Mac Pro Temperature question

Hi,

77 is very high, my macpro flat out is only reaching mid 50s.

For me over 50 is high.

Cheers

Andy

Yeah, I'm almost 100% sure that it is 56.5c Nothing else even
makes sense. For sure default values in a software package
won't be trustworthy.

Shrug. I think contacting Intel may be the best way to know.

shrug

you must not be very demanding of your mac pro, and could probably get by with an imac if you have never seen it above 50. you have obviously never used imovie or compressor of fcp. As i type this i am exporting a high definition video from imovie, and here are my temps

core 1 72c/161f
core2 67c/152.6f
core3 66c/154.4f
core4 67c/152.6f

these are on a 3ghz machine. i don't know how you keep your below 50. you must only surf the net, and read email. actaully you probably could get by with a mini.

Ambient temps probably have something to do with it too. When I am merely surfing the web, as I am currently, Hardware Montitor is telling me 33 and 27 for the two cores it is showing. For some reason it is only showing those two cores.

you must not be very demanding of your mac pro, and
could probably get by with an imac if you have never
seen it above 50. you have obviously never used
imovie or compressor of fcp. As i type this i am
exporting a high definition video from imovie, and
here are my temps

core 1 72c/161f
core2 67c/152.6f
core3 66c/154.4f
core4 67c/152.6f

these are on a 3ghz machine. i don't know how you
keep your below 50. you must only surf the net, and
read email. actaully you probably could get by with
a mini.

Well, in defence of Andrew (after you tried to burn him low)
I can say that for a 5150 mine also never hits over 47. At
least since I've been using FanControl. I run LW3D and that
keeps all 4 procs at EXACTLY 100% for as long as it takes to
render a frame (most recent example was 70min. ea.) then
pauses for aprox 1sec. while it saves that frame to disk
and does it again. I do this for hours on end. I never
really watched the proc temps before I started using Fan
Control http://www.lobotomo.com/products/FanControl/index.html
but after using it and setting the fan speeds to 1300 I can
tell you that my procs NEVER EVER hit 47c and it's 25c (about
average I guess) in the room here which MacPro and I share.

So my question is: Is it a matter of Andrew not needing a
MacPro? Or you not knowing how to maintain one properly?

I'm convinced it's the later. So nya nya nya... 😀

Guys, please don't confuse core temperature and case temperture. And read up on thermal flow...

Cheers
Steffen.

When I upgraded to Hardware Monitor 4.0, I had to go in and delete some, add some others, for the preferences and sensors to all show up properly. There are two CPU heatsinks, that were not there previously.

Seems odd that there would be 6ºC variation in temps. That, not the temperature itself, would be more of a concern to me.

PS: any reason for buying and using a MacPro (or anything else) is a good reason. In the same way there is no wrong reason. If anything, some would find fault with some of the logic and whether it was the most cost-effective, but hey, if you want 10K Raptor or video upgrades, or 4GB RAM some day.... Mac Pro is a great machine AND investment. And is freaking quiet (after going numb from noise of older systems).

Cold is good. I use to work in a server room where wool socks and thick soles were required to keep your feet from freezing standing on those elevated floors.

you must not be very demanding of your mac pro, and
could probably get by with an imac if you have never
seen it above 50. you have obviously never used
imovie or compressor of fcp. As i type this i am
exporting a high definition video from imovie, and
here are my temps

core 1 72c/161f
core2 67c/152.6f
core3 66c/154.4f
core4 67c/152.6f

these are on a 3ghz machine. i don't know how you
keep your below 50. you must only surf the net, and
read email. actaully you probably could get by with
a mini.

If you had read my previous email you would have seen that I was talking about all cores running at 100% then cpu is 58. Which I think is high, the fans should keep the temp < 50 in my eyes.

I am running code that usually runs on a 64 processor Irix box with 48GB Ram so the MacPro is slow never mind a mini.

Cheers

Andy

Ok now, good to see we are having a little debate
going on here!

Hehe...

