Fan RPM (rounds per minute) based on CPU load

I did some small testings regarding when the fan's are starting. I'm experiencing the following:
When running 3 times: yes > /dev/null the fans start to spin up after 1 minute full CPU load. They keep running till i kill those 3 processes. After 10 minutes full load the notebook is getting less hot because the fans are running at a good speed.
What they should do is write a component in osx that will measure the temperature and based on that information let the fans run...
With the current system the load is increasing all the time because you use it.. if the fans would start when its getting hotter the increasing temperature would stop and the case temp would be stable.
Therefor i dont think bringing in your laptop will help. I think they should be able to fix the problem thru software. Just like the whine issue... just the wrong amount of voltage are send thru the cpu.
The problem is... apple doesnt confirm this.. i hope OSX 1.4.7 will have such a tooling within it.
What do you think?

My completely unscientific experiences with my own MBP seems to support this, and I do believe that it begun happening after the last SMC update. I also believe that heat does in fact have an effect on the fans, but it is additive and that is why you mostly experience the fan activity generated by the CPU load.
I can hear my fans quite clearly on low RPM because of a strange, plastic whirring sound (oddly enough, they become more quiet on higher RPMs).

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Huge CPU temperature, low fan rpm, is it normal?

Hello!
I'm a new mac user, I have a new macbook 2.0Ghz, 4GB Ram and a hdd 160Gb.
I compared the temperatures of my mac with other macs and my values are huge.
In normal CPU usage I get 60ºC, but when I turn on my virtual machine the CPU temp can go to 84ºC and the fan is only at 3265rpm!
For example, now I got CPU usage of 70% and it's at 80ºC and the fan is at 2456rpm, is it normal?
Above there is a list of CPU temp and respectively fan rpm
84ºC - 3265rpm
80ºC - 2427rpm
78ºC - 2004rpm
60ºC - 2000rpm
45ºC - 1998rpm
40ºC - 2001rpm

Hello All, I have a early 2008 Macbook 4.1, with a 2.1 Ghz, 4G ram, and a 7200 RPM HD, and I am also frequently between 60-85 deg C. (140 - 185 deg F.)
My fans runs between 1800 rpm up to 6200 at higher CPU temps.
Sometimes I wonder if running the Macbooks wifi, bluetooth, and an external 24" monitor, increases the interior temp?
I have had on occasion, doing some encoding with a slew of programs running, had the temp up to 96 deg C (205 deg F), and it still was running fine, mind you I was freaking out.
But when I checked on the Intel site for max CPU temp for my model processor T8300, it said that it was 105 deg C as the maximum. 105 deg C converts to which is 221 deg F.
I figure that they must have some kind of CPU shutdown/slowdown mechanism so if it gets too hot.
And if it doesn't, my 3 year AppleCare will have to deal with it.
I am more interested in the Hard Drive temp, since if that cooks, there goes my "restore plan" into action. But it generally stays around 90 - 100 deg F.
My buddy has an iMac, and it runs between 70-100 deg F. Go figure, it's cold as ice
Just thought I would share my 2 cents worth, IAN...

Sorry, BIOS is Rev 1.0, CPU fan RPM still wont show, on Promise SATA and I have no activity led??

Yes, everything is properly connected, CPU fan is on CFAN1 and the HDD is on the Promise and the front panel led connector is properly connected.
Anyone know what the heck is wrong?? maybe my board has LED on VIA and not Promise opposed to Promise having it and VIA not??
and why won't my bios display the damn CFAN1 RPM's??? I tried every connector also.
any help?
thank you

Ok, this is weird, the HDD led connector was connected as directed in the manual, black (ground) on pin 1 and red (+12) on pin 3, whats weird is that I flipped it upside down (red on pin 1 and black on pin 3) and now it works, that just weird but at least it works now. every other connector works when connected normally, funny that I have to flip the HDD led connector upside down haha.
Anyway, still can't figure out the CPU Fan RPM, why it displays 0 while the Fan is actually running?? I don't know why.
Have you heard of that problem??
Thanks again guys.
Frank

I want to create a play list based on beats per minute. Is this possible?

I want to create a play list based on beats per minute. Is this possible?
I have selected show bpm on my itunes screen but there are no numbers there.

