[SOLVED] Cpu downclocking heavily under load (Ryzen 7 1800x Baseclock 3.30 GHz, 2.1 GHZ under load (stress test))

SlimE_1

Commendable
Feb 14, 2017
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SlimE_1

Commendable
Feb 14, 2017
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cpu: ryzen 7 1800x
mobo: x370-f
gpu: rx 480
ram: gskill ripjaws 2x8gb @3200mhz
500watt psu
cpu cooler: https://www.amazon.de/gp/product/B00PQ5LV1G/ref=ppx_yo_dt_b_asin_title_o05_s02?ie=UTF8&psc=1

No OC

idle runs 50 degrees @ 2.9ghz, under load it maxes out at 75degrees but it downclocks itself badly to 2.8 GHZ

bios doesn't let me change any clock speeds / voltage , even if i go to manual it just grays out the options that appear

same thread: https://linustechtips.com/main/topic/1093381-ryzen-7-1800x-downclocks-itself-once-it-reaches-75-degrees-and-it-keeps-downclocking-to-maintain-75-degrees-i-cant-reach-base-speeds/?tab=comments#comment-12802524
 
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Agree with the user on LTT forums, use Userbenchmark with caution. One thing is clear though, your boost clock isn't working correctly for whatever reason. In fact, Userbenchmark seems to indicate your boost clock is lower than the base clock (however that works).

What other things have you got installed which can configure the CPU? Ryzen Master? Might be worth checking some settings on there if installed, otherwise it might be a BIOS issue (bit beyond me), or possibly power profiles in Windows.
 

SlimE_1

Commendable
Feb 14, 2017
42
0
1,540
1
Agree with the user on LTT forums, use Userbenchmark with caution. One thing is clear though, your boost clock isn't working correctly for whatever reason. In fact, Userbenchmark seems to indicate your boost clock is lower than the base clock (however that works).

What other things have you got installed which can configure the CPU? Ryzen Master? Might be worth checking some settings on there if installed, otherwise it might be a BIOS issue (bit beyond me), or possibly power profiles in Windows.
We tried.. I am so done..
I posted a picture of the bench on LTT
 

dorsai

Honorable
Nov 23, 2013
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I built in my new cooler. Idle 35C, 65C under load. But the performance of my cpu is still poor, it's even worse than before. Is my cpu broken?



I need help

my result: https://www.userbenchmark.com/UserRun/19258073

Unplug the computer...remove the CMOS battery from the motherboard...wait 5 min. Put the battery back in (or better yet replace the battery with a new one) and reboot to motherboard defaults...apply the XMP profile for your RAM while leaving everything else at default. Check performance.

If you still have issues I would roll back to BIOS 4207 and see if the CPU performs correctly....you're running a first gen Ryzen chip and many newer BIOS have moved to support 2nd and 3rd gen Ryzen which might be causing issues.
 

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