Ryzen 7 5800x high temps

[Hamsandwich283]

Hi all,

I'm not sure but these temps seem a bit high to me and confusing with what appears to be different readings from the bios and windows

 

Question 1. I have the ryzen 7 5800x and I see conflicting numbers from bios to windows, is this normal?

 

BIOS idle

- CPU = 50°c / CPU package = 61°c

 

Windows ryzen master idle

- CPU = 32-35°c with the occasional spike to 40-45°c

 

I have tried 2 different coolers being a single fan Corsair AIO and a noctua NH-U12S with the noctua results being the best out of the 2 (above results), the AIO was about 5-10°c hotter

 

When I put the CPU under a full load across all cores in cenabench and CPU burner the temp quickly goes to 80°c then it creeps gradually up to 90°c (ryzen masters rated max for the CPU) just about as the Cenabench run ends.

 

My score seems to be about on par with what I see online so great, but those temps seem a bit to high to me

 

 

Single core run: it stays steady throughout the hole run at just below 60°c

 

Multiple core run:

 

Score:

[Skiiwee29]

100% normal idle behavior on Ryzen 3000 and Ryzen 5000 CPUs. 

[Mateyyy]

Looks like your motherboard's shoving 1.35-1.4V into the CPU at full load, so that's most likely the cause for your higher temperatures.

 

What motherboard is it that you're using, and are you running the latest BIOS?

Also, what are your ambient temps?

[Hamsandwich283]

1 minute ago, Mateyyy said:

Looks like your motherboard's shoving 1.35-1.4V into the CPU at full load.

 

What motherboard is it that you're using, and are you running the latest BIOS?

B550-F gaming on the latest BIOS, updated just yesterday in order to use the CPU

[Dudis]

Had the exact same issue on my 3800x when i first got it. I set the voltage to 1.27 i believe and its fine ever since. 

[Stahlmann]

9 minutes ago, Skiiwee29 said:

100% normal idle behavior on Ryzen 3000 and Ryzen 5000 CPUs. 

Idle, yes.

 

But the load temps should look better imo. My 3700X was around 65°C at max when using a U12S with all BIOS settings stock.

[Hamsandwich283]

1 minute ago, Dudis said:

Had the exact same issue on my 3800x when i first got it. I set the voltage to 1.27 i believe and its fine ever since. 

Yeah was thinking the voltage was a bit high but not sure if this is intended or not in order to maintain stability, could try it and re run the benchmarks

[Ankh Tech]

Just now, Hamsandwich283 said:

Yeah was thinking the voltage was a bit high but not sure if this is intended or not in order to maintain stability, could try it and re run the benchmarks

Try that, it should help

[Hamsandwich283]

1 minute ago, Stahlmann said:

Idle, yes.

 

But the load temps should look better imo. My 3700X was around 65°C at max when using a U12S with all BIOS settings stock.

Yeah I have not changed anything, all settings are stock and I have these temps, just dose not seem right to me

[Stahlmann]

2 minutes ago, Dudis said:

Had the exact same issue on my 3800x when i first got it. I set the voltage to 1.27 i believe and its fine ever since. 

You have to be careful with that. On ryzen you can lower the voltage and the clocks can stay the same. But performance can decrease anyways. Always verify undervolting with performance benchmarks. Just saying.

 

I even had a situation where my 3700X reached higher clocks when undervolted, but also performed worse than stock?!

[Hamsandwich283]

1 minute ago, Stahlmann said:

You have to be careful with that. On ryzen you can lower the voltage and the clocks can stay the same. But performance can decrease anyways. Always verify undervolting with performance benchmarks. Just saying.

 

I even had a situation where my 3700X reached higher clocks when undervolted, but also performed worse than stock?!

Yeah I will re run the cinabench after adjusting

[Dudis]

1 minute ago, Stahlmann said:

You have to be careful with that. On ryzen you can lower the voltage and the clocks can stay the same. But performance can decrease anyways. Always verify undervolting with performance benchmarks. Just saying.

 

I even had a situation where my 3700X reached higher clocks when undervolted, but also performed worse than stock?!

 

 

Yeah i noticed that my cpu wasnt running at full utilization with lower voltage and it showed in my bench scores. 

 

I started at 1.25 and worked myself up untill i got the scores i expected from googling. 4900 in Cinebench R20 all core on air cooling. Stock with PBO. 

[Mateyyy]

9 minutes ago, Hamsandwich283 said:

B550-F gaming on the latest BIOS, updated just yesterday in order to use the CPU

7 minutes ago, Dudis said:

Had the exact same issue on my 3800x when i first got it. I set the voltage to 1.27 i believe and its fine ever since. 

If you want to undervolt, try applying a negative voltage offset, as opposed to going with a static voltage.

Start with something like -0.05V and then keep going downwards if you want to (-0.075V, -0.1V, -0.125V), checking constantly that you're not also losing performance with Cinebench.

[Hamsandwich283]

4 minutes ago, Mateyyy said:

If you want to undervolt, try applying a negative voltage offset, as opposed to going with a static voltage.

Start with something like -0.05V and then keep going downwards if you want to (-0.075V, -0.1V, -0.125V), checking constantly that you're not also losing performance with Cinebench.

Ok I will try

[SFFDesigns]

4 minutes ago, Mateyyy said:

If you want to undervolt, try applying a negative voltage offset, as opposed to going with a static voltage.

 

I don't have a 5800X, but I do have a 3700X on a stock cooler and this actually improved performance. I actually managed to get PBO to beat my manual OC in CB20 with a -0.1V offset, so the undervolt could actually help performance.

