If you use the PSU on/off switch instead of shutting down Windows properly
this can happen.. Click the start button, turn off computer, turn off, turn
off the monitor, wait for the computer to completely power down, then cut the
power or hit the off switch on the PSU or surge protector..
j;-j

"carpathia" wrote:

> Recently, I bought a original Intel 865gbf mobo, Processor P4 2.40A,
> Kingston Memory 512MB, case delux m426n, power supply 550W, Windows XP
> SP1.
>
> The problem is that when I switch on the voltage regulator in order to
> power up the system, it start immediately, without press the power on
> button in the case.
>
> Then I shutdown the system and I can start it normally. (¨Pressing the
> power
> on button).
>
> The problem returns if I switch off the voltage regulator and switch on
> it again.
>
> I suspect that the problem could be in the power supply.
>
> Can somebody orient to me?
>
> Thanks from Colombia.
>
>