5700X overheating

Dg834man · 20 Apr 2022 at 16:24

No its just the default you can go over it.

locrieth said:
Default for Socket AM4 is at least 142W on motherboards rated for 105W TDP processors.

Wheres this quote from userbenchmark :cry:

it should read Default for Socket AM4 is at most 142W on motherboards rated for 105W TDP processors.

humbug · 20 Apr 2022 at 16:29

locrieth said:
So does that mean its a hard limit of the socket? i.e the 120W my PPT is pulling is well within the range for the socket?

I read this bit but the "at Least" confused me a little as that implies its a minimum usage

Default for Socket AM4 is at least 142W on motherboards rated for 105W TDP processors.

No, you can push more than that through the sock and you do it through PBO, its an official limitation that AMD stick to because the motherboard vendors are selling a product with a warranty but its not a hard limit.

locrieth · 20 Apr 2022 at 16:34

Dg834man said:
No its just the default you can go over it.

Wheres this quote from userbenchmark it should read Default for Socket AM4 is at most 142W on motherboards rated for 105W TDP processors.

To be fair i've seen that same quote, when trying to read up about PBO, PPT, EDC and TDC from multiple sources, albeit formatted exactly the same so they may all originate from the same source...

This was the last one i read:

https://www.overclock.net/threads/understanding-the-sizing-and-limits-of-ppt-tdc-and-edc.1732088/

locrieth · 20 Apr 2022 at 16:35

Quote:

This is the theory

Package Power Tracking (“PPT”): The PPT threshold is the allowed socket power consumption permitted across the voltage rails supplying the socket. Applications with high thread counts, and/or “heavy” threads, can encounter PPT limits that can be alleviated with a raised PPT limit.

Default for Socket AM4 is at least 142W on motherboards rated for 105W TDP processors.
Default for Socket AM4 is at least 88W on motherboards rated for 65W TDP processors.

Thermal Design Current (“TDC”): The maximum current (amps) that can be delivered by a specific motherboard’s voltage regulator configuration in thermally-constrained scenarios.

Default for socket AM4 is at least 95A on motherboards rated for 105W TDP processors.
Default for socket AM4 is at least 60A on motherboards rated for 65W TDP processors.

Electrical Design Current (“EDC”): The maximum current (amps) that can be delivered by a specific motherboard’s voltage regulator configuration in a peak (“spike”) condition for a short period of time.

Default for socket AM4 is 140A on motherboards rated for 105W TDP processors.
Default for socket AM4 is 90A on motherboards rated for 65W TDP processors.

humbug · 20 Apr 2022 at 16:45

Just to give the CPU some breathing room in the socket i have added 20% to all the values, except EDC which seemed very grateful for the extra headroom and immediately swallowed it up, (oh thank you sir monch) so i have it another 20% and now its peaking at 82% of that value.

My CPU cores are 81 watts at 4.725Ghz in CPU-Z stress test, i still find that efficiency amazing, this CPU is on a process node 3 generations surpassed.

locrieth · 21 Apr 2022 at 09:09

Right so I working from home today, so I can tinker a bit. The values I had max while running CB R23 today were:
PPT = 125W
TDC = 82A
EDC = 138A

In AMD RM the limits are set to:
PPT = 395W
TDC = 160A
EDC = 190A

So, do you think I should take the max settings I got in CB R23 and add about 20% on then set them manually in BIOS?

I.e.:

PPT = 150W
TDC = 100A
EDC = 165A

locrieth · 21 Apr 2022 at 10:01

I stuck those limits on and ran CB R23 for multicore and single core and they stay happily in low 70s. So i ran Prime95 on Smallest again and it did hit 90C but it took a good 6-7 mins to get there now rather than 5-10 seconds before:

TDC hit 100% of limit and PPT was 144W so 96% limit
RM:

voidshatter · 21 Apr 2022 at 11:23

aachil said:
i already have done bro highest i get to is 76c
so there is definatly something wrong here with his

Same here, merely 75C with small FFT with the 5700X. It's not even as stressful as patching multiple virtual machines at the same time.

My 5800X3D will arrive shortly but I'm not sure whether I want to put that into my daily driving rig as I really enjoy the power efficiency of the 5700X!

Ross Thomson · 21 Apr 2022 at 11:26

I would start to do undervolt now. put in an undervolt andrun CB. see what the score is. keep applying an undervolt till it drops in score then return. Start with a -ve offset of 0.01v and go form there.

humbug · 21 Apr 2022 at 12:56

@locrieth

If you want to get in to tweaking, lower your temps even more, get some more clocks out of it....Watch this and let us know, we can tell you where to start..

aachil · 21 Apr 2022 at 13:26

sorry for such late replys so i actually just did a test now with pbo fully enabled in my bios. and ran prime 95 with smallest ffts
and i also hit around 90c within a minute.
so it is 10000% an issue with pbo..
so i set it back to auto and my highest temps with smallest ffts is around 66c again very weird

locrieth · 21 Apr 2022 at 16:37

aachil said:
sorry for such late replys so i actually just did a test now with pbo fully enabled in my bios. and ran prime 95 with smallest ffts
and i also hit around 90c within a minute.
so it is 10000% an issue with pbo..
so i set it back to auto and my highest temps with smallest ffts is around 66c again very weird

Have you got Ryzen Master installed? If so what does it show your PPT, TDC and EDC values at?

