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cmeisenzahl

macrumors 6502
Oct 7, 2005
332
27
Sound like you have given up trying but...

I shaved about 5-8% of the peak temps by using Tuniq TX-4 thermal paste and also using a Newer Tech side stand.

I'm interested in that stand. Can you post a link? Or tell me more about it?

I have a late 2012 Mini.

Thanks very much in advance,
Chris
 

FreakinEurekan

macrumors 603
Sep 8, 2011
5,525
2,586
I would be very hesitant to run with the cover off, or with modified openings. Apple's design engineers are very smart guys, and they know what the airflow is over the various components. They also know where to place their thermal sensors based on what that airflow is.

If you run with the cover off, or cut a hole in the cover to allow air to come in through a different path, you may very well reduce the temperature displayed from the sensors. However because the airflow is not routing the way Apple's engineers intended, it's quite possible that you are RAISING the temperature at other areas inside the case (because the airflow is no longer going across those areas).

I have no idea if this is an issue specifically with the Mac Mini but it certainly is on many computers. Law of unintended consequences.
 

mwhities

macrumors 6502a
Jul 13, 2011
899
0
Mississippi
I would be very hesitant to run with the cover off, or with modified openings. Apple's design engineers are very smart guys, and they know what the airflow is over the various components. They also know where to place their thermal sensors based on what that airflow is.

If you run with the cover off, or cut a hole in the cover to allow air to come in through a different path, you may very well reduce the temperature displayed from the sensors. However because the airflow is not routing the way Apple's engineers intended, it's quite possible that you are RAISING the temperature at other areas inside the case (because the airflow is no longer going across those areas).

I have no idea if this is an issue specifically with the Mac Mini but it certainly is on many computers. Law of unintended consequences.

Just like people with PCs. They think taking the side off helps cool it, it doesn't. No air flow. Yes of course, put a fan on their but, the fans in the case were designed to make the air flow properly. Plus, my desk is way to small to add a box fan on it... (If I had a PC. :p)
 

seveej

macrumors 6502a
Dec 14, 2009
827
51
Helsinki, Finland
This might be one of those cases, where people only have opinions to present, but very few facts, as facts would necessitate hindsight.

One of the few reasons why I can accept that a Mini would be able to handle those kinds of temps is that the PSU is external (I'm thinking of the 1st gen TimeCapsule debacle).

That said, I honestly do not think that high temperatures benefit the longevity of any electric components.

OP, I would start worrying if and when it starts to seem clear that the chassis is not able to transfer the excess heat outside of the box. It would help if you could supply us with temperature readings from other sensors as well as an ambient temperature.

RGDS,
 

thestickman

macrumors regular
Original poster
Nov 21, 2010
219
18
Jacksonville, FL
This might be one of those cases, where people only have opinions to present, but very few facts, as facts would necessitate hindsight.

One of the few reasons why I can accept that a Mini would be able to handle those kinds of temps is that the PSU is external (I'm thinking of the 1st gen TimeCapsule debacle).

That said, I honestly do not think that high temperatures benefit the longevity of any electric components.

OP, I would start worrying if and when it starts to seem clear that the chassis is not able to transfer the excess heat outside of the box. It would help if you could supply us with temperature readings from other sensors as well as an ambient temperature.

RGDS,

I concur regarding excessive heat shortening the life of the mini in general!

Just opened up a huge (many tracks-many plugins) song in Studio One. Just loading it up sends the CPU to 150F.

Memory bank is at 117
Memory module is at 128
HD is at 85F
Ambient is 110F
Ambient 2 is 106F
power supply is at 106

All this while the song is loaded & while I type via chrome. Also, smc fan control is running at 2600 rpm.
 

seveej

macrumors 6502a
Dec 14, 2009
827
51
Helsinki, Finland
Just opened up a huge (many tracks-many plugins) song in Studio One. Just loading it up sends the CPU to 150F.

