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Sudden high idle temp on 5800x

muon said:
I think curve optimiser -15 worked for me, if you want to get temps down further.

As you've found out, anything which maintains a single core load will keep the chip in a state where it will attempt to use PBO for single threads which is something like 1.5v. Which is made worse on the 5800X because of the concentration of heat on the 7nm die.
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cheers dude. Was it only -15 through curve optimiser or did you have to change other things?
 
@muon thank mate.

On a different subject considering upgrading the cooler to a D15s but while my brain logic dictates this would offer better cooling, the reviews I ahve seem comparing it to a u12s are mixed.
 
"If however, you really just wanted it to idle cooler and be less susceptible to short loads, then you'd be better off with an AIO. AIOs are able to deal with short loads really well as the water takes a while to heat up".

Exactly this to be honest, though I have space I'm not fussed on an AIO and want to stay air cooler.
 
harmattan said:
Not sure if mentioned already, but are you running 3DMark? If so, it more often than not leaves SystemHelper (paraphrasing, but you should see it in Task Mgnr) which continually runs checks on your sys. I couldn't for the life of me figure out why my 5800x was idling so high and that was the culprit.

I also had a similar odyssey with my 5800x temps where anything near stock voltage 1.45v peak would spike my temps to 90c (on an Adata Levante AIO, no less). The only thing that brought my temps down was undervolting heavily voltage limit to 1.3v at which I can still overclock to 4.8Ghz. I was able to get all the way to -25 stable, but curve optimizer did next to nothing to help my temps. I was also considering returning mine, but while it's a raging inferno at stock vcore, it's a champion undervolter/overclocker.
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I found the same with curve optimiser so may go the voltage limiter route.

I think a D15 is needed... :D

Edit : @harmattan what settings did you change and to what? Hoping I can replicate your success
 
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