Cyber-Mav · 21 Apr 2022 at 18:00

humbug said:
I don't know, i don't like Prime95 at all, at least not for modern CPU's with AVX instructions, some will and do argue "Prime95 is a legitimate use case" i have never see anything stress a CPU anything like as hard as that, especially smallest FFTs, it seems to me to put a far higher load on the CPU that it will ever see in any real world application, which in some ways is fine because its the ultimate tress test, i guess.... i just don't think any programmer making software for the real world would use the AVX instruction set in this way.
You could use larger FFTs and its less stressful but IMO Cinebench is a legitimate stress test as its a real application (Cinema4D) and its about as stressful as it gets for real world applications. so if all is well there you shouldn't worry about anything else.

Prime avx is a good test for the cpu. I do a lot of video encoding and that uses avx instructions too but not as brutal as prime. Atleast i know with prime stable cpu if i get crashes its gonna be software or something other than the cpu. And since iv had the ryzen setup iv not had any crashes but then again im not overclocked but run with a raised power limit which helps with video encoding.

Cyber-Mav · 21 Apr 2022 at 18:03

locrieth said:
Hey All,

So I got a 5700x from OCUK the day after release and swapped out my 3600x, cooled by an EVGA CLC280. I tested the cooler on my 3600x and the temps were fine running prime95, sorry can't remember the exact temps, but they were well within tolerances. When I stuck the 5700x (at stock) in I cleaned off all the TIM with alcohol and reapplied new paste, stuck it all back together again and ran a prime 95 test and it jumped almost straight up to 90C . So I left it for a week or so with minimal usage and then when I next had a chance, removed the heatsink and checked if there was a full spread of paste, it didn't look too bad, but I stuck a bit more on just to be safe. Tested again and it jumped straight back up to 90C. Has anyone else had an issue with this CPU or am I doing something wrong??

Cheers,

Locrieth

5700x is a 65w cpu it shouldn't get anywhere near 90c running at stock especially with the water cooling your running. Check the ppt its pulling in hwinfo for those sort of temps its got to be pulling 130w or your cooler is bust.

humbug · 21 Apr 2022 at 18:07

Cyber-Mav said:
5700x is a 65w cpu it shouldn't get anywhere near 90c running at stock especially with the water cooling your running. Check the ppt its pulling in hwinfo for those sort of temps its got to be pulling 130w or your cooler is bust.

You're a bit late to the party

Cyber-Mav · 21 Apr 2022 at 22:16

humbug said:
You're a bit late to the party

Didn't get the invite

LtMatt · 21 Apr 2022 at 22:22

humbug said:
You're a bit late to the party

Cyber-Mav said:
Didn't get the invite

If your names not down you are not coming in.

g67575 · 22 Apr 2022 at 11:54

locrieth said:
I stuck those limits on and ran CB R23 for multicore and single core and they stay happily in low 70s. So i ran Prime95 on Smallest again and it did hit 90C but it took a good 6-7 mins to get there now rather than 5-10 seconds before:

TDC hit 100% of limit and PPT was 144W so 96% limit

Well done, much better.

Remember that the tjmax for this CPU is 90 Celsius. Spec here:
https://www.amd.com/en/products/cpu/amd-ryzen-7-5700x

I would reduce the reduce the PPT limit by 5 to 10 watts so that you never reach your thermal limit.

If you don't want to do that, try lowering CPU voltage by 10%, see if it crashes in Prime95 after a few hours.

aachil · 23 Apr 2022 at 09:01

locrieth have you found any good values that you set on your cpu yet thats stable and give good temps?
id like to try tinkering aswell but i dont like pbo making my cpu temp go to 90c when using prime

Cyber-Mav · 23 Apr 2022 at 09:29

locrieth said:
I stuck those limits on and ran CB R23 for multicore and single core and they stay happily in low 70s. So i ran Prime95 on Smallest again and it did hit 90C but it took a good 6-7 mins to get there now rather than 5-10 seconds before:

TDC hit 100% of limit and PPT was 144W so 96% limit
RM:

Your problem is right there staring you in the face. Ppt of 144w. You dont need to mess with tdc or other stuff if you just put ppt to stock 65w.
Pumping 144w into single zen3 chiplet is gonna make some serious heat.