On Wed, 14 Mar 2007 17:06:19 -0500, "The Browns"
<garyjbrown@charter.net> wrote:

>Hi,
>
>My PC had been refusing to shut off. Now it won't power up.
>Can someone suggest a possible cause? Motherboard? Power
>supply?
>
>The past four times I tried to shut down my PC it wouldn't turn
>off. Holding the power button produced a click, a drop in power
>(noise) for about half a second then it would start to power up
>again. Pulling the plug or turning off the UPS was the only way
>to shut it off.
>
>This morning it refused to power up. It gets so far then appears to
>be doing a reset. It doesn't get far enough to get into the BIOS.
>
>I unplugged the Disk and CD/DVD drives to reduce load (and
>protect them), then reseated power and power control connectors.
>Those had no effect.
>
>The PC is homebuilt with an ASUS A7N8X Deluxe MB, about
>3 1/2 years old, the PS is an Antec SmartPower 350, maybe a year
>old. The box is generic.
>
>Any help appreciated.
>
>Thanks,
>Gary
>

You didn't tell us enough about the hardware, the rest of
the system, but I would suspect the power supply has failing
capacitors and look there first.