5950x extreamly low L3 cache speed on 3801 BIOS

[Rimc_LT]

I dont know then it started but today I saw that in AID64 my L3 speed is not normal does anyone have same.

[RedSector73]

Rimc_LT wrote:
It might be Windows 11 problem i think.

Confirmed bug in Windows 11 effecting ALL Ryzen CPU's

Measured and functional L3 cache latency may increase by ~3X.
https://www.amd.com/en/support/kb/faq/pa-400

[ManMountain]

New AMD chipset drivers (Windows 11 and 10)
https://www.amd.com/en/support/chipsets/amd-socket-am4/x570


MS KB5006746 update (Windows 11 Level 3 cache patch)
https://www.catalog.update.microsoft.com/Search.aspx?q=KB5006746

[Silent_Scone]

Hello,

Can confirm the above MS update and chipset driver drastically improves L3 cache performance on Windows 11.

[RedSector73]

Silent Scone@ROG wrote:
Hello,

Can confirm the above MS update and chipset driver drastically improves L3 cache performance on Windows 11.

Agreed.