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Processors

Lord_Vader
Adept I
‎07-06-2021 08:28 PM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

Thanks for your help.  After running corefreq if I'm reading this correctly it states I have a max Frequency of 5.25 Ghz.  Is that correct?  If so that rules out the CPU as the problem.  cpu.jpg

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cyring
Adept II
‎07-07-2021 01:39 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

It is indeed an abnormal high frequency for a 3900X according to its specs. Could the BIOS firmware be an issue ?

Can you post a screenshot of the UI showing bars when at max frequency ? 

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MikeGee
Adept I
‎07-07-2021 04:04 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

@cyring This is not the OP @Lord_Vader captured this thread and posted the output of his 5900X. His problem ist obviously a wrong MB config.

AMD user since 1994
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Mcunixz
Journeyman III
‎07-07-2021 07:34 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

I was able to solve the problem by trying 7 different bios. I finally put the FIRST bios for my MB and all my cores unlocked. Everythings fine since then. No, 5.25ghz isnt normal. 

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rcflyinghokie
Journeyman III
‎07-07-2021 10:21 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

So on the latest AMD chipset drivers the problem has stopped popping up.

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Mcunixz
Journeyman III
‎07-07-2021 05:06 PM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

Yes! Latest chipset driver and the first bios of my msi pro vdh. Everythings good now! 

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lakerssuperman
Journeyman III
‎08-01-2021 08:10 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

Hello there!  I picked up a 2700x, motherboard and ram back in November and I've been struggling with this issue.  Booting will randomly leave my CPU at 550mhz and every time I put the computer to sleep it wakes at 550mhz.  I'm also using Linux. 

By chance, do you recall which setting in the bios fixed it for you?  I've tried every setting that looks like it would have an impact on this issue, but so far nothing has worked.

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Mcunixz
Journeyman III
‎08-01-2021 09:17 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

Its not a setting, its just a different version of the bios. Just try to flash your bios with another version. 

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lakerssuperman
Journeyman III
‎08-01-2021 09:32 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

@avetMentioned a setting that seemed to alleviate the issue as well as Linux (what I run) is why I asked.  I've tried flashing a few different BIOS versions on my board and it had no impact on the issue.   I guess I could try further flashing, but given that my CPU can work at full speed, it feels like a setting issue or setting interaction between the BIOS and OS.

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Mcunixz
Journeyman III
‎08-01-2021 09:40 AM

Re: AMD Ryzen 3900X stuck at very low (500 Mhz) frequency for core 0, 1, and 2

Oh ok sorry. For sure if the clocks works normally most of time, i dont really know whats your issue. For my personal case, the cpu was stuck at 550mhz all the time. 

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