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Journeyman III
Journeyman III

Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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New PC Build a few weeks ago and my Ryzen 5 2600 processor is throttled to 0.54 GHz (0.768 V) when I first boot and it will stay that way until I restart. After I restart it is clocked to the normal 3.4 GHz (1.144 V). As far as I can tell there are no temperature issues because it is idling as it was just booted and it doesn't go above 30C. I've been checking and updating drivers and BIOS without any success fixing this issue. I checked the windows 10 power plan and it is on high performance. I uninstalled some different monitoring/overclocking softwares, thinking some of that may be causing it but still no fixes. Do you have any ideas?

Here are my specs:
CPU: Ryzen 5 2600
Mobo: MSI X370 Gaming Pro Carbon

RAM: G.Skill Ripjaws V 2x8 GB DDR4-3200 (A-XMP Profile 2 for 3200 MHz)

Storage1: Samsung 860 Evo 1TB
Storage2: WD Caviar Blue 1 TB 3.5"

GPU: EVGA GTX 170

PSU: Corsair RMx 650W

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Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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I found a fix if you have not yet RMA'd however it may still be worth RMA'ing.

Download Ryzen Master.
Open Ryzen Master and go to Profile 1, and put it into Manual Mode.
Open the Settings and disable PROCHOT.
Your CPU will stop throttling, but this also means nothing will throttle it if it gets too hot.
What this suggests to me is that maybe the motherboard is detecting a false reading of being too hot and the CPU throttles.

But this works, while you're in Profile 1 after disabling PROCHOT, click "Copy Current" in the bottom left and save the profile.

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Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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materialwolf, please do a Clear CMOS (see manual) and install the latest AMD chip set drivers (includes Ryzen Balanced Power plan) from ONLY the AMD Driver Download Site.  Install Ryzen Master (RM) and post a screenshot.  Enjoy, John.

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Journeyman III
Journeyman III

Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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Thank you for your response. I recently did this as part of my troubleshooting, updating to chipset version 18.10.1810 from the AMD Driver Download Site. I will post Ryzen Master screenshots as soon as I can. The issue persisted so I'm stumped.

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Journeyman III
Journeyman III

Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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Here are my screenshots of before and after rebooting. The top shows 600 MHz and the voltage of 0. 775V. The bottom shows the normal clock speeds, higher voltage, and similar temperature.

AMD Ryzen Master Before Reboot.jpg

AMD Ryzen Master After Reboot.jpg

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Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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materialwolf, this looks like an MB problem and needs to be discussed with your MB vendor.  Are you running the latest BIOS available?  If not please update it and see if that helps.  Good luck and enjoy, John.

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Journeyman III
Journeyman III

Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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misterj, I am running the latest BIOS and had already spoken to MSI, the MB vendor. They had just told me to update my BIOS then said to try a different CPU if I had one (which I don't) or RMA the CPU... I was hoping to get a little further insight here and from the support ticket I put in to AMD, which I haven't heard back from.

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Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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materialwolf, I guess I would suggest asking for an RMA from both MSI and AMD.  Good luck, John.

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Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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I have this EXACT same issue with a Ryzen 2600 and a ASUS ROG x370-F motherboard, same voltage, same clock speeds, runs extremely slow until I hit it with a restart, I tried nearly everything, I don't understand, it surely can't be a motherboard issue being yours and mine different, unless they're affected in the same way.

It's odd for it to be an CPU issue if it returns back to normal on restart?

I cannot find a single other post on this subject, and it bugs me haha.

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Journeyman III
Journeyman III

Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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I haven't found much on the internet either. I agree, I leaned on it being a Motherboard issue since it fixes on a restart. Both of us have X370s so I wouldn't rule it out.

If I recall correctly, setting an overclock in the BIOS fixes it, I'm just not sure if I want to have to have a permanent overclock. I don't really want to deal with RMA either though. Still up in the air which I will do.

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Re: Ryzen 5 2600 Throttling to 0.54 GHz on Cold Start

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Here's a list of thing's I've tried.

1. Reset CMOS
2. Reseat RAM
3. Update BIOS
4. Force CPU Voltage to 1.3v
5. Force CPU Overclock to 3.4ghz
6. Straight Power To PC
7. Full Default Settings
8. Power Management to High Performance
9. Power Management to Ryzen Balanced
10. Played with various settings that may affect CPU throttling

Probably more things that I've tried but no fix yet.

Starting to thing Motherboard issue more and more, because from what I can gather throttling to 550mhz is a safety feature.

So far restarting everytime I boot up is my only option, PC is basically unusable otherwise.

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