what is the recommended temperature for a MacPro 2009 upgraded with a Intel Xeon W3680? mine is running at 85C when I max out my CPU with Handbrake. Is that too hot then?
I assume you researched upgrade your 4,1 to take a Westmere processor and how to do so properly, and probably upgrade the firmware to 5,1 version as well.
Intel does not publish all the info, but yes 85*C is on the top range cusp of what is the point where it might crash or shutdown.
If you are going to run Handbrake you should also have used SmcfanControl 2.4 and pre-set the fans to 2500 rpm range ahead of time.
If they are normally in the 35*C or less and only rarely jump into the 45-60*C range and 25-30*C when idle or surfing - "doing nothing" maybe you can rule out a bad job of thermal paste being applied and that the heatsinks were cleaned properly before installing your 6-core
How long you had it, bought new, under warranty (Your AppleCare warranty was voided but then 4,1 would be 4 yrs old now anyway) and when NOT running Handbrake all is normal? And you used Hardware Monitor to get those temps? (after all these years though there are others, I trust HM the most and iStatPro 2nd)
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85*c is totally fine. Newer i-series CPUs run upwards of 100*c. The Core i5 Mini I used to have would run 93-100*c regularly without problem.
There are different temperatures for various families of processors and what may be true for notebook i-series like i3 or i5 etc are not the same as they are for Xeon.
Guess I riled someone that thought my comment and criticism went too far huh?
SO no one knows what would be the recommended temp for the W3680? I couldn't find it on Intel's website 😟
Xeon W3680 TCase temperature limit is 67.9 Centigrade.
-- kaz-k
TCsase? so I am totally off limit under maximum load !?
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I have been curious about this, as well.
I've just upgraded my 2009 Mac Pro with a W3570 CPU. Temperature Monitor reports that my 'idle' temperature (the CPU Tdiode temp) is 42C. IStat reports the same.
Using Handbrake, Tdiode temp stabilizes at 84C (after the fans finally speed up a little). CPU cores are at 95C.
The temperatures do seem excessive, but Apple's fans don't seem to spin all that fast.
Regarding Tcase (which is 67.9C), that is Intels' upper limit for 'normal' usage. The following is an explanation by 'Intel_Karla' (presumably an Intel employee) responding to someone on the Intel Support forum.....
"Anything from the Tcase and below will be the expected temperature of the processor in normal use, anything that doesn't stress out the processor (watching movies, burning CDs, browsing the internet, creating documents, etc.) When the processor is stressed out meaning that you are running heavy processor applications that take control of the CPU or uses it at 100% the temperature will go beyond the Tcase. It can perfectly reach 90 to 95 degrees and the processor will still be OK. The cooling fan is in charge to keep that temperature there.
If the processor temperature reaches 100°C or more it will send a signal to the motherboard to shut down to prevent mayor damages and most likely it won't be possible to turn the computer back in until it cools down."
If anyone has any thoughts on this, I'd love to hear them. Applying thermal paste is not my expertise.
In my last 5-6 yrs following PC hardware enthusiastas and OC;ers I saw 85*C as the point where PRIME95 and the INTEL BurnTest would max out.
We had issues of our own with 2009 4,1 in 10.5.7 thru 10.6.1 where audio codecs? were not tuned and tweaked to work with HT and where temps would jump to above 80*C just from playing iTunes or any FW audio or other audio interface. It is 'normal' for Nehalem processor cores to jump by 10-15-20*C even just launching an app and loading program and data but instantly fall back.
Xeon are what are used by Cray and others and largest supercomputers today and by the new NSA data center in Utah (E5s).
I have never seen or read reliable user reports of i7 or Xeons hitting 100*C - they should by then or before shutdown and go into reduced mode of 50% - but most every user would have system freeze instead, took extreme cooling, and was more for testing and "How far can I OC this rig."
Apple seems to not trigger fans so anyone knowing that they will be stressing, would be well advised to boost the fans first ahead of time to take pro-active measure and means with SmcFanControl 2.4 that lets you set and use a profile to set base fan speeds of say 2000 or higher rpm. No?
"It can perfectly reach..." in a lab, not in most users experience maybe. Not in ours.
I found out that we can tweak the fan speed within iStat, so I'm now doing the same with a profile boosting up the fan where I see the temperature rise... I live in Vietnam and it is like 38-40 degrees Celcius now, so even idle it's running at 51-52...
Is there no tweaks or apps that would make the fan speed up automatically ? I mean it should be a program that's quite simple to write. Having to change this manually is not so safe... I don't keep my eye on the temperature every minute... I hope someone can help me find an app for boosting the fans automatically when it reaches a preset temperature. Anyone know of an app for this ?
SmcFanControl 2.4+
Hi,
I know this is an old post but I've been doing some searches regarding this same question and ended up finding this thread. I recently upgraded my 2009 to the W3680. My readings are CPU 32C and Heatsink 30C only running safary (ML), If running Lightroom or Photoshop it goes up 5 degrees. It's been only three days and the thermal compound hasn't cured yet. I'm assuming that it will (maybe) go down about 3 degrees once its cured.
Ambient temp is about 55F here in Maryland which helps a lot.
I also agree with the Hatter about the the thermal application. I makes a huge difference the way it's applied. I tried my best as far as being carefull and I hope I got it right. Too much or too little can throw off the CPU temps.
I upgraded my 2009 Mac Pro with a 3.2GHz quad CPU (not the hex like you did).
My 'idle' temperature for cpu diode is 99F.
I'm curious to know what temps you will see with the W3680 under stress. Would you mind performing a stress test and reporting the result?
To max all cores, you can enter the 'yes' command in terminal. Here is the command to enter:
yes > /dev/null &Do about 10 of these to get you cpu cores maxed out. Let it run for 20 minutes or so and terminate the processes with:
killall yes
You can monitor the Cpu Diode temperature with the free trial version of iStat. It also shows fan speeds.
I'd love to know how high your diode temp rises and at what point the BOOST, Intake and Exhaust fans begin to speed up.
Thanks in advance.
Hi Studio K.
Sure, I'll be doing the test today when I get home and I'll post the results because I very curious too about it. I have the Istat installed and I'll be doing it in Fareigheight.
As I mentioned above, I'm hoping I get lower temps as the thermal compound settles. I took care of other things that could could influence the temps to rise. For instance, the inside of the computer is completly clean (no dust), did that prior the CPU swap, computer is located where the ambient air flows freely (no obstructions), nothing hogging the CPU on the background (checked using active monitor).
Not sure why I'm a little paranoid abou this maybe because I did the swap myself an need some peace of mind that I did it right. The funny thing is that my Mac 1.1 2.66 was and is the best space heater I have ever had and never went down on me due to overheating 🙂.
Marcos_G wrote:
Not sure why I'm a little paranoid abou this maybe because I did the swap myself an need some peace of mind that I did it right. 🙂.
I can relate to your concern. I swapped my CPU and, only then, did I become interested in monitoring tempertures and fanspeeds----just to make sure everything was alright after I performed 'major surgery' on the machine.
Now I would like to compare notes with someone else who has done a similar procedure on the same model of Mac Pro.
Thanks for taking an interest.
In iStat, Also pay attention to 'CPU Core0 Relative to....' reading. It means relative to 'Prochot'. Prochot (or 'Processor Hot) is, if I'm remembering correctly, the maximum temp that your cores should reach before there is trouble. Istat, I believe, defines this as 100C or 212F.
It's a countdown measurement, so the HIGHER the temp, the better. See how low the reading gets when your stressing your CPU.
What is the recommended temperature for a MacPro 2009 upgraded with a Intel Xeon W3680?