I had exactly this problem with a new motherboard and
at the time was unaware of this extra 4 pin 12 volt
connector that is required to power the CPU.
Are you sure you have plugged this connector in?
Rick
--- Maccy wrote:
>
>
> Hi folks,
>
> I'm attempting to upgrade a system by replacing the
> current mobo (Athlon
> 700) with an ABIT board and Sempron CPU.
>
> PSU was replaced for one with a 12V connector and
> RAM replaced with PC2700
> DDR DIMMS.
>
> Trouble is the system fires (CPU fan spins) up for
> about 30 seconds and
> then powers straight off.
>
> I've double checked component compatibility, and
> tried alternative PSUs
> and RAM. I've also tried with the bare mobo out of
> the case sitting flat
> on an anti-static bag.
>
> Any ideas? Faulty mobo, or have I missed something?
>
> Many TIA
>
> Maccy
No Bill G on this PC!
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