DaffyConstant48, your brief statement reads as similar to what I've been experiencing. Please see what I did below for problem 1 for a possible workaround for your situation.
System Details:
OS - Windows 10 Home, 64-bit, (10.0, Version 2004, Build 19041)
Processor - AMD Ryzen 7 3700X, 3.6GHz Base Clock
RAM - 32GB G-Skill DDR4@3600MHz 14CL (F4-3600C16D-16GTZN)
Motherboard - ASUS PRIME X570-PRO, BIOS 2606, Aug 2020
---- AMD Chipset Drivers 2.10.13.408, Oct 2020
GPU - NVIDIA GeForce RTX 3080 ASUS ROG Strix OC
Video Driver - 456.71 - WHQL, Oct 2020
Monitor - AOC Agon AG352UCG6 @ 3440x1440
System Drive - XPG SX8200 Pro 2TB, NVMe
Power Supply - KINGWIN Model: ABT-1220MA1S, 1220W, 80 Plus Bronze
Sound Solution - Realtek HD Audio onboard sound
Sound Driver - 6.0.8971.1, 15 June 2020
Speakers - Logitech G51 5.1 Surround
On 15 Oct, my PC installed the following updates:
KB4579311 - Cumulative Update
KB4580325 - Adobe Flash Player
KB4578968 - .NET 3.5/4.8
KB4486663 - Outlook 2010
KB4486703 - Word 2010
KB4486707 - Excel 2010
KB4486700 - Office 2010
Since then, I've encountered two problems. The first is similar to DaffyConstant48's statement.
- Critical Kernel-Power error 41. Power down during idle.
- Audio becomes quiet over time in the center/subwoofer channel.
For Problem 1, disabling C-states in the BIOS seems to have temporarily stopped the problem. This isn't a permanent solution, but it's a reasonable workaround. PSU voltages test out successfully, and the CPU, GPU, and RAM all stress test
successfully and do not seem to be the source of the problem.
For Problem 2, I don't know what the issue is. At first, I thought that my old Sound Blaster X-Fi card fried, so I removed it and began using the onboard Realtek audio solution, but I encountered the same situation with that too. It happens with both Speakers
and Headphones. My workaround has been to change audio outputs from Speakers to Realtek HD Audio 2nd output (Headphones) and back again or vice versa.
I plan to wait a couple of days, and if I still don't experience any more power down during idle crashes, I will post on the Feedback Hub.
I assume that the issues lie with KB4579311 and not the other six updates, but I listed them here for completeness.