Capman on the Abit newsgroup.
He's repaired hundreds of Abit boards.

Another possibility is that your fan tachometer, or the circuit that
reads it, is dying. You could try replacing the fan.

arnie

 

[Guest]

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

> Based on the testing you've already done, I'd be preparing to
> RMA. A stuck power switch is the only other thing worth testing
> for (by removing it, and using another switch, like the
> momentary contact of a screwdriver tip).
>
> HTH,
> Paul

Thanks for your suggestions.
I tried shorting the power connectors, and the system starts up, but
shuts off again, as before.

I have also tried removing the battery and clearing CMOS, didn't help.

So I'm off to buy a new MB now - will deliver this one back, if I can
find the invoice, but can't wait for a replacement to arrive.


Thanks again,

Mads Hansen