CPU at 100% but below clocked speed

Toggle sidebar Toggle sidebar
T

tangtjf

Prominent
Nov 22, 2017
5
0
510
I am running a ryzen 5 1500X clocked at 3.85 GHz, but when running video encoding programs, CPUID and CPU-Z show that I am running at 100% at only 3.0 GHz, whereas windows task manager shows that im running at 70+%

readings are as follows

CPU-Z
core voltage: 1.384v
core speed: 2998.2 MHz

CPUID
VID: 1.35V min 1.75V max
utilization: 98%
temp: 86 *C

windows task manager
CPU speed: 2.98 GHz
utilization: 77%

im assuming that that task manager readings are inaccurate but im not sure what is causing this problem, I have already set the maximum processor state to 100% in the control panel power settings.

any help would be much appreciated. Thank you!
 
Solution
Roland Of Gilead


It may help. Your voltage is low, so you should have...
Sort by date Sort by votes
P

pm4

Honorable
Apr 28, 2014
421
2
11,160
3.85 GHz means you overclocked it as stock speed should be 3.5 and turbo speed 3.7
Did you check temperature? Cause of your problems may be thermal throttling during heavy load (which video encoding is).
What cooler are you using?

EDIT:
86 °C is it during that video encoding?
If you have 86 °C at 3 GHz it's more than likely that at 3.85 you have it clocked for it would go over safe temperatures and auto throttle down to those 3GHz.
So this will be mostlikely cause of your problems.

Did you built this PC yourself or its prebuild?
What cooler you got?
 
Upvote 1 Downvote
Roland Of Gilead

Roland Of Gilead

Titan
Aug 8, 2008
10,287
2,241
77,690


agree with you there. At that OC and 100% CPU 86C is very high. I wouldn't have it going above 80c.

I'd say the OP has dialed in settings for an OC and perhaps not stress tested to ensure it working correctly.

Reduce the OC and test with something like Prime95 (small FFT's) and find out where your temps are at. Then you get adjust your OC for best performance and reasonable temps so you don't throttle.
 
Upvote 0 Downvote
T

tangtjf

Prominent
Nov 22, 2017
5
0
510


Yup first ever build so very new to this whole thing, still using the stock ryzen cooler but will probably upgrade to a coolermaster hyper evo or equivalent soon
 
Upvote 0 Downvote
T

tangtjf

Prominent
Nov 22, 2017
5
0
510


I'll give it a shot, thanks!
 
Upvote 0 Downvote
Roland Of Gilead

Roland Of Gilead

Titan
Aug 8, 2008
10,287
2,241
77,690


no probs. Let us know how you get on. The main objective with an OC is to get higher clockspeed, but you want it to be stable, with low voltages and temps as possible.

You start off low and slowly work your way up, testing a long the way for stability. If you have any questions about OC'ing feel free to PM me. Otherwise google your CPU/mobo combo and read and learn as much as you can before you OC.

 
Upvote 0 Downvote
T

tangtjf

Prominent
Nov 22, 2017
5
0
510
UPDATE: I've dialed all the settings back down and running it at 3.7 GHz with 1.24V which keeps temps at around 50C idle and 60-70C when under load. Will try to push it a bit further once i get myself a proper CPU cooler :)
 
Upvote 0 Downvote
Roland Of Gilead

Roland Of Gilead

Titan
Aug 8, 2008
10,287
2,241
77,690


Your idle temps are a little high at 50c. Should be about the 30-35 mark. Load temps about 50-60, stress temps about 70-80.

Have you run Prime95 to stress. If the temps go above 80 with Prime, then you need to dial back a bit, or as you said get a better cooler.

Have fun and good luck :)

 
Upvote 0 Downvote
T

tangtjf

Prominent
Nov 22, 2017
5
0
510


would it help to upgrade the case fans as well? Im using some stock coolermaster fans in a mATX case that doesnt exactly have great airflow i think
 
Upvote 0 Downvote
Roland Of Gilead

Roland Of Gilead

Titan
Aug 8, 2008
10,287
2,241
77,690


It may help. Your voltage is low, so you should have relatively low temps too. Your kinda going in reverse.

What I would do to monitor temps is start at stock. Let your system idle for 20-30 mins and note the temps.
Then run prime and see what your max temps are at stock. Then from there work upwards. You've already hit 3.8 so start from stock with 100mhz increase on the CPU. And test each time you bump up. That way you can better gauge your stock temps as a baseline to work from. Just keep increasing the CPU multiplier untill you hit about 75c on stress. Then you have your max temps, min voltage (hopefully) and your CPU running stable.

Adding case fans can be done afterwards depending on the results of your OC.

 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom