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CODE 91: Check CPU - What does it mean

StudioJ
Level 7

‎08-27-2017 11:40 AM - last edited on ‎03-05-2024 10:03 PM by Community Admin

Hi there,

ASUS Zenith x399
Threadripper 1950X
32GB Corsair Dominator Platinum
Samsung EVO 960 1TB
1080 TI

I'm seeing a "code 91: check CPU"
What does this mean? Is there a list of these codes somewhere?
I'm not noticing any performance issues. Everything is running fine. Temps are good. But that code gives me pause, what is it?

Thanks
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Mikan02
Level 7

‎08-27-2017 02:41 PM

Unless you tried already, did you try the "Clear CMOS" button on the back IO panel to reset bios?.
Then choose load optimized defaults in UEFI bios and save it.
Add your own settings again and check if anything is different.

Also make sure to have latest firmware for the OLED/Aura. First link in this post.
https://rog.asus.com/forum/showthread.php?95413-Zenith-Extreme-Beta-UEFI-9910-9906-9980-9964
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