New build
cpu ryzen 5900x
mobo x570 msi mag tomahawl wifi
ram corsair vengeance pro RGB 3200 2x16gb
ssd WD black 850 1tb
All drivers upto date,
bios upto date.
Intermittent crashes and restarts.
Error log
A fatal hardware error has occurred.
Reported by component: Processor Core
Error Source: Machine Check Exception
Error Type: Cache Hierarchy Error
Processor APIC ID: 10.
does not appear to happen when being stressed by prime.
can happen when just browsing internet
any advice will be appreciated
thanks in advance
What powersupply? Generally you will be ok, but some rare reports of 3000 systems with AMD and some PSUs crashing (JayZ2Cents did a youtube on it) and at a guess, I'd say it's the boost behaviour of the GPU and CPU just overwhelming the trip protection in the PSU as it's mistaking it for a fault, and not just a normal voltage spike for power.
For my 5600x this was the troubleshooting thing (though yours is a 5900x, so kinda harder).
Run with basic/default ram profile, so 1200hz, not 3200hz.
Run with no OC/bosting allowed, to make sure the core/clocks/boost is not over boosting, under/overvolting etc.
Run with most cores disabled, then do tests (or alternatively, run with 2 cores disabled, and run through each core pair) to find if any cores are dead/throwing errors (AMD Ryzen master allows you to turn off some cores).
My errors were only really in Chrome/etc. But others report random crashes from the AMD chips, which I assume is something to do with the boost behaviour as most boards seem to be over boosting (Intel boosts too, but only to the max of the chip IIRC, where as these motherboards seem to be hitting close to 5ghz on 4.7/4.8ghz chips as reported in HWMonitor, but Ryzen Master shows much lower numbers).
I've not got my 5600x back/the replacement just yet. But booting with the 5800x totally solved my problems, so currently waiting to get a bigger heatsink for it, and to tune it's voltage down cos it's way to power hungry/boost stupid.
Let us know how it goes, as most the reddit threads seem dead now, so we need a place for people who can help.
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