I don't fully understand, but would a Dell power supply help?
Looks like Dell parts are available here.

http://store.megasystemsltd.com/gx280tower.html


>
>On 3/19/09, Anapro <[log in to unmask]> wrote:
>>
>> I may have really goofed with the Dell motherboard. At least some Dell
>> boards use a non-standard power connector so that the board and power
>> supply
>> may burn up if connected - even though the connectors fit. Can anyone
>> verify
>> that this is the case for an Optiplex GX280 board? I am researching
>> further,
>> but any definitive input from the list would be appreciated.
>>
>> Peter Shkabara
>> ---------------------------------------------------

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