5600x dropping to 500mhz on all cores, persists through a hard reset.

[Thermonuclear]

I have a 5600x which I've had since Jan 16th of 2021. I had a Biostar B550GTQ which exhibited the behavior. I've also had it in a Gigabyte B450M-DS3H https://www.gigabyte.com/Motherboard/B450M-DS3H-rev-1x#kf a Gigabyte B450 I AORUS Pro WiFi https://www.gigabyte.com/Motherboard/B450-I-AORUS-PRO-WIFI-rev-10#kf and now an ASUS ROG Crosshair VIII Impact https://rog.asus.com/us/motherboards/rog-crosshair/rog-crosshair-viii-impact-model/ They have all had varying degrees of odd behavior. The CPU would trip PROCHOT_CPU AND PROC_HOT EXTERNAL in HWINFO64, even when the temp was in the 40's. This was accompanied by 500mhz core clocks on all cores, regardless of load. This would persist even through a hard reset. Powering the unit down and back on would fix it. With the Asus board it's now locking up solid and the LCD on the ROG RYUO AIO will get stuck on one temperature instead of cycling. The power button and reset button have NO effect. Only the PSU power switch will fix that particular issue. It dropped down to 500mhz today and did NOT trigger the PROCHOT flags in HWINFO, I thought to load Ryzen Master this time, and got what is displayed in the attached screenshot. Any suggestions?

 

[Thermonuclear]

Bump?

 

[GoldChain]

That chip looks bad to me.. Or has a bent or missing pin. The only time I have seen something like this is when I have had a short in the chip and there was nothing I could do to fix it. The only other thing I MIGHT try is a different PSU, maybe your 8 pin CPU rails are broken. With something like this it is very hard to know for sure.

 

[Thermonuclear]

No bent pins. This is the 3rd Tier-A PSU, 4th motherboard, second video card and 5th? cooler. I've initiated the RMA process, but I'm not holding my breath because I got it on eBay. Although it was new in box, supposedly. Came sealed but with the 100-000000065 part number, indicating it's OEM. I'll post a pic of the pins in a bit. I can get into more info on all the parts if need be. I agree it's hard to know for sure. Got a 3600 non-x in there currently. I've got like 6 Ryzens I can try... Lol

Edit: Pics of offending CPU

 

[GoldChain]

No bent pins. This is the 3rd Tier-A PSU, 4th motherboard, second video card and 5th? cooler. I've initiated the RMA process, but I'm not holding my breath because I got it on eBay. Although it was new in box, supposedly. Came sealed but with the 100-000000065 part number, indicating it's OEM. I'll post a pic of the pins in a bit. I can get into more info on all the parts if need be. I agree it's hard to know for sure. Got a 3600 non-x in there currently. I've got like 6 Ryzens I can try... Lol

Edit: Pics of offending CPU

Best of luck! Hopefully AMD can help you out, it sounds like someone ragged that CPU before they sold it on EBay =/

 

[Thermonuclear]

Best of luck! Hopefully AMD can help you out, it sounds like someone ragged that CPU before they sold it on EBay =/

Yeah, very possibly. We'll see. I might have to get an AM5 setup, oh no! Lol

 

[crazycrave]

Have you flashed any of your bios ?

 

[Thermonuclear]

Have you flashed any of your bios ?

Yup. Hasn't helped yet.

 

[crazycrave]

I guess the new prices on 5600x is good news. I payed around $375 for mine when AMD was only selling to scalpers!

 

[Saabjock]

I guess the new prices on 5600x is good news. I paid around $375 for mine when AMD was only selling to scalpers!

I love my 5600X.
It was purchased to replace a 3600X.
Given the bump in price at the time I purchased it from AMD Direct, it was overpriced at $299 plus tax and shipping ...so $321.
I can't complain too much though because it 'burrows' through everything I throw at it.
This is the result after completion of a twenty minute online race in Assetto Corsa Competizione.
Look at those cores.