[SOLVED] Upgraded CPU with errors and wrong core detection.

[Tony_z420]

Hello everyone. My first post.
I have an HP Z420 and it came with a XEON E5-1620v2 4 core 8 threads. I just upgraded with an E5-1580v2 8 core 16 threads and a hp liquid CPU cooler for the z420. When I boot I get code 513 front chassis fan not detected. I don't have one. After I boot. I go to the device manager and it shows all 16 threads. When I load task manager or other software is shows 4 cores. Please advise. I went to msconfig and it has 8 cores selected. The task manager is not showing either.

 

[Unolocogringo]

In ms config you should be showing 16 cores.
Either change it to 16 or remove the check mark and let windows decide.