Ryzen clocks locked on startup

This is the second time it’s happened. On resume from hibernation, my system feels sluggish. Once Afterburner finally starts up I see my cpu is locked to 553Mhz.
image

Task manager Shows a similar story.

Ryzen master doesn’t show anything off either.

The first time this happened threads 8-11 were running at 4.2Ghz, 6 and 7 running at ~2Ghz with threads 0-5 seemingly capped at ~500Mhz.
image
This last image was taken while running X264 handbrake rendering

A restart fixed the issue last time and will probably fix the current issue too, is this a known bug or do I have some setting set wrong?


I’m on windows 1909 build 18363.1379. One update pending, the flash player one: KB4577586.

System hw:

  • AMD Ryzen 5 3600
  • 32GB Corsair Vengence LPX DDR4 3200
  • Gigabyte RX 5700 XT
  • Intel 600p 500GB
  • Samsung 860 Evo 500GB
  • WD 8TB Red 5400rpm 3.5"
  • WD 1TB Black 7200rpm 2.5"
  • MSI B350M Mortar Arctic, Bios: 7A37VAKS
  • Seasonic X-650 KM3
  • Dell 2007FP
  • Dell S2721DGF
  • Dell P2011H

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