I think that what needs to be adressed is Harware and
Tempeture Moniters claim for displaying information
about what Apple has stated to be the max core temps.
Tempeture Monitor 4.0 as well as Intel Documents say
that the processors (5100 series) have built in
saftey meaussures to shut down if core temps reach
beyond a specific limit to prevet damage to the
procs. So if this is true and my reaching 77c is
"bad" then my comp should have shut down due to these
saftey measures implimented in the hardware.

Well, no. It says that the shut-off "way" is one way of
cooling. As the temp goes up the proc gets slower and
slower. It then says that is not really recomended so
I doubt Apple is doing that. Especially considering
that people are overheating their procs to 70 and 80
and yet don't complain that the proc is behaving like
a DX33 or something old and slow.

Tesselator...back to our little PDF form Intel
http://download.intel.com/design/Xeon/datashts/3133550
1.pdf . It seems to mee that table 6-4 and 6-5 on
page 81 clearly show the max TDP as being 80w for the
5160. If I am missing somthiing please let me know.

80 Watts. Yes.
Watts != degrees C.
Watts = Volts X Amps
It's a measure of power.
It's not a measure of temperature.
Although it does relate to temperature in a big way.

Guys, please don't confuse core temperature and case
temperture. And read up on thermal flow...

No one is.

But case temp is probably NOT what you are thinking it is.
I mean the definition of "case Temp".

ok, I asked Intel as I said I would, and hopefully this will
put an end to folks thinking that their procs are ok running
at 10 or 20 degrees over the recomended spec. These are
server grade procs. Xeons can often be run at overheated
temps without crashing like the consumer grade components.
This is not garrenteed tho and you ARE asking to have
problems.

Here's the full quote from Intel Tech:


-----------------------------------------------------------------------------
Hello James,

Thank you for contacting Intel(R) Technical Support.

I understand that you are seeking information regarding the operating temperature of the Intel(R) Xeon(R) processors 5150 and 5160.

The maximum operating temperature of the Intel(R) Xeon(R) processor 5150 is 65 degrees Celsius.
The maximum operating temperature of the Intel(R) Xeon(R) processor 5160 is 56.5 degrees Celsius.
As long as the processor is operating under this temperature it is operating within specifications. We recommend setting any thermal alarms about three (3) degrees below the maximum recommended temperature for the processor. We do not have a normal operating temperature for the processor as this temperature will vary depending on the chassis and other hardware installed on the system as well as the actual load the software is placing on the processor.

You can double check this above mentioned temperatures at the following websites:
Recommended temperature for the Intel(R) Xeon(R) processor 5150:
http://processorfinder.intel.com/details.aspx?sSpec=SL9RU

Recommended temperature for the Intel(R) Xeon(R) processor 5160:
http://processorfinder.intel.com/Details.aspx?ProcFam=0&sSpec=SL9RT&OrdCode=

Currently, we do not have the minimum and maximum values for the cores of the processor, nor for the CPU A and CPU B Heatsink.

Please do not hesitate to contact us again if you need further assistance.

Sincerely,

Adolfo S.
Intel(R) Technical Support

Intel(R) Processor Support Web Site:
http://support.intel.com/support/processors/index.htm

Intel is a registered trademark of Intel Corporation or its subsidiaries in the United States and other countries.
-----------------------------------------------------------------------------



This would also seem to imply that Apple does also NOT have
the core max and min values.

I have to admitt after everything that even I am getting
a little conused about all this.

Sure, " The maximum operating temperature of the Intel(R)
Xeon(R) processor 5160 is 56.5 degrees Celsius." seems
straight forward enough. But define "Processor" when our
sensors say "core" and "Heat Sync" separatly. Add to that
the fact that there are two very different items we can
call a "Heat Sync". One is that tin cover I linked to
(see photo) and the other is a very tall tower of fins
that directly touches that tin (or aluminium) cover plate.

Though I suppose it would NOT make any sense to sensor
the tower of fins. It's temp would vary ALOT from point
to point and not be useful.

Dang it! Why the heck don't we have a sensor called "Processor". LOL!