Re: The thunder storm broke my media pc...

[Georgia Thomson <georgia@xxxxxxxxxxx>]

take the bios batery out for a few minutes, i had a similar problem
recently and clearing the cmos with the jumper didnt help, but
removing the battery totally for a bit helped.


G
On 24 Jul 2006, at 09:22, Simon Ryley wrote:

> Hello all,
>
> Had a lovely thunder storm in the Midlands on Saturday night, which
> caused a power cut in our area overnight.
>
> The following morning my media pc refused to turn on. It's usually in
> S3 standby, and a quick prod of the power button wakes it up so I can
> watch Freeview through its tuner cards. Even unplugging the power
> lead,
> leaving it 5 minutes and plugging it back it failed to wake up. (Which
> it should do, as the BIOS is set to boot the machine automatically
> after
> a power failure)
>
> Last night I had a chance to look at it.
> The ATX power supply in the machine is providing some juice, as the
> two
> red leds on the back of my freeview cards turn on when the PC is
> plugged
> in (as they should)
> The power switch checked out ok with a continuity test across the pins
> on the motherboard.
> Following a google on power supply testing, I shorted out the green
> and
> a black wire on the 20 pin power connector, and everything turned on.
> It booted ok, and was perfectly happy. Until I unplugged it to put it
> back by the TV. When it refused to turn on again (After I had put all
> the covers back on as well!)
> The only way I could make it wake up was to short out the green and
> black wire again.
>
> I did some more testing, and everything works ok, it will reboot,
> standby etc as long as the power cable is not removed then plugged
> back
> in. If it is, I can only start the pc by shorting out pins in the
> power
> connector.
>
> Obviously something is wrong, but I don't know where to go next. Is it
> likely to be the motherboard or the power supply? The power supply
> is a
> custom Antec one to fit the case, so its not a simple job to
> replace it
> with another standard ATX power supply.
>
> Can anyone advise any further testing before I start buying new
> components.
>
> TIA,
>
> Simon
>
>
>



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