PC troubleshooting sanity check
So, got my new components and assembled them today. The system won't power up. Here are the symptoms and what I did.
First, everything attached and all power cables and connectors hooked up. Attached power cord and switched ps to 1. Mobo LED did not light. Pushing power button on case gave no change.
Flipped 2-pin connector for power switch. No effect. Put back to original orientation.
Pulled 24-pin power block and plugged into 20-pin power tester. All lights green. Plugged in 4 pin block - no result. Same for other 4-pin block. I think the 4 pin tester is dead.
With the 20 pin connecter hooked up to the tester, pushed power button on chassis. Fans turn and disks spin. But the cpu fan did not spin, I don't think. Powered off and unplugged.
Started pulling components out of the system. Stripped down to mobo, cpu and memory. Plug in system and now the mobo LED lights. But power switch does not work.
Pulled memory. Still no go.
Replaced power supply with new one. Same results.
I think I'm looking at a bad mobo. Any ideas? Suggestions for safely removing the heat sink from the cpu? I'm dreading that.
Thanks for any ideas.