Computer Question : Auto shutoff ?

[ponster]

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I'm just building my new computer and have hit a snag.

I've inserted the CPU (AMD64 3200), installed a Zalman CPU fan and put the lot into the case (Antec 350watt)

The problam is that when I switch on the power supply the LED on the board lights up, but when I switch on the machine, the power supply dies after about 1 second. I can hear the hard drive turning and see the CPU fan spinning during this second, but then everything stops.

I've plugged everything out (hard drive/CD ROM) and the memory is fine.

The contact is fine between the fan and the processor.

It looks as though the motherboard (ASUS) is telling the power to switch off but I have no idea as to why?

Any help here?

 

[EricB]

bad power supply or A short in the mobo

 

[ponster]

Yes sounds right. Both just out of their boxes today so it seemed kind of strange to have that type of problem.

I'll try another PSU.

 

[silence782]

Definately a bad powersupply or mobo. Is all your parts under waranty?