(E-Mail Removed) wrote:
> I recently got this from ebay:
> -----------------------------------------------------
> Dell Optiplex GX1/GX110/GX150/GX200 System Board and PIII Processor
> This System Board has been pre-tested and pulled from a working Dell
> Optiplex 110 computer. It includes an Intel 866 MHZ Pentium III
> Processor and heat sink.
> -----------------------------------------------------
>
> I hooked up the 2 power connectors, the "Panel" connector, and my
> monitor. Then I flipped the switch.
>
> Nothing happened. I expected to see some errors on my monitor about
> missing an HD, etc. Any ideas?
The Dell Optiplex is an ATX *type" of computer, but uses a proprietary
type PSU that has vastly different pinouts than does a standard ATX PSU.
So not only must you activate the PS_ON circuit, but the +5v, +12v,
etc., outputs are NOT wired per ATX specification. A normally wired ATX
PSU will not work with your Optiplex MB.