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Update to 12x3,46ghz but danger temp. Help!

qwarkas

qwarkas

macrumors member
Original poster
Apr 7, 2010
41
0
Vyborg in Russia
I updated a couple of processors, originally had a pair of quad-core. But after 10 minutes, rendering the program CPU processor temperature is increased to 110, and only then fans start a little more noise! Why?! Heatsink is very hot, you can fry scrambled eggs! This is terrible! My poppies explode! It is not fit for a reliable and stable operation! What to do? Establish good thermal paste and clean the dust.





 
El Awesome said:
Maybe you didn´t attach the heatsink correctly?
Did you re-apply the thermal paste?
Click to expand...



My heat transfer is good, because the heatsink are very hot. If I set a bad thermal paste, the heatsink do not heat up. Fans abnormally quiet at 110, a little more than 110 make noise, but why? Fans up noise most at 90 or high.
 
Install iStat Menus and make a screenshot.

Intel Xeon X5690 Max TDP is 130 W while E5640 is only 80W, so with dual processors you've added 100W of heat to your system. I would go with X5670 or X5675 in my system which are only 95W just like my current X5570's.
 
I actually doubt you reached 110 degrees CELSIUS, because OS X automatically shuts down at temps like this to prevent damage.

110 degrees Fahrenheit are still okay.
 
You need to perform a SMC and PRAM reset after installing the processors. Perform these and report back.
 
I reset the settings and it helped me, thank you :). Thus the approach to a temperature of 100, a significant increase fan noise and not allowed to warm above 100. However temperature 100 at ambient temperature of 25 is not normal, and I'll work on that next, like rebuild the cooling system. I read here that people put 2 processor and has a maximum load of 75 and 35 alone, I want to do the same.

At the moment I use win7. Mac os needs to be reinstalled, because for a long time is an apple on a white screen and will not boot to the desktop. so I put the picture of a program's window

 
Forgive me if I'm incorrect here but I know from previous experience that running a Macbook Pro with Windows gave me higher temps than OS X. Could the same be possible on a Mac Pro? If it is I think you need to install OS X before taking the machine to pieces again.
Click to expand...

Those temperatures are still dangerously high. I'm surprised his system hasn't automatically shut down, I've never ever seen a processor run that hot unless something else was defective in the system.

Technically, the System Management Controller (SMC) chip should throttle the fan speeds up irregardless of the operating system to keep the chips relatively cool. Anything around 40-70*C is fine. 95*C is not.

It is entirely possible that both his system and SMC were not designed to handle such CPU heat loads, so whatever profiles SMC happens to include for the various CPUs the Mac Pro shipped with are not sufficient for properly cooling such hot CPUs.

I sure as **** wouldn't run the system like that for an extended period of time. I've never seen a system run that hot and survive for more then a year.

-SC
 
Get a better heatsink lol. If your stock heatsink and thermalpaste aren't cutting it, you change them.
 
Я наложил большее количество термопасты во второй раз, так как возможно мало положил в первый раз. Таким образом температуры стали еще ниже и вентиляторы 5 и 6, которые в первый раз не поднимали оборотов во время нагрузке, теперь ускоряются.

Maybe windows use more CPU, so more heat. I use a very heavy machine tests for win7 linx 0.6.4 - This test loads all 24 threads at 100% and memory 27gb of 32 for a long time The previous machine mac pro 6-core i7 980x also heated to 90 at long rendering in windows or apple.

linx 0.6.4 30min run








It would be interesting what the temperature on the other mac pro in the linx 0.6.4. If the temperature on the other machines will be close to 90, so everything is in the normal range
 
Looks like the fan are running strong. Open it up and physically make sure the fans are running. The intake fan may not be working properly.
 
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