Hardware problem: Dead desktop

[Martin Visser]

I agree with Leslie, most likely to be a mobo, though a power supply
that has blown a capacitor or diode also may not give enough juice and
hence not power up the CPU enough. If you have a voltmeter you can
check for 12V and 5V on the drive connectors. There are other voltages
like 3.3 and -12V on the motherboard connector that can check as
well). A failed CPU fan will not stop the machine booting (but it will
shutdown in a minute or so.

You can sometime get a scambled BIOS setting, as well but you have
tried removed the battery. (There often is a jumper setting as well
that clears the BIOS settings, but you have effectively done the same
thing).

Googling suggest this is a 478 board though there was a 775 variant.
If it a 478 board, you may have to look for one second hand.

I had similar symptoms for a 2 year old board, and replaced it with a
new one (775 though) and all was good.


On Nov 11, 2007 12:39 AM, Leslie Gossner <clownius at gossner.id.au> wrote:
> It should take a minute or two for a CPU to go into thermal shutdown
> after boot. I made the mistake of not plugging in my CPU fan once and it
> still posted and everything. Should get a post and beep at least.
> Anytime you get less than that and your PSU is working it screams dead
> motherboard or CPU but usually motherboard as CPU's very rarely die.
> You can still check it wont hurt byut i doubt its the issue.
> declan wrote:
> > I'd suggest that you check the CPU fan.  Check that its seated properly
> > on the motherboard.  Then ensure that its spinning freely.
> >
> >
>
>
>
> --
> ubuntu-au mailing list
> ubuntu-au at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-au
>



-- 
Regards, Martin

Martin Visser