Not a Mac Pro… I have desktop computer. And I was just referring to the PSU temps.
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Hey guys do you think my PSU is a bit too high??
- Thread starter jjahshik32
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Not a Mac Pro… I have desktop computer. And I was just referring to the PSU temps.
oh ok.. I guess its normal for those readings with the different psu that apple might be using.
This seems way too high to me. 80C = 176F!
What is the power output rating, and how much are you drawing at load?
This seems way too high to me. 80C = 176F!
What is the power output rating, and how much are you drawing at load?
I have no idea.. its 80C for psu 1 just after I wake my mac pro from sleep.
Maybe I should take it down to the apple store and get it exchanged... damn I'd hate to drag it down to the mall...
IIRC, you were getting false readings from iStat of around 30C too high?
Let's say that is the case, then the real temp would be 50C. Acceptable. PSU's always draw power unless you unplug it.
Does the fan operate while in sleep?
If not, this would be the increase in temp. Turn the system on, and the fans activate and do its job. Then the temp drops to a presumably acceptable limit.
Let's say that is the case, then the real temp would be 50C. Acceptable. PSU's always draw power unless you unplug it.
Does the fan operate while in sleep?
If not, this would be the increase in temp. Turn the system on, and the fans activate and do its job. Then the temp drops to a presumably acceptable limit.
IIRC, you were getting false readings from iStat of around 30C too high?
Let's say that is the case, then the real temp would be 50C. Acceptable. PSU's always draw power unless you unplug it.
Does the fan operate while in sleep?
If not, this would be the increase in temp. Turn the system on, and the fans activate and do its job. Then the temp drops to a presumably acceptable limit.
I guess I'm just wanting to know what the deal is. I dont want to end up hauling this mac pro down to the apple store and getting another one and it has the same temperatures + maybe other problems like noisey or fridge noise like someone else mentioned because besides the readings showing high psu readings.. it works perfect and is very quiet.
Has anyone used windows to read the temperatures?
Interesting thing.. when I bootcamped to windows vista the cpu 0 and cpu 1 temperatures were at 65c and 60c.. but istat pro reports the cpu at 33c.. hmm..
Man screw all the temperature readings, im not going to look at any more.
Interesting thing.. when I bootcamped to windows vista the cpu 0 and cpu 1 temperatures were at 65c and 60c.. but istat pro reports the cpu at 33c.. hmm..
Man screw all the temperature readings, im not going to look at any more.
I understand. Returning computers is a PITA.
OK. A quick test. Let the system set awhile after sleep. Open the side panel, and 'touch test' the PSU housing. If it's at 80C, it will be very uncomfortable, and you will not be able to keep your fingers on it at all. 50-55C (122-131F) you can, though it is quite warm, usually about the temp of hot water at factory setting. Not nearly as accurate as an IR thermometer, but will suffice.
Hopefully, nothing to worry about.
OK. A quick test. Let the system set awhile after sleep. Open the side panel, and 'touch test' the PSU housing. If it's at 80C, it will be very uncomfortable, and you will not be able to keep your fingers on it at all. 50-55C (122-131F) you can, though it is quite warm, usually about the temp of hot water at factory setting. Not nearly as accurate as an IR thermometer, but will suffice.
Hopefully, nothing to worry about.
I understand. Returning computers is a PITA.
OK. A quick test. Let the system set awhile after sleep. Open the side panel, and 'touch test' the PSU housing. If it's at 80C, it will be very uncomfortable, and you will not be able to keep your fingers on it at all. 50-55C (122-131F) you can, though it is quite warm, usually about the temp of hot water at factory setting. Not nearly as accurate as an IR thermometer, but will suffice.
Hopefully, nothing to worry about.
Just did the testing, I put it to sleep for 25 minutes and woke the mac pro up and checked istat pro and it saids 79c for psu 1 and 65c for psu 2.
I opened the side panel and put my hands on where the psu resides and its freaking cold not even a hint of heat!! I tried to make sure and put my hand just about everywhere and its dead cold everywhere no heat whatsoever. Also I took the optical drive out and touched inner fan and its cool as hell to touch just cold.
So this just prooves it istat pro is unreliable =D
I'm just going to uninstall it and just forget about it. Thanks Nanofrog now I can just enjoy the damned thing lol.
See? No need to panic!
iStat must not be communicating with the micro controller in the PSU properly. It likely does work with the others (logic board), so those readings are likely accurate. So it may be useful to keep it, just ignore PSU readings.
I also assume that as soon as you started the computer the air blown out the PSU fan was not hot either. You can check that if you have not.
iStat must not be communicating with the micro controller in the PSU properly.
It likely does work with the others (logic board), so those readings are likely accurate. So it may be useful to keep it, just ignore PSU readings. I also assume that as soon as you started the computer the air blown out the PSU fan was not hot either. You can check that if you have not.
See? No need to panic!
iStat must not be communicating with the micro controller in the PSU properly.
I also assume that as soon as you started the computer the air blown out the PSU fan was not hot either. You can check that if you have not.
