Question OCCT errors when running at default (XMP off) but not when XMP is enabled

Oct 22, 2022
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Hi,

I did some tests using OCCT. I let the CPU test run for a very short time, maybe 3 minutes each.

RAM at 2133 (XMP off)
-> immediately starts throwing "errors on physical core x y z"

RAM at 3200 (XMP on)
-> no errors

Then a full pass using Intel Processor Diagnostic Tool (XMP on/off)
-> no errors

Any ideas what that means?

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Hardware:
Intel 9900K
ASUS Z390-F Gaming (BIOS 2004 is up to date)
iGPU UHD 630
Corsair Vengeance LPX 64Gb kit (CMK64GX4M2E3200C16)
PSU BeQuiet (can't remember/see what model exactly because of the case)
 
Oct 22, 2022
45
0
30
Update: i flashed the latest BIOS again and it seems to have fixed it. OCCT doesn't throw CPU errors after running for a few seconds when XMP is disabled now. I wonder if the BIOS got corrupted because the computer wasn't powered on for 3-4 months.