Memory bank is at 117
Memory module is at 128
HD is at 85F
Ambient is 110F
Ambient 2 is 106F
power supply is at 106

So were these numbers shortly after starting up or taking the machine out of sleep? I mean, that if the HD sensor is correct, then the ambient temperature rises pretty quick.
Also, the ambient is basically what the machine uses to cool its internal components, implying that:
- in the long term, all components will have a heat >= ambient
- as ambient temp rises, cooling efficiency is lessened.

It's a long time since I had a mini to play with, but these ambient temps seem waay too high for any decent airflow through the machine ( thestickman, what's your room temps at?).

RGDS,

----------

One of the few reasons why I can accept that a Mini would be able to handle those kinds of temps is that the PSU is external (I'm thinking of the 1st gen TimeCapsule debacle).

Ouch. Scratch that for all Alu Mini's. I admit I had no idea Apple had moved the PSU into the chassis. IMNSHO, a dumb move.

RGDS,
 

Cape Dave

Contributor
Nov 16, 2012
2,294
1,565
Northeast
I would be very hesitant to run with the cover off, or with modified openings. Apple's design engineers are very smart guys, and they know what the airflow is over the various components. They also know where to place their thermal sensors based on what that airflow is.

If you run with the cover off, or cut a hole in the cover to allow air to come in through a different path, you may very well reduce the temperature displayed from the sensors. However because the airflow is not routing the way Apple's engineers intended, it's quite possible that you are RAISING the temperature at other areas inside the case (because the airflow is no longer going across those areas).

I have no idea if this is an issue specifically with the Mac Mini but it certainly is on many computers. Law of unintended consequences.

That is an excellent point. I think the bottom line is that there simply needs to be a bigger thermal envelope for the mini. I HATE for my electronics to run hot. I say a very slightly bigger case with proportionately better airflow wold be a big help. Say like maybe a quarter inch taller or something like that. Could also help make it quieter.
 

Cocoy

macrumors newbie
Jan 11, 2008
5
0
Run Apple Hardware Test

Happened to my mbp. Went scary hot. Turns out the authorized repair guys i bought mine to forgot to put plug the fan in when they replaced the logic board.

In your case, it is important to diagnose what's wrong with the Mac. Is the machine's fan working? Best way to figure that out is the Apple Hardware Test. See Apple support doc.

if it fails, best to bring it to a genius, asap.
 

thestickman

macrumors regular
Original poster
Nov 21, 2010
219
18
Jacksonville, FL
Happened to my mbp. Went scary hot. Turns out the authorized repair guys i bought mine to forgot to put plug the fan in when they replaced the logic board.

In your case, it is important to diagnose what's wrong with the Mac. Is the machine's fan working? Best way to figure that out is the Apple Hardware Test. See Apple support doc.


if it fails, best to bring it to a genius, asap.

I've run the test both times & the mini passed both times without issue.

----------

Try resetting the SMC--instructions here.

Have done that at least 5+ times. No change, sadly.
 

Dizzler

macrumors regular
Apr 28, 2009
133
14
Ouch. Scratch that for all Alu Mini's. I admit I had no idea Apple had moved the PSU into the chassis. IMNSHO, a dumb move.

RGDS,

I agree 100%. I have an older Mini with external PSU and it runs flawlessly, albeit a bit slower than the newer ones. It also runs cool and quiet. Long live the external PSU!

And it even has a DVD drive!

Diz
 

valdigre

macrumors member
Jun 20, 2007
66
9
Dublin, Ireland
I concur on the tuniq tx-4 and newertech side stand.
Using in this combination, my 2012 i7 2.6 runs at around 95-100 degrees Celsius tops, running Boinc - 8 threads.

Also, I have an external 120 mm fan that blows air on the front edge of the mini case (where the black cover has a space for sucking in the air for the fan) and believe it or not, it decreases the idle temp for the mini further by 5 degrees on average, less in high use.

Thermal paste itself made a significant difference, no more throttling happening.
 
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