I have a Compaq presario and sold the original power supply to a client for their pc. Now I have a need to use this Compaq. I bought a Compaq 300w power supply (new) from Ebay.
I hooked everything up and can't get anything to the monitor. It shows "no computer signal".
The power supply is an ATX with the additional connector (12V header, a 4 pin connector arranged as a square 2x2) but my motherboard DOES NOT have the outlet for this additional 2x2 square connector.
Is that the culprit? Do I need another power supply that doesn't have this additional connector?