95C temp under load

[dumpa]

Is there software that can track individual CPU core temps? Trying to figure out why my CPU gets so hot while stress testing with prime95. Even had a BSOD once. Is this AIO just not good enough? Should I try something else? Thanks

 

[RollingThunder]

Yep, nice program. It detects individual core temps.

HWiNFO64.EXE

 

[EarthDog]

Coretemp if you just want cpu.. also lists power.

Stress testing typically hits the processor limits or close to it. It's done so for generations, really.

 

[dumpa]

Coretemp if you just want cpu.. also lists power.

Stress testing typically hits the processor limits or close to it. It's done so for generations, really.

I tried it before and this is what I get. Lists frequencies and I'm not even sure about the core count. Supposedly this should be a 12core 24 thread CPU, but maybe I'm wrong about that. BTW this was my first AIO and maybe my expectations were higher. It seems I can't even consider overclocking.

 

[JLK03F150]

You wanna make sure you're running the latest version. I don't know if it will help or not, but it can't hurt.

Windows

https://www.alcpu.com/CoreTemp/CoreTemp-1-19-4-x64.zip

Linux

https://www.alcpu.com/CoreTemp/CoreTemp-1-19-4-Linux.zip

 

[Woomack]

I tried it before and this is what I get. Lists frequencies and I'm not even sure about the core count. Supposedly this should be a 12core 24 thread CPU, but maybe I'm wrong about that. BTW this was my first AIO and maybe my expectations were higher. It seems I can't even consider overclocking.

I think you don't understand how these new CPUs act. Don't mean me wrong, it isn't very clear. These CPUs have a Tj of 95C, and they boost up to 95C. If you provide better cooling (not LN2, but better air or water), then they will still go up to 95C, but the max boost frequency will stay at max for longer. While lowering temps, you will notice that at some point the CPU frequency doesn't go any higher (it's somewhere about 80-85C, but depends on the CPU).
High temps shouldn't cause instability because these CPUs automatically manage voltages and frequencies. Instead of instability, you will see lower than expected performance ... but it still shouldn't cause other issues.
I'm not talking about a situation when someone uses a cooler designed for 100W CPUs on a 200W CPU.

In short, it's normal to see 95C on a 360 AIO when a CPU like yours runs at 100% load for an extended time. This is why many users set lower CPU voltage, which, in most cases, gives you a higher core boost due to lower temps. Try to play with something around 1.25V and check how the CPU acts.

If you want to overclock anything, I recommend using hwinfo64, as it tells you if there is thermal throttling, a too-low power limit, or other things that cause the CPU to run at a lower than expected frequency.

 

[dumpa]

I think you don't understand how these new CPUs act. Don't mean me wrong, it isn't very clear. These CPUs have a Tj of 95C, and they boost up to 95C. If you provide better cooling (not LN2, but better air or water), then they will still go up to 95C, but the max boost frequency will stay at max for longer. While lowering temps, you will notice that at some point the CPU frequency doesn't go any higher (it's somewhere about 80-85C, but depends on the CPU).
High temps shouldn't cause instability because these CPUs automatically manage voltages and frequencies. Instead of instability, you will see lower than expected performance ... but it still shouldn't cause other issues.
I'm not talking about a situation when someone uses a cooler designed for 100W CPUs on a 200W CPU.

In short, it's normal to see 95C on a 360 AIO when a CPU like yours runs at 100% load for an extended time. This is why many users set lower CPU voltage, which, in most cases, gives you a higher core boost due to lower temps. Try to play with something around 1.25V and check how the CPU acts.

If you want to overclock anything, I recommend using hwinfo64, as it tells you if there is thermal throttling, a too-low power limit, or other things that cause the CPU to run at a lower than expected frequency.

I definitely don't understand this. I read somewhere that throttling kicks in at 90C. So I was hoping to keep it under. Appreciate the info.

 

[Woomack]

I definitely don't understand this. I read somewhere that throttling kicks in at 90C. So I was hoping to keep it under. Appreciate the info.

I don't call it throttling, as the default clock is much lower than that of the slightly overheating CPU, so it's still within the declared frequency range. For the 9900X, the base/all-core clock is 4.4GHz. Even if you see 95C, then it probably keeps 200-600MHz more, so 4.6-5.0GHz (I'm not sure exactly, but this is how my 7950X acts). It won't boost to the max clock or keep high clocks for longer when the temp is too high.

 

[freeagent]

Trying to figure out why my CPU gets so hot while stress testing with prime95

It is only one of the harder mainstream loads you could ever place on a CPU.

 

[dumpa]

It is only one of the harder mainstream loads you could ever place on a CPU.

I get that but it always comes out with 1 error and it says hardware fault. Not sure if it is the heat or what. Everything is running stock.

 

[freeagent]

That I could not tell you.. but to me an error is an error, and it is unstable somewhere..