[Hamsandwich283]

51 minutes ago, Stahlmann said:

You have to be careful with that. On ryzen you can lower the voltage and the clocks can stay the same. But performance can decrease anyways. Always verify undervolting with performance benchmarks. Just saying.

 

I even had a situation where my 3700X reached higher clocks when undervolted, but also performed worse than stock?!

0.05 offset

 

 

[Stahlmann]

1 minute ago, Hamsandwich283 said:

0.05 offset

I'll receive my 5600X today aswell. As soon as i install it i'll test some stuff myself and get back to you. Although it might not be really representable of normal use because i use a custom water cooling.

[Hamsandwich283]

3 minutes ago, Stahlmann said:

I'll receive my 5600X today aswell. As soon as i install it i'll test some stuff myself and get back to you. Although it might not be really representable of normal use because i use a custom water cooling.

With the offset it dose not appear to have affected performance all that much in multi core and not at all in single core but it has reduced the temps slightly, about 2-6°c

 

100% load cinabench 86°c (about 2°c drop)

Single core 100% load 53°c (about 6°c drop)

[Hamsandwich283]

9 minutes ago, Stahlmann said:

I'll receive my 5600X today aswell. As soon as i install it i'll test some stuff myself and get back to you. Although it might not be really representable of normal use because i use a custom water cooling.

Need to play around with it a little bit more but 1am at the moment for me so I'm going to get some rest

[Dudis]

Not entirely sure about ryzen 5000 but 3000 appear to have higher idle voltage than load voltage.  What's your voltage under load? 

[liftyee]

Same here. I have 5800X, B550 MAG Tomahawk, Dark Rock 4 Pro. 90C in Cinebench. A lot of users complaining about these temps on reddit. Looks like some boards have problems with that or it's just silicon lottery and 5800X has a lot of bad pieces.

[Stahlmann]

5 hours ago, liftyee said:

Same here. I have 5800X, B550 MAG Tomahawk, Dark Rock 4 Pro. 90C in Cinebench. A lot of users complaining about these temps on reddit. Looks like some boards have problems with that or it's just silicon lottery and 5800X has a lot of bad pieces.

6 hours ago, Hamsandwich283 said:

Need to play around with it a little bit more but 1am at the moment for me so I'm going to get some rest

So i've been playing around with my 5600X a bit. This is my data when running Cinebench R20:

 

Stock Data:

Frequency is topping out at ~4.1GHz all-core

Voltage is sitting at ~1.18V

Temp under load is sitting at ~60°C

Power draw is ~65W

Score Multithreaded: 4420

(Didnt measure stock single-threaded, but should sit somewhere around 600)

 

I even played around with some overclocking. My 5600X is able to do 4.7GHz all-core stable.

 

OC Data:

Frequency is set to static 4.7GHz all-core

Voltage is set to static 1.3125V

Temp under load is sitting at ~70°C

Power draw is ~80W

Score Multithreaded: 4630

Score Singlethreaded: 603

 

 

Basically i don't have any temp issues even when overclocked. You can see all my specs for context in my signature.

 

[Hamsandwich283]

5 hours ago, liftyee said:

Same here. I have 5800X, B550 MAG Tomahawk, Dark Rock 4 Pro. 90C in Cinebench. A lot of users complaining about these temps on reddit. Looks like some boards have problems with that or it's just silicon lottery and 5800X has a lot of bad pieces.

Interesting, what we have noticed so far is the temps seem to be a result of the high voltage.

 

In the BIOS the voltage is static at 1.47v which gets me 50-51°c on the CPU and 61-64°c on CPU package

 

As has been suggested to me above I have put in place a -0.05v offset which brought the voltage in the BIOS down to about 1.425v which changed the temps to CPU 45°c and CPU package 55°c

 

This did not hurt my single core score in cinabench at all getting 623 as I did before the change but the temps went from 58-60°c during the run to 52-54°c during the run

 

As for my multi core performance I did drop about 40 points of my score going from 6017 to 5975 but the temps did drop from 88-90°c during the run to 85-86°c during the run

 

I have yet to do sustained load testing to see if it reaches 90°c or not so may not be perfect but dose seem to help with minimal impact to performance

[Stahlmann]

Just now, Hamsandwich283 said:

Interesting, what we have noticed so far is the temps seem to be a result of the high voltage.

 

In the BIOS the voltage is static at 1.47v which gets me 50-51°c on the CPU and 61-64°c on CPU package

 

As has been suggested to me above I have put in place a -0.05v offset which brought the voltage in the BIOS down to about 1.425v which changed the temps to CPU 45°c and CPU package 55°c

 

This did not hurt my single core score in cinabench at all getting 623 as I did before the change but the temps went from 58-60°c during the run to 52-54°c during the run

 

As for my multi core performance I did drop about 40 points of my score going from 6017 to 5975 but the temps did drop from 88-90°c during the run to 85-86°c during the run

 

I have yet to do sustained load testing to see if it reaches 90°c or not so may not be perfect but dose seem to help with minimal impact to performance

Seems to be an issue with the BIOS you have. Like i said, my CPU sits around 1.2V all the time when running stock.

[Hamsandwich283]

2 minutes ago, Stahlmann said:

Seems to be an issue with the BIOS you have. Like i said, my CPU sits around 1.2V all the time when running stock.

Yeah, maybe they will patch it soon already running the latest BIOS.

 

I dropped the offset further to -0.075v and it brought the temps down by about another 5-6°c underload but did have a little bit of a hit to performance.