i5-8600 non-K temperatures?

[CuriousMike]

I recently updated my son's gaming computer with a simple Z370 board an a i5-8600 non-K.
During his normal (heavy gaming) usage, the CPU was registering > 90' regularly.
He has a large case with front intake fans, and a rear-top-side(GPU) exhaust fan.
The persistent > 90'C temps bugged me, so I purchased him a "beQuiet Shadow Rock 2" HSF from the local computer store.
The thing is massive.
We got it installed, and it immediately was > 90' -- he launched a game and it went over 100'.

OK - mistake found. I had mounted the backplate in the wrong orientation.

After rotating the backplate, his gaming temps are now in the low-mid 70's. Running the FurMark CPU stress test, he see's 82-83.

Does this seem to be "in the ballpark?"

It still seems too warm to me - it's a non-K chip in a large case with lots of airflow.

My only point of *reference is from a review where it looks like they used a water-cooler (?) and hit a max of 76'. If that's apples-to-apples, then I'd feel better.

I just have this notion that recent Intel chips (particularly non-K) are super energy efficient and should be running cooler.


* https://www.guru3d.com/articles_pages/intel_core_i5_8600_processor_(65w)_review,5.html

 

[UsandThem]

The temps seem a little high, but the Shadow Rock 2 has "decent" cooling capabilities. Your temps are in line with what people get with an overclocked 8600k CPU.

What thermal paste did you use, and did you ensure you used the correct amount (and got good coverage)? Also, after you realized you put the back-plate on wrong, did you reapply the thermal paste when you fixed it?

 

[CuriousMike]

1. I used the thermal paste that came with the cooler.
2. When I disassembled the first time, it looked like it had spread nicely.
3. I did not re-apply the thermal paste when re-assembling. Would that matter? It didn't "lose" any paste when prying it apart.

 

[UsandThem]

1. I used the thermal paste that came with the cooler.
2. When I disassembled the first time, it looked like it had spread nicely.
3. I did not re-apply the thermal paste when re-assembling. Would that matter? It didn't "lose" any paste when prying it apart.

I've always applied new paste whenever I mounted the heatsink. Since yours was used for such a short period, it should be ok. However, you really should be seeing lower temps than what you are getting, so it probably wouldn't hurt to clean the old paste off, and apply some fresh paste just to rule that out as being the issue.

I know you are using the Be Quiet cooler, and I use a Noctua cooler, but for comparison purposes, my 6700k (95w TDP) CPU idles in the low 30's, and tops out in the mid-to-upper 50's when pushing it with programs like the Intel Extreme Tuning utility (or doing things like Folding@Home). Of course this is in an air conditioned house, so I don't know what your ambient temperatures are.

Also, one last thing now that I think about it, but what do you have the CPU fan profile set to in your BIOS (silent, normal, performance, etc)?

 

[CuriousMike]

(1)it probably wouldn't hurt to clean the old paste off, and apply some fresh paste just to rule that out as being the issue.

(2)so I don't know what your ambient temperatures are.

(3)but what do you have the CPU fan profile set to in your BIOS (silent, normal, performance, etc)?

1. Yutugh. It's painful getting the screws thru the backplate lined up with the HSF - but I think I'm going to have to at least try.
2. Ambient room was maybe 75' F?
3. This I haven't looked at! I'll check on that tomorrow when he's back at his computer.

The thing is idling in the low 40's. It just feels like the whole thing should be 20'C cooler then it is... the HSF is massive and is rated as decent. It feels like something is wrong.
The BIOS is a good call. I'll update this thread after I address #1 and #3.