Mac Pro Runs Hot...


DeltaMac

macrumors G3
Jul 30, 2003
9,525
2,298
Delaware
Another followup question - Do you ever hear the fan, other than for brief periods? All the heat produced comes out of the top, so you can certainly move the nMP a few inches to make that warm air less noticeable to you.
 

mrkennethtong

macrumors member
Original poster
Sep 16, 2013
76
0
Another followup question - Do you ever hear the fan, other than for brief periods? All the heat produced comes out of the top, so you can certainly move the nMP a few inches to make that warm air less noticeable to you.
I hear the fan when I mine for Bitcoins, but only did it for fun.

Surely the thing would run better, cooler?
 

motegi

macrumors regular
May 14, 2009
197
0
sydney.au
I hear the fan when I mine for Bitcoins, but only did it for fun.

Surely the thing would run better, cooler?
You mean to say, that you are surprised that running an application that specifically puts the CPU and GPU into 100% usage over a long period made the machine heat up and the fans work harder?

You do understand how basic thermodynamics work right?
 

mrkennethtong

macrumors member
Original poster
Sep 16, 2013
76
0
I responded to a specific scenario.

Running it day to day, if you put your hand over it, it runs hot. Not mediocre. Hot.
 

DanielCoffey

macrumors 65816
Nov 15, 2010
1,186
22
Edinburgh, UK
If you want to know how well you will do at bitcoins those days with a nMP, you might like to read this... http://forums.macrumors.com/showthread.php?t=1679285

The key article is this... http://www.forbes.com/sites/warrenmeyer/2013/11/18/moores-law-on-steroids-world-computing-power-for-one-type-of-calculation-is-doubling-every-three-weeks/

If you are wanting to even pay for the electricity your nMP will use mining, you are way too late for that party. Donate your CPU time to the Folding project instead of wasting your nMP pointlessly.
 

OS6-OSX

macrumors 6502a
Jun 13, 2004
886
651
California
You should post some temps.
What your staff comes up with will be interesting
One old way to "beat the heat", was this:
Guess all PCIe cards now go in TB expansion boxes!:D
 

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Gav Mack

macrumors 68020
Jun 15, 2008
2,192
17
Sagittarius A*
I responded to a specific scenario.

Running it day to day, if you put your hand over it, it runs hot. Not mediocre. Hot.
Its thermal design is to dissipate hot air out of the top. You have a maxed out 12 core d700 model and the fan is sucking all that air to the top which is transferring all that thermal energy through the power supply and thermal core while still remaining extremely quiet.

Get one of those temperature guns like they have in that video if you are that bothered about it. If you put your hand over the top aside from warming your hand all you will be doing is making it run warmer by restricting the air flow.
 

nathan43082

macrumors member
Dec 30, 2013
84
0
Just stating a point.
Thing runs hot.
Period.
I will ask my staff to find a cooling solution tomorrow.
If you are sensing great amounts of heat being propelled away from this device, then the cooling system is doing its job. If the case is burning your fingers and yet the fan is not running, then I would start worrying. Until then, working as advertised.
 

DeltaMac

macrumors G3
Jul 30, 2003
9,525
2,298
Delaware
...
Thing runs hot.
...
I will ask my staff to find a cooling solution tomorrow.
Your nMP already provides a good cooling solution:
It has a very effective fan, and an aluminum heat chimney, plus the aluminum case which, in combination, results in a very effective heat conductor, both through the case, and up through the fan and out the top. Because of that, it will get warm, perhaps "hot" (which is a subjective assessment without numbers to back that up), which is completely normal, particularly in a high-resources activity like bitcoin mining.
That produces heat, which has to go somewhere. What other result would you expect? It's the second law of thermodynamics, if I recall my old physics class. I don't think that's changed recently.
I don't think you'll get in trouble, unless you block the air circulation :D
 

brentsg

macrumors 68040
Oct 15, 2008
3,403
761
I just stuck my hand outside.

It felt cold. Not just mediocre, but cold.

Now, has anyone learned anything quantifiable by this?

For those wondering, yes.. obviously I'll be having my staff take a look at this.
 

chabig

macrumors 603
Sep 6, 2002
5,873
3,131
At the Apple store near me, the Mac Pro runs all day. It wasn't at all hot last time I put my hand over it.
 

NT1440

macrumors G5
May 18, 2008
12,140
13,983
People seem to be ignoring this computer runs very warm...

So you're saying that you feel the heat coming from the top of the machine?

What that means is the product is doing a good job of removing that heat from the system if it is nice and warm at the top.
 

flat five

macrumors 603
Feb 6, 2007
5,568
2,589
newyorkcity
Just stating a point.

Thing runs hot.

Period.

I will ask my staff to find a cooling solution tomorrow.


don't bug them..



.. i'll invoice you tommorow. thanks


.

[edit] fwiw, i'm not trying to imply you're a (whatever) for saying it runs hot.. it probably does.. i don't have mine yet to get an opinion on whether it's warm, hot, or don't put your hands near the thing..
that said, expect the invoice shortly ;)
 
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