Tracks do not come with BPM information included, either from the iTunes Store nor when you import a CD. You need to enter in the BPM information yourself. There are applications for Mac that can analyze tracks and determine (more or less) the BPM automatically, and there may be something similar for Windows. Otherwise you'll have to determine the BPM yourself and enter that information in the field for each track.
BTW, this forum is for questions about iTunes U, Apple's service for colleges and universities to post educational material in the iTunes Store. For future questions, you'll be most likely to get help with this issue if you ask in the general iTunes forums.
Regards.

Fan RPM's read 0 in BIOS no matter where I plug the CPU fan, but it registers in Core Center???

Hey,
I used to have BIOS Rev 1.0, updated to 1.2 thinking it would fix the problem about the Fan RPM's not registering, meaning they show 0 in the BIOS, but it didn't fix it, but it registers normally in Core Center in Windows XP Pro.
What the heck is the problem?? are any other poeple getting this problem?, everything is correctly connected and operates correctly.
Specs are in my signature.
Thank you,
Frank

Quote
Originally posted by frank2036
... the problem about the Fan RPM's not registering....
What the heck is the problem?? are any other poeple getting this problem?
I have the same problem. Don't worry too much about it. Most BIOS' won't recognize a CPU fan below a certain threshold, and the Thermaltake Silent Boost's stock fan probably fits into that category.

CPU temps rise 10c and fan RPM goes up by 1K on resume from suspend

Unfortunately, it will be hard to determine what update prompted this issue as I didn't notice the problem right away. However, recently my Thinkpad x220 began experiencing a 10 C increase (as reported by sensors) and a 1k increase in fan RPM on resume from suspend. I started to suspect the suspend being the culprit, so I ran sensors, it came back with 44C temp on my cores, and a 1900 fan RPM. I suspend the system and then bring it back. If I run sensors again immediately upon resume the core temps have risen to 55C and my fan RPM is around 3K. A reboot of the system corrects this issue and brings the temp and RPM back to the pre-suspend numbers.
System is up to date and uses Kernel 3.6.1 and testing repo. I am getting ready to back down from testing to see if the problem goes away, but, has anyone notices similar behavior?
Update: I have narrowed the problem to kernel 3.6.1. Temp and fan are working normally after moving back to 3.5.6.
Last edited by caskale13c (2012-10-13 01:19:23)

This should probably go in the Testing section.

Increased fan noise, CPU temp and random fan rpm bursts when using Leopard

I have a 2.2 Ghz Macbook Pro that I purchased in August 2007. I was running OS X Tiger on my mac till about a week ago when I decided to upgrade to OS X Leopard. Ever since the install, I've been facing numerous problems and issues with the general functionality of the computer. Specifically, the biggest issue relates to increased fan noise and random bursts of increased fan rpm (as monitored using iStat). I did not have any of these issues when using OS X Tiger. Further upgrading to 10.5.1 wasn't helpful either as it did not resolve the issue.

Welcome to Apple Discussions!
It may be worth running the Apple Hardware Test, just in case you have a sensor going out or something like that. Sometimes and upgrade will cause an underlying problem to make itself known.
Did you do an Upgrade as opposed to an Archive and Install or an Erase and Install? If so, there could be some software problem associated with the issues you are having. I tried an Archive and Install, and had so many issues that I went ahead and did an Erase and Install. I've had no problems since.
Good luck!

Spotlight crashing hundreds of times per minute

On my new 13" Retina MBP, spotlight is crashing hundreds of times per minute, resulting in more or less complete CPU use by the crash reporter.
The console logs are full of this:
4/4/14 7:08:27.925 PM mdworker[22407]: (Fatal) Worker: Uncaught exception: 'NSInvalidArgumentException', reason: '-[__NSArrayM indexOfObjectWithOptions:passingTest:]: unrecognized selector sent to instance 0x7fea98409680'
Stack: (0x7fff8703e244 0x7fff8bc28e75 0x7fff8704112d 0x7fff86f9c3f2 0x7fff86f9bf78 0x100964ea0 0x10096265b 0x7fff8f0ca899 0x7fff8f0ca72a 0x7fff8f0cefc9)
Spotlight restarts itself and crashes again faster than once per second. I have to turn it off with launchctl. Trying to open one of the crash report logs from Console.app crashes Console.app, so that's good too.
The issue seems to come and go. The machine will work for a while fine, then at some point I'll notice the fans have spun up. When I turn it back on later, sometimes it starts right back up, sometimes it works for a while.
Really frustrating! I want spotlight back. I can't find anything about this on google. Any pointers?

Back up all data.
Triple-click anywhere in the line below on this page to select it:
/.Spotlight-V100
Right-click or control-click the line and select
Services ▹ Open
from the contextual menu.* A folder should open with an item selected. Move the selected item to the Trash. You'll be prompted for your login password. Restart the computer, empty the Trash, and test.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.

Macbook pro 13" june 2009 fan rpm remains at 2000 rpm when temp is 85c

Hi,
I've just bought a new macbook pro 13 inch and updated software vis software update.
I've noticed that the fan rpm went to 2700 rpm on every boot but
after a few minutes it goes down to 2000 no matter the temperature is
I'm using iStatPro to see the temp and fan
I've tried open youtube videos to raise the temperature to 71 but the fan remains the same at 2000
Please advise.
Thank you

Thank you for the info
I've just tried resetting the SMC but no luck.
since this is my first mac computer so I'm not sure if this is normal or not
after an investigation with different scenarios of work load I found that
room temp : 27c
cold boot : cpu 45c
: fan 2000 / 2700 rpm
warm boot : cpu 58c
: fan 2000 / 2700 rpm
running parallels
with windows 7
and visual studio : cpu 75c
: fan 2000 rpm
The fan did kick in to 3500 rpm once the temp is 85c
I'm not sure if this is normal or not since my Dell M1330 xps
which running vista and visual studio shows only
cpu: 58c
fan: 3000rpm
Thank you
I'm not thinking about using SMC fan control to set the default to 3000 rpm
and use it only when I work on Windows but not sure if the program will damage
my new baby or not
Thank you

UCCX recording file size per minute

Hello
From the SRND i´ve learned, that the maximum size for recordings is 2.6GB for a single server UCCX 9.x deployment and I´m aware of the 7 days and 30 days limits
Question: How much kb are needed per minute for the raw files and exported .wav files as well?
Thanks
Tino

They were not able to provide an answer for the exported files. So I decided to go with the values for the internal ones.
Based on SRND as well, G.711 call recording requires about 1MB per minute. G.729 call recording requires about 256KB per minute.

Calculate per minute wise salary

hi experts ,
please help me out ...
How can i calculate the earning amount of employee on per minute or per month (on the basis of shift hours)
for example in January month total salary is 5000 and 31 days and 8 hours shift So,
i want to calculate the total earning of employee on 8 hours/minute basis for January month.
demo script ----
select 'E001' emp_code,8 shift_hours,'jan' month,'2013' year,50000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'jan' month,'2013' year,45000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'jan' month,'2013' year,42000 salary from dual
union all
select 'E001' emp_code,8.30 shift_hours,'feb' month,'2013' year,47000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'mar' month,'2013' year,50000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'apr' month,'2013' year,48000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'may' month,'2013' year,48500 salary from dual
union all
select 'E001' emp_code,9 shift_hours,'jun' month,'2013' year,47840 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'jul' month,'2013' year,49000 salary from dual
union all
select 'E001' emp_code,8.30 shift_hours,'aug' month,'2013' year,35000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'sep' month,'2013' year,40000 salary from dual;
my oracle version---
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0
Thanks

select emp_code,shift_hours,month,year,salary,
round(((salary/(last_day(to_date(month||year,'monyyyy'))-to_date(month||year,'monyyyy')+1))/shift_hours)/60,2) earning_in_minute
from(
select 'E001' emp_code,8 shift_hours,'jan' month,'2013' year,50000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'jan' month,'2013' year,45000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'jan' month,'2013' year,42000 salary from dual
union all
select 'E001' emp_code,8.30 shift_hours,'feb' month,'2013' year,47000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'mar' month,'2013' year,50000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'apr' month,'2013' year,48000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'may' month,'2013' year,48500 salary from dual
union all
select 'E001' emp_code,9 shift_hours,'jun' month,'2013' year,47840 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'jul' month,'2013' year,49000 salary from dual
union all
select 'E001' emp_code,8.30 shift_hours,'aug' month,'2013' year,35000 salary from dual
union all
select 'E001' emp_code,8 shift_hours,'sep' month,'2013' year,40000 salary from dual)
EMP_CODE
SHIFT_HOURS
MONTH
YEAR
SALARY
EARNING_IN_MINUