I suspect not much will happen - how could the heat sink pull more air through than the internal fan does, unless you have forced air intake? (Turbo
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2018 mini 3.2ghz I7 temps?
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I suspect not much will happen - how could the heat sink pull more air through than the internal fan does, unless you have forced air intake? (Turbo
)
I suspect not much will happen - how could the heat sink pull more air through than the internal fan does, unless you have forced air intake? (Turbo
The case should get more cooler air than before. A 14cm fan just transportates more air than the small built in fan.
Let's see if it works. I'm not sure yet too. ;-)
Especially the default 1700 rpm at which the internal fan is running at normal work / idling is not enough to keep the temperature low. The additional fan should help here. And it's more silence than running the internal fan at higher speed.
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I really don't understand why they removed the pulsing led when sleeping. when I read the previous page I was going to suggest that the Mini was not actually sleeping (after 10 hours it should be cold), then I read the update and it was due to a non-sleep issue.
How are we supposed to know if the Mini is sleeping?
If it is silent, that's almost impossible (unless using a Watt metter?)
How are we supposed to know if the Mini is sleeping?
If it is silent, that's almost impossible (unless using a Watt metter?)
You can change the internal fan to do as you wish. Macs fan control is the program.
I have finished my Glory Blow Hole today.
The work was worth it. The whole Mac is way cooler now. Especially components like SSD and Airport stay much cooler. And in idle (with watching Twitch) the CPU stays at below 50° instead of 70° (even without hearing the Glory Blow Hole).
For heavy work loads the CPU got an increase of ~11 % faster rendering in tasks like Cinebench:
Before 1130, after 1259.
For longer tasks the benfit is much smaller for the CPU. For a rendering of ~50 Minutes in Cinema 4D it saves me 2 minutes now.
New Thermal Compound which I applied after was not worth the work. It's equal to my tests before.
But it might be better in some days. Thermal paste sometimes needs a while.
The work was worth it. The whole Mac is way cooler now. Especially components like SSD and Airport stay much cooler. And in idle (with watching Twitch) the CPU stays at below 50° instead of 70° (even without hearing the Glory Blow Hole).
For heavy work loads the CPU got an increase of ~11 % faster rendering in tasks like Cinebench:
Before 1130, after 1259.
For longer tasks the benfit is much smaller for the CPU. For a rendering of ~50 Minutes in Cinema 4D it saves me 2 minutes now.
New Thermal Compound which I applied after was not worth the work. It's equal to my tests before.
But it might be better in some days. Thermal paste sometimes needs a while.
Could you do a Geekbench test please?
It would also be really interesting to see the output of intel power gadget while the task runs.
I can do that later.
But I don't expect to get higher scores than other i7 Mac Minis. The CPU at geekbench does not get high temperatures. So throttling is no problem here and my Glory Blow Hole does not really help.
Temperature is a problem in tasks like Cinema 4D, After Effects, Premiere, Final Cut Pro... that's where the Glory Blow Hole helps keeping the CPU cold and the Megahertz higher.
[doublepost=1544300560][/doublepost]Here's my result:
https://browser.geekbench.com/v4/cpu/11172557
The Intel Power Gadget Output looks quite boring to me... I have not recorded it. Do you really want it?
[doublepost=1544301799][/doublepost]Here another run: https://browser.geekbench.com/v4/cpu/11172775
It seems that the first run is always the slowest at Geekbench
But as expected it's in normal range. Temperature is very low at the tests.
Edit: Single Core Speed is not in normal range as user Spectrum noticed later. It's top 3 at Geekbench. Maybe here the second fan helped?
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I'm watching twitch, with various things I run in the background, and my CPU temps are 36-37c. Airport card is 30c. Strange that with all that work you're getting 50c.
Just ran geek bench and got 5798 which is lower than both of yours for single cord and 27386 which is higher than both of yours. Weird. Temp during the test was in the upper 40's.
Here's a photo of the Mac Mini called Kenobi and it's Glory Blow Hole. It's almost not visible...
... except if you lift Kenobi.
From below you can see Kenobi without the plastic cap.
[doublepost=1544304843][/doublepost]
Maybe it's because I have 3 screens attached? Don't know, but on my other Macs this has a huge influence on the temperature of the GPU in the CPU. But I got the (up to) 70°C only after some hours.
How fast is your internal fan spinning?
Geekbench is no good benchmark to test temperatures because it never gets near the limits. Even Cinebench isn't - it's just too short.
... except if you lift Kenobi.
From below you can see Kenobi without the plastic cap.
[doublepost=1544304843][/doublepost]
Maybe it's because I have 3 screens attached? Don't know, but on my other Macs this has a huge influence on the temperature of the GPU in the CPU. But I got the (up to) 70°C only after some hours.
How fast is your internal fan spinning?
Geekbench is no good benchmark to test temperatures because it never gets near the limits. Even Cinebench isn't - it's just too short.
The fan is at 1700rpm right now. It's almost always there or at 4400rpm during long encodes. It doesn't seem to have an in between.
I think that is one of the highest single core speeds ever recorded!I can do that later.
But I don't expect to get higher scores than other i7 Mac Minis. The CPU at geekbench does not get high temperatures. So throttling is no problem here and my Glory Blow Hole does not really help.
Temperature is a problem in tasks like Cinema 4D, After Effects, Premiere, Final Cut Pro... that's where the Glory Blow Hole helps keeping the CPU cold and the Megahertz higher.
[doublepost=1544300560][/doublepost]Here's my result:
https://browser.geekbench.com/v4/cpu/11172557
View attachment 809479
The Intel Power Gadget Output looks quite boring to me... I have not recorded it. Do you really want it?
[doublepost=1544301799][/doublepost]Here another run: https://browser.geekbench.com/v4/cpu/11172775
It seems that the first run is always the slowest at Geekbench
View attachment 809484
But as expected it's in normal range. Temperature is very low at the tests.
Okay, same here. It's weird that our temperatures (without my Glory Blow Hole) are so different. I have no idea why.
Before the hole I had an SSD temperature of 51° and Airport temperature of 48° while rendering (all cores 100%) for 45 minutes. With the hole I got 43° and 36°.
[doublepost=1544305703][/doublepost]
I found 2 records which were faster ;-)
http://browser.geekbench.com/v4/cpu/search?dir=desc&q=mac+mini&sort=score
I'm curious about what impact ambient temperature has on the short-term temperature of the CPU.
I keep my mini on an open windowsill. The outside temperature is falling and the CPU temperature, according to Intel's Power Gadget, is falling with it. Currently about 22℃/72℉ inside, and 0℃/32℉ outside, with my mini somewhere in between, it is idling at 31℃/88℉. By idling, I mean that things like Adobe's desktop utility, Bluetooth, WiFi, etc. are running in the background, and the mini is driving a 32", 3840x2160 monitor. By opening Safari and writing this, I've caused the temperature to go up 1℃/1.8℉.
We're supposed to drop to -4℃/24℉ tonight, and I'll update this later.
I keep my mini on an open windowsill. The outside temperature is falling and the CPU temperature, according to Intel's Power Gadget, is falling with it. Currently about 22℃/72℉ inside, and 0℃/32℉ outside, with my mini somewhere in between, it is idling at 31℃/88℉. By idling, I mean that things like Adobe's desktop utility, Bluetooth, WiFi, etc. are running in the background, and the mini is driving a 32", 3840x2160 monitor. By opening Safari and writing this, I've caused the temperature to go up 1℃/1.8℉.
We're supposed to drop to -4℃/24℉ tonight, and I'll update this later.
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What insight are we to gain from your windowsill experiment? Close the window, keep warm, enjoy the Mac.
D
What insight are we to gain from your windowsill experiment? Close the window, keep warm, enjoy the Mac.
D
I'm 1m/3' from the window and quite warm, thank you.
I'm in the camp that believes that Intel and Apple engineers know what they are doing. Plus I have AppleCare. This means that I am not fussed by my mini's temperature.
That said, and as I hoped was clear from the first sentence in my post about this, I am curious about the relationship between ambient temperature and short-term CPU temperature. I do not think that the relationship is obvious. Indeed, I find it interesting that thus far I am seeing the CPU's short-term temperature, as measured by Intel's Power Gadget, go down in lockstep with the ambient temperature.
If that doesn't interest you, cool.
As for the mini being on the sill of an open window, it is not an experiment; it is, as I also said in my first post, where I keep it.
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Now my Mac mini is officially the third fastest in Single Core in the list... and from these fast Single Core Macs it still has good Multicore values.
Yeah I saw that. You are in the top 99.9% for single core and top 95% for multi.Now my Mac mini is officially the third fastest in Single Core in the list... and from these fast Single Core Macs it still has good Multicore values.
The question is whether your fan mod enabled the chip to stay in a higher power state (more heat geneation), or whether it was just a coincidence. If anything, one would have imagined your MC to have benefited more.
Q: which, and how many, monitors (or external peripherals) do you have attached to the mini?
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Three Dell U2412M, one 2,5" 1TB SSD on USB-C, one 2,5" 4TB HDD on USB, Logitech Quickcam on USB hub, keyboard, mouse, multi card reader and of course speakers. Additionally some Bluetooth devices (mostly headphones). WiFI is enabled (for AirDrop), normally I'm using 1Gbit on my 10 Gbit LAN port (I'll wait for upgrading my LAN to 10Gbit till Synology has good 10 Gbit desktop NAS for Flash drives).
I'd be interested to see what happens to your score (if anything) if you were to unplug everything except one of the Dells.
for the person that understands well what this thread is about
what has been the conclusion on this topic?
could just put into a new, much cleaner post, and just link it here
---
on https://egpu.io/forums/gpu-monitor-peripherals/mac-mini-2018-thermal-solutions-thread/
a possibly outdated comment says that:
"a) Although it's not desirable, the CPU is designed to withstand and operate under these high temperatures and that, historically, Apple's record when it comes to CPU failures is very low (if non-existent)."
1. why is it not desirable? if there no problems why is not desirable?
2. how exactly is the cpu made to 'withstand and operate under these high temperatures'?
"b) Even if one found a DIY solution to cool the CPU, the CPU is designed (supposedly) to simply use the thermal headroom to go even faster until it reaches the ceiling again. You have to put the mini in a freezer until it eventually reached its theoretical turbo speed limit."
1. what is the purpose of finding a 'DIY solution to cool the CPU' if it would be irrelevant or ultimately ineffective?
"c) just buy AppleCare. This is the best thermal solution because you're insuring the Mac Mini for 3 years"
1. why would you need to insure mini for 3 y? it seems that some are overly & excessively cautious cos many many computers lasts a long time with any 'assurance'
what has been the conclusion on this topic?
could just put into a new, much cleaner post, and just link it here
---
on https://egpu.io/forums/gpu-monitor-peripherals/mac-mini-2018-thermal-solutions-thread/
a possibly outdated comment says that:
"a) Although it's not desirable, the CPU is designed to withstand and operate under these high temperatures and that, historically, Apple's record when it comes to CPU failures is very low (if non-existent)."
1. why is it not desirable? if there no problems why is not desirable?
2. how exactly is the cpu made to 'withstand and operate under these high temperatures'?
"b) Even if one found a DIY solution to cool the CPU, the CPU is designed (supposedly) to simply use the thermal headroom to go even faster until it reaches the ceiling again. You have to put the mini in a freezer until it eventually reached its theoretical turbo speed limit."
1. what is the purpose of finding a 'DIY solution to cool the CPU' if it would be irrelevant or ultimately ineffective?
"c) just buy AppleCare. This is the best thermal solution because you're insuring the Mac Mini for 3 years"
1. why would you need to insure mini for 3 y? it seems that some are overly & excessively cautious cos many many computers lasts a long time with any 'assurance'
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According to Intel Power Gadget 3.5.5, is it normal for my MM i7, 3.2Ghz 6 Core to always run between (Frequency Core) 4.30 & 4.36, no matter what I do? Even when idling, with only a couple apps opened, the number does not change.