PC Processors

[pikajude]

my 3900x has been working fine since I bought it in september 2020. recently, i reinstalled windows 10 after trying out windows 11 for a bit and finding it not to my liking. since then, my pc won't wake up from sleep. instead, it reboots. every time it does this, i see an event like this in event viewer:

A fatal hardware error has occurred.

Reported by component: Processor Core
Error Source: Machine Check Exception
Error Type: Cache Hierarchy Error
Processor APIC ID: 20

The details view of this entry contains further information.

there are plenty of google results for this error, but all the threads are about people who are experiencing random crashes while using their computer, which i am not. this only happens when i try to wake it from sleep, and otherwise my system's totally stable.

[kingfish]

Try disabling 'Fast Startup'

How to enable and disable fast startup on Windows 10

If you'd like to see how your PC performs without fast startup enabled, you can disable it in just a few steps:

1. Right-click the Start button.

2. Click Search

3. 1. Type Control Panel and hit Enter on your keyboard.

   2. Click Power Options.

   3. Click Choose what the power buttons do.

   4. Click Change settings that are currently unavailable.

   5. Click Turn off fast startup 
   6.  Click Save changes

   7. REBOOT (important)

[pikajude]

no, fast startup has never been on

[pikajude]

got an automated email that encouraged me to mark this thread as resolved, so i'm just posting here to clarify that it isn't