Compaq Presario SR5123WM PC: Installed the NEW POWER PC PSU does not illuminate

After that through a series of troubleshooting after my PC could not start then would be closed to half way through the startup cycle, I determined it must be a faulty power supply.

I ordered the exact same PSU for my PC.

Today, I received the new unit and went to reconnect everything, clean the inside well of dust and debry in the hopes that I could get my PC back tonight.

Well, it always turns out that nothing is ever simple with computers.

I installed the power supply cord and noticed the projection of green light at the back of the PC, but when I turn on the unit the green light turns off.  Is there a significance why this would happen?

Fans never got on, nothing, nada... it means the new PSU is defective, as well?  How can I test to see if it works or not?

Should I replace the CMOS?

I appreciate any help or help on this that I don't know where to go from here.

Thank you.

p.s. I studied and went through this page for the letter http://support.hp.com/in-en/document/c01684432

Dnorm58, welcome to the forum.

If you are certain that all connections are well done, here's a guide to help you troubleshoot the power supply (PSU).  In addition, you can test the memory to see if it has failed.  You must remove all modules and replace them one at a time and start.  The only module must be installed in the location closest to the processor.

Tags: HP Desktops

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