I did, I put my hand where the air exits out of the psus and it blew out cold air. =)
I do think the istat pro is accurate with everything else because the RAM area I felt some sort of barely warmness and it did read for my 16gb of RAM around the 37c-40c as well as the hdd felt almost no heat as well and was read as 29c and 32c for both of my hdd.
Yea I think I'll keep the istat pro around and ignore the power supply temps. I'm just glad I did this test because if I were to take it to the genius and showed them this reading they would look at me like I was crazy which would be true to trust a 3rd party app over how the machine physically is running perfectly.
Thanks alot, I really really really didnt want to take it to the mall and haul it all the way (apple store located in the center of the damned mall past the food court where there's gajillions of people in your way) to get it exchanged when my machine is perfectly fine and especially it runs very cool and is very quiet with no fridge noise or any buzz noise or anything. =D
Also you never know the psu that we got where the istat pro cant read maybe is the special one because I do feel that compared to the 2.8ghz 8 core mac pro that I had 4 months ago that this mac pro does run alot cooler with more cooler air blown out (I remember istat pro back then the cpu were around 48c-55c where my readings are now at 33c-42c and i'm in the same exact room with the same room temperature and same amount of RAM hdd's.
Also when the power plug is plugged in I like that click noise feels secure lol.
Now I can register my mac pro + 23" acd via the apple care that I got too
All I'm thinking about now is trying to get the ultimate setup.. like this!
All I'm thinking about now is trying to get the ultimate setup.. like this!
See? No need to panic!
iStat must not be communicating with the micro controller in the PSU properly.
It's not an iStat problem. It's an OS X problem. iStat just calls a bunch
of standardized OS functions to get its values. It doesn't communicate
directly with the PSU at all. It's the job of the OS to return meaningful
values.
I assumed iStat created their own code to communicate at the board level. Nice to know.
Hmm... maybe with the newer update istat pro will be able to get correct psu readings.
Either way I just woke up my mac pro from 13 hours of sleep and its cool to touch everywhere and not the 79c that psu 1 and 65c that psu 2 is reading.
But everything else seems to be correct in the ambient, cpus, heatsinks, RAM, HDDs department.
Either way I just woke up my mac pro from 13 hours of sleep and its cool to touch everywhere and not the 79c that psu 1 and 65c that psu 2 is reading.
But everything else seems to be correct in the ambient, cpus, heatsinks, RAM, HDDs department.
I emailed yesterday to the istat pro team and this is what they said.
Hi,
I wish I had some more info to help you... but we simply display the stats and don't really carry any data on what's normal, good or bad.
We do have a Mac Pro here that we test on, but it's a bit older. I'm seeing 90 and 93 degrees here. The sensor might be located inside the PSU, so that might explain the temp difference you're seeing to how it feels to touch.
Sorry I can't help more.
Cheers,
Marc.
wow 90 degrees.. hmm interesting. Either way maybe it might be correct or not but I'm not worried anymore.
Hi,
I wish I had some more info to help you... but we simply display the stats and don't really carry any data on what's normal, good or bad.
We do have a Mac Pro here that we test on, but it's a bit older. I'm seeing 90 and 93 degrees here. The sensor might be located inside the PSU, so that might explain the temp difference you're seeing to how it feels to touch.
Sorry I can't help more.
Cheers,
Marc.
wow 90 degrees.. hmm interesting. Either way maybe it might be correct or not but I'm not worried anymore.
I understand his explaination, and tried to determine that as best as we could.
When you set the computer to sleep, temps of that level will:
1. Heat the PSU case above ambient.
2. Heat the air inside to temp listed by iStat.
If this was the case you would have felt a blast of hot air the moment you push the power switch. (Hand at the ready, then push. ) And a warm case of course.
Without an IR thermometer, it's the best that can be done.
Since you didn't feel this, and the case was cold, then the PSU temps iStat reported are inaccurate.
So you're definitely OK, and correct not to worry.
When you set the computer to sleep, temps of that level will:
1. Heat the PSU case above ambient.
2. Heat the air inside to temp listed by iStat.
If this was the case you would have felt a blast of hot air the moment you push the power switch. (Hand at the ready, then push.
) And a warm case of course. Without an IR thermometer, it's the best that can be done.
Since you didn't feel this, and the case was cold, then the PSU temps iStat reported are inaccurate.
So you're definitely OK, and correct not to worry.
I understand his explaination, and tried to determine that as best as we could.
When you set the computer to sleep, temps of that level will:
1. Heat the PSU case above ambient.
2. Heat the air inside to temp listed by iStat.
If this was the case you would have felt a blast of hot air the moment you push the power switch. (Hand at the ready, then push.
Without an IR thermometer, it's the best that can be done.
Since you didn't feel this, and the case was cold, then the PSU temps iStat reported are inaccurate.
So you're definitely OK, and correct not to worry.
As long as the mac pro wasnt hot or warm. I'm ok with it also since there are many other people on other forums that have the same temps as I do on the newer build machines.
Also I have apple care so all is well, so if there is a problem with the psu itself I'm sure something will happen in the next 2-3 years.