Hi, photo from my working motherboard. I hope it helps. Hey Fine People, I just got that bare board and I have the original PSU, however I do not have the Power button and LED. Anyone would care to send the pinout for the Switches and LEDs? Also the FAN connectors are weird and won't accept a …

Hey Fine People, I just got that bare board and I have the original PSU, however I do not have the Power button and LED. Anyone would care to send the pinout for the Switches and LEDs? Also the FAN connectors are weird and won't accept a standard 3 or 4pin Fan (seems Ground is missing if using a …

Onboard: Dual pIII 866/133, i840 NB, 4x256MB rimm pc800-40, radeon 9550 128MB, agp 2x/4x, 120GB ATA 66, u160 scsi, integrated soundmax ac'97. Callahan hello. Tell me you still have this computer - Compaq Professional Workstation AP550?? I am trying to repair my motherboard. Could you help me?? …

Found a possible reason why the motherboard does not start. There are no SMD resistors and capacitors on the back of the motherboard. I need resistor values: R9, R15, R16, R710. I would be grateful for your help.

Today i got another compaq ap550 and while cleaning the PSU, i also take note of the wire, so the PS_ON signal is the white one, and it need to trigger high to power on, to power up the PSU, connect it to the 3.3vsb (purple color) . Hello. You have correctly identified the connector. It only …