Octane IV CPU Temp ~67c with <10% load...

SaxonRix

Bronze Level Poster
I've only had it since 2nd March. It's had limited use at the minute & when not in use, it's been in a laptop bag, so I'm not sure it's a dust issue.

I've just performed a stress test using the Intel Extreme Tuning Utility & these are the results (max temp was 92c, core frequency was 4.29Hz & CPU was at 99% throughout with a couple bumps to 100%), could you tell me if this is normal etc? The 'power limit throttling' pinged on a few times too, I'm assuming every time it hit 92c. Also warm air was only being pushed out of one side of the chassis, not sure if that's right or if it should be coming out of both sides?

Intel Extreme Tuning Utility Stress Test.PNG
 

SpyderTracks

We love you Ukraine
I've only had it since 2nd March. It's had limited use at the minute & when not in use, it's been in a laptop bag, so I'm not sure it's a dust issue.

I've just performed a stress test using the Intel Extreme Tuning Utility & these are the results (max temp was 92c, core frequency was 4.29Hz & CPU was at 99% throughout with a couple bumps to 100%), could you tell me if this is normal etc? The 'power limit throttling' pinged on a few times too, I'm assuming every time it hit 92c. Also warm air was only being pushed out of one side of the chassis, not sure if that's right or if it should be coming out of both sides?

View attachment 11536

One side is cpu vent, the other is graphics.

There are a couple of steps you can take to reduce temps:

1. Repaste the cpu.

2. Undervolt it slightly. Won’t impact performance in anyway, but will further reduce temps.
 

SaxonRix

Bronze Level Poster
I recall paying for the paste 'upgrade' to 'EK-TIM ECTOTHERM THERMAL COMPOUND'. Is it a bad paste job in general?

I'll take a look at undervolting.
 

SpyderTracks

We love you Ukraine
I recall paying for the paste 'upgrade' to 'EK-TIM ECTOTHERM THERMAL COMPOUND'. Is it a bad paste job in general?

I'll take a look at undervolting.

It could be, sometimes pastes go wrong, you get a bubble or it's badly applied, happens, not much you can do about it other than repasting.

I would try undervolting first and see how you get on. It won't need to be much at all.
 

SaxonRix

Bronze Level Poster
Yea fair enough.

I've just tested undervolting. Tried -150mV first as I saw that suggested elsewhere, but that killed the system as soon as I pressed save. Ended up at -104mV, which seems stable at the minute & gave me -11c on a second run of the stress test. Will keep an eye on it though.

Stress Test -104mV.png
 

SpyderTracks

We love you Ukraine
Yea fair enough.

I've just tested undervolting. Tried -150mV first as I saw that suggested elsewhere, but that killed the system as soon as I pressed save. Ended up at -104mV, which seems stable at the minute & gave me -11c on a second run of the stress test. Will keep an eye on it though.

View attachment 11537

Fingers crossed, that's pretty impressive to reduce by 11c, hopefully it levels at that, that would be very workable.
 

Oussebon

Multiverse Poster
I've just performed a stress test using the Intel Extreme Tuning Utility & these are the results (max temp was 92c, core frequency was 4.29Hz & CPU was at 99% throughout with a couple bumps to 100%), could you tell me if this is normal etc?
I don't own the same chassis so can't say whether that's normal for the Octane, but it is actually normal for the CPU. 92 degrees is ofc very hot, but still within the CPU's tolerance so it's not thermal throttling. It does show the limitations of having a powerful desktop CPU in a laptop chassis ofc, and your lower temps having undervolted are much better.

But 4.3GHz is the normal boost frequency for an i7 8700k with load across all cores, the frequency was stable throughout your stress test, and it didn't thermal throttle, according to your graph.

The 'power limit throttling' pinged on a few times too, I'm assuming every time it hit 92c.
Throttling based on temperature is thermal throttling rather than power throttling - and although very hot your CPU didn't temperature throttle (it wouldn't thermal throttle at 92 degrees). If it power throttled, it didn't drop the frequency either. The undervolt will also reduce the chance of power throttling. So your CPU doesn't seem to be either power or thermal throttling.

Also warm air was only being pushed out of one side of the chassis, not sure if that's right or if it should be coming out of both sides?
I expect this is normal as one side will have the cooling pipes for the CPU, the other the GPU. There may be some shared pipes, but I think you're still going to have 1 side vent a lot more of each component's heat than the other.

In short your system seems ok, and much better for the undervolt :)
 
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