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R7 3700X CPU cores not sleeping when Win 10 is idle

Question asked by partydaz on Feb 28, 2020
Latest reply on Mar 26, 2020 by jigzaw

Hello 

 

Little question for you folks,

 

The cores on my R7 3700X CPU are not going too sleep when Win 10 is idle.

 

Now this only happens when I exit a game, only way to fix it is a reboot of windows then the cores sleep & idles 0.9V, i have left the machine on most of the day with steam running downloading games etc and when i close steam down and leave it to idle the cores go to sleep, so only exit a game seems to start the fault

 

AMD Ryzen Master used to monitor CPU.

 

Voltage jumps around 1.16v -1.2v @ 1.2Mhz. Sometimes after i exit a game it will clock higher at around 3Mhz+ @ 1.4V seems intermittent the clock rate and voltage but always the same outcome after i exit a game cores don't sleep at idle & the Single core boost never gets to 4.4Mhz until i restart.

 

I can make the CPU cores start to sleep if I select windows power saver plan the voltage drops to 0.9v & cores start to sleep. The Ryzen balance power plan is the default plan i use.

 

I only started to notice this a few days ago after Battlefield 5 CTD with the No output black screen bug but i have fixed battlefield 5 now no more CTD. After CTD Cores were stuck at 1.4v @ 3mhz+ until reboot.

 

Is this normal for these chips our are the power plans buggy?. I know they had problems on release with voltage and temps but i can not seem to find anything on my problem, if it even is a problem i might be seeing faults that are not there because its my new baby 

 

Reinstalled AMD Chip-set drivers see if it fixes the power plans, nope 

 

Voltage while gaming is fine all core boost 4Mhz @1.27V , Single Core boost is 4.394 @1.45V

Temps idle 32 degrees / room temp 20 degrees

Benchmark temps 63 degrees

 

Win 10 Stable for hrs on end and gaming no errors apart from the battlefield 5 CTD once 

 

Fresh build 4 weeks ago

All the drivers up to date + win 10

MOBO settings left on default & XMP only thing i changed / turned on when pc was built.

 

 

R7 3700x

MSI MPG x570 gaming edge WIFI

Corsair DDR4 Vengeance LPX Black 16gig, 3,600Mhz

Sapphire 5700xt nirto+ 

corsair RM 650w psu

 

Thanks for reading & any info would be grateful 

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