Re: Intel Mini Temperatures
- From: MNP <reply.to.group@xxxxxxxxxxx>
- Date: Fri, 21 Dec 2007 00:46:44 -0600
I was wondering how these compare with stock Intel Mini readings
using Temperature Monitor.
The stock Mac mini readings (on several units--one that I own and
several that I administer) are much higher. Temperatures for the CPU
are about 120-150 degrees (F) and the hard drive is usually around 90
or so.
And you're using the same program - Temperature Monitor? Are the temps
similar with different Mini models I wonder?
Right now ambient temp is around 65 F. Its about 2 feet off the ground
yet the temp of the CPU Core 1 is 53 F.
CPU A Heatsink 68 F
CPU A Temperature Diode 77 F
Northbridge Position 1 73 F
Northbridge Position 2 71 F
Hard drive 71 F.
Temperature concern was one of the things I mentioned when I typed up
a review:
http://12.206.251.215/mmintelreview/
I think you're spot on about the high temperature of the exhausted air.
There was an extensive discussion here with many intelligent and well
educated people not able to grasp the simple concept of linking high
heat inside with high heat being expelled. One indicates the other.
http://www.flickr.com/photos/9433215@N03/
Here it shows how the fan cools the hard drive and everything else,
except the bottom of course. But I purposely put it on the DVDrom.
Cool metal makes a nice cooling environment for that heatpad (as I
rarely use the DVD. Later I'll get a slab of aluminum or an old
heatsink for it. But what would be far preferable is to chuck the
bottom completely and put a heatsink (say from a chipset) on the video
component that is generating the heat.
What you might try instead of the 120mm fan is the smcFanControl
utility. It allows you to turn up the speed of the built in fan, and
that in turn lets you put your mini back together so it looks right.
Seriously--turning the fan up to maybe 2500-3000 RPM cooled all of
mine down quite significantly.
The internal fan did a poor job of cooling and made a racket if it was
ramped up. Not an option unless I worked in a facility with a deafening
amount of ambient noise! :) The 120mm fan is great. What I need now
is to replace that tiny heatsink of the Mini with something else. I was
looking and looking but couldn't find any CPU heatsinks that had a small
enough mounting area to fit. Then I thought of a video card heatsink.
Something like this should be able to fit.
http://www.thermalright.com/new_a_page/product_page/vga/hr03gt/product_vg
a_cooler_hr03gt.htm
I would have to modify the mounting clips but that shouldn't be
difficult. The heatpipes may get in the way in that one but there are
others that should work. That should certainly pull a lot more heat
away from that cpu than the stock one that has so little surface area.
Then I can overclock it safely.
I wonder if any of these sensors are close to the reading of the
ambient air?
I really don't know for sure. Every bit of information I've ever
picked up about the temperature sensors state that the readings are
approximate. I'm not so sure I agree with that. They seem pretty close
to reality, assuming my IR thermometer is accurate.
I still haven't sourced a laser thermometer. Guess I'll have to go Ebay
for that since my area is pretty useless for anything interesting. That
way I can detect small temperature changes fast to know if I'm on the
right track when I'm experimenting with things. If one could mount the
hard drive in a frame in the same plane as the video chipset heatsink
(on the bottom of the Mini's motherboard) you could cool both extremely
well. With the GPU heatsink on the CPU you could probably run both fans
at 5 volts for total inaudibility. The whine of the hard drive would be
the only noise at all. And I'm working on a design to squash that - for
a multi drive 10k rpm Raid 0 system which would really put out a
significant whine, to be sure. But with 10k drives dropping in price it
sure is great performance for the money. Especially as OS X has great
software Raid 0 performance. 4 x 36gb Raptors should be able to be
acquired for $150. That is stunning performance for the money. But
that's for a different machine. Or the Mini if Apple adds Sata hub
replicator compatibility later.
.
- References:
- Re: Intel Mini Temperatures
- From: wm_walsh
- Re: Intel Mini Temperatures
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