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ACara5
Beginner
612 Views

After HP Z820 BIOS Update Windows 10 only sees 1 core instead of all 6

I upgraded the BIOS on an HP Z820 Workstation that is running Windows 10 on two Xeon E5-2630 CPUs. After the update, windows will only recognize one core. I updated every driver in the machine, built a new instance of Windows on a clean drive, and tried every possible variation of BIOS settings

 

After working on this for four days I see that buried in the BIOS release notes is a notation that the update also updates the microcode in the CPUs. YIPES!

 

Could this be the source of the problem? Can I recover the mirocode or load in a current version? Where would I look for the microcode?

 

Thanks for any help folks!

 

Art

0 Kudos
5 Replies
AlHill
Super User
174 Views

You need to ask HP about THEIR BIOS.

 

Doc

 

SergioS_Intel
Moderator
174 Views

Hello ACara5, You do recommend performing a BIOS recovery on your system. Please contact HP for further information. Best regards, Sergio S. Intel Customer Support Technician Under Contract to Intel Corporation
SergioS_Intel
Moderator
174 Views

Hello ACara5, I am following your question and would like to know if you need more assistance. Best regards, Sergio S. Intel Customer Support Technician Under Contract to Intel Corporation
ACara5
Beginner
174 Views

Hi Sergio:

 

Wellllll, I’m ok and don’t need any more help. Before I received your initial guidance I decided to try a different processor. Bottom line, I fat-fingered the CPU socket, bending some of the pins, essentially destroying the motherboard. So much for solving the problem.

 

BTW - the new CPU also showed only one core, so you were correct, the problem was elsewhere in the firmware.

 

I just bought a new computer. The ultimate solution!

 

😂😂😂😂😂

 

Thanks for you help and advice

 

Art

SergioS_Intel
Moderator
174 Views

Hello ACara5, Feel free to contact us in case you need more help. Best regards, Sergio S. Intel Customer Support Technician Under Contract to Intel Corporation