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Mac Pro fans
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Senior User
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i have not heard my fans ever turn on (the main one's in the front)
the only time i did was when shuting down after being updated.
i allready have done some hardware tests were the processor gets quite hot and nothing
is this normal?
is there any way to check if there is a problem with them?
Thanks
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What is "quite hot"? Does it ever get over 80C/176F?
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Senior User
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well i have temperature monitor/ and lite and for that it reaches about 65C+
never over 80 yet
so there a program or somthing that makes it run just to see if it works?
in other words how can i get it up to 80C?
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Last edited by mkerr64; Oct 1, 2006 at 03:32 PM.
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once you download this file. the file contains dnetc, dnetc.1 and docs.
once your click the dnetc file what are you sepose to do from there???
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Posting Junkie
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You should just be able to run dnetc... if not, open up 4 terminal windows and type "echo yes > /dev/null" (no quotes) in each.
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Addicted to MacNN
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I have the Rosetta@Home BOINC client running when my machine is idle. Pegs all 4 cores to a full 100% when its going, and even after hours of work the machine makes no more noise than when at idle. The recent SMC update has been applied, BTW.
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Senior User
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i'm slightly confused.
once i open dnetc i type in echo yes > /dev/null?????
if that is the case it only allows me to type one letter under "choice -->"
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Mac Elite
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No. Go to your Utilities folder, in your Applications folder. In there, you will find an application called "Terminal" (without the quotes)
Open 4 copies of this application. In each one of the four windows, type "echo yes > /dev/null" (without the quotes.) This should completely max out all four processors.
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Linkinus is king.
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when i type dev and null in a a window it says -bash: dev command not found and etc...
im just making sure so i just type in echo yes (1 window) dev (2n window), null (3rd window)??
to get the 4 windows i just go file> shell correct?
then what are you supose to do with the original file dnetc497- macosx-x86?
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Mac Elite
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No, you type the entire string in each window. Each windows gets the entire phrase:
"echo yes > /dev/null" (without the quotes)
That means that all four windows have that exact string in them, not chopped up between them.
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Linkinus is king.
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permission denied....?
i did this in all 4 windows
sorry about all of these questions. im kinda new to Apple
so i tried again and entered it. but nothing happend......
........computer:MKerr$ echo yes > /dev/null
.........computer: MKerr$
could you take a screen pic so i know how its sepose to look?
and how are you sepose to know if you did the correct thing?
fans rev?
thanks
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Last edited by mkerr64; Oct 1, 2006 at 09:57 PM.
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Unfortunately I don't have a Mac on hand. However, I did notice you forgot an L at the end of "null" in that screenshot. Try again.
You know you did the right thing when you can see the processors are maxed out in... crap! I'm completely blanked out and forgot what the program is called. It's also in your utilities folder. Crap.
Application Monitor? I think.
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Last edited by brokenjago; Oct 1, 2006 at 10:07 PM.
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Senior User
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i tried again and added the additional L. and nothing happend.......
am i sepose to have the dnetc up?
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No, you do not need dnetc set up.
When you say nothing happens, what to you mean? I believe that means it's running and maxing your processors out. Let it run for a while.
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"nothing happends" meaning i dont see a difference nor do i hear
i'v left it open for atleaste 10 min and nothing
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Last edited by mkerr64; Oct 1, 2006 at 10:26 PM.
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Just leave it. Just because you don't hear your Mac Pro fans doesn't mean they're not working.
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Linkinus is king.
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ok then. if it over heats its your fault hahaha
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Mac Elite
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Try to check the System Monitor (Or Application Monitor, or something Monitor, it's in your Utilities Folder) to see if the 4 cores are being stressed.
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Originally Posted by mkerr64
i have not heard my fans ever turn on (the main one's in the front)
the only time i did was when shuting down after being updated.
i allready have done some hardware tests were the processor gets quite hot and nothing
is this normal?
is there any way to check if there is a problem with them?
Thanks
Its normal. Really. Just leave it. Mine are barely audible, even after running all four processor cores at 100% for hours on end.
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you don't have to type "echo". just type "yes > /dev/null"
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Originally Posted by mkerr64
sorry about all of these questions. im kinda new to Apple
Originally Posted by mkerr64
__________________
Mac Pro 2.66GHZ, 2gb RAM, 250gb, NVIDIA GeForce 7300 GT , 2x SuperDrives, 30" Monitor
PowerBook 1.67GHZ, 1gb RAM, 100gb, ATI Mobility Radeon 9700. 17inch
iBook 1.33 GHZ, 1GB RAM, 40gb, ATI Mobility Radeon 9550, 12inch
Could have fooled me...
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Mac Elite
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Well, he could have gotten them all at the same time.
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i'm actualy new.
i got the Powerbook from and friend and same with the iBook about 1.5 months
and i got my Mac Pro about a month ago
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I just read through the thread and that looked painful.
Did you eventually get them to rev up? If not, try the Rosetta@Home client... aside from dnetc I'm just not sure which distributed computing clients are multi-threaded.
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it worked but it the temp is stuck at 64 C
if i want to heat it up more do i just open another windo and yes > /dev/null???
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Why would you want to heat it up?
Originally Posted by mduell
I just read through the thread and that looked painful.
It was.
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make sure fans work correctly
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so do i open another window? yes > /dev/null?
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Why don't you just open the case to see that the fans are spinning?
I guess you could try that. They're already being maxed out, so I'm pretty sure you can't maxer out maxed out cores.
The reality of it is that they just don't get too hot. That means the fans are doing their job.
And double posting is bad.
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yes they are spinning but when i updated the firmware i reved up alot.
making me think that somthing may be wrong.
sorry about the double posting. comp lagged and clicked post quick reply twice and couldnt delete one of them
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From Apple's Support Page for the Mac Pro SMC Firmware Update
Originally Posted by Apple
The SMC firmware update starts automatically. A status bar indicates the progress of the update. During the update your computer fans will run at full speed, but will return to normal once the update completes.
You're fine.
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Linkinus is king.
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Originally Posted by mkerr64
it worked but it the temp is stuck at 64 C
if i want to heat it up more do i just open another windo and yes > /dev/null???
You need one terminal window running that command for each core to "max it out." If you have four already running, adding a fifth won't do anything.
Topping out at 64C is normal.
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your mac pro is dead quiet, join the club. dont mess with it, your temps are fine
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it was just that i never heard the fans rev up ever
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it scream when you do the SMC update. the amount of airflow I felt is like a tabletop fan blowing.
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MacPro, MacBook Pro, MacBook, MacMini, iPad, iPhone, and much more...
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mkerr64...why do you want your computer to run hot? This is totally stupid...you're complaining about your computer running cool and quiet?!
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mkerr, the thing you need to realize is that systems are designed so that if any problem is detected, the fans will be on continually at full power. The fact that you cannot hear the fans means that your system is within a low temperature range as defined by the hardware's firmware.
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I'm with mkerr64 on this. 64 Celsius is a tad too toasty for the CPU. It'd be nice to have a slider somewhere to rev up the fans a tad (or up to the point I actually start hearing them). You reduce the longevity of your hardware by running it too hot.
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64 is nowhere near the danger zone for this CPU, imo. I can't even get mine up to that temp. The highest they go is 62C. Right now they're idling at 48, and when under moderate usage they go up to about 55C.
Wait, nevermind. It seems that I've made it go up wo 78C. It quickly goes down, however.
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Last edited by brokenjago; Nov 15, 2006 at 07:10 PM.
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Cooling modern CPUs is a complex problem. They produce a lot of heat and the demand is for them to run cool yet fast. The default Intel QST cooling scheme for Core 2 Duo is set up to keep the temperature under 60. If it goes too high it won't damage the chip, because it will throttle if it gets too hot. The formula for when the chip throttles is quite complex - depends partially on the load - and is different for all chips, so the cooling scheme is also different. Presumably the line to stay under for the Xeons is 65 rather than 60.
Baseline is: don't worry about it.
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There is more on this topic here. Read the thread and you'll find some links to Apple's discussion forums.
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Hm. I've offiocially seen my CPU temp go all the way up to 89C (only for a literally a second, before it shoots back down to 74.)
Interesting. Honestly though, I'm not worried about it at all.
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