Bought the components for this rig in August 2019 for my mother in law to use at work. Her typical workload is word processing / web stuff.
Worked well for a few months, now gets BSoD crashes (IRQL, Store Exception, DPC Watchdog, and others). Crashes usually happen when idle or under low load.
First few months: fine.
Last couple of months: one-two idle crashes per week.
Now: daily idle crashes.
Crashes after 1-2 hours of idle typically. Sometimes the crashes are not BSoD, sometimes they are to BIOS.
Ryzen 3600 + Stock Cooler
MSI B450 Tomahawk
Corsair Vengeance LPX 16 GB (2x8) 3200 x 2 (32 GB total)
EVGA 650 GQ 80+ Gold 650W
Samsung 970 EVO 1 TB SSD NVMe M.2
Gigabyte GTX 1050 Ti Windford OC 4GB GDDR5 PCI-E
Steps I've taken:
Crystal Disk says M2 is good, so does Samsung NVMe utility
Ran memtest, no errors
CPU heat is fine according to CoreTemp
Can run Prime95 no problem (though I only let it go for about an hour)
Various DISM and system file checker stuff
Windows and all drivers fully updated, no apparent errors, no weirdness in Device Manager
Downgraded BIOS to a June or July (I forget) 2019 build, ab rather than abba
Manually set CPU voltage to 1.35v
Clean install of Windows (first try was crashing a lot; second try much less frequent crashes)
Newest drivers, AMD chipset drivers
Would post minidump file but sometimes not a BSoD and a new install so not sure if it exists yet (going to go back to her office tonight to try to fix, will post a minidump if one was generated.
Why would it work well for a few months and then start dying?
Chances i should just RMA this CPU?
I'm out of my depths here. I'm not a true enthusiast. I can put together a system and get it past POST and install Windows, but after that I really start struggling. So please assume that I have the capabilities of an intelligent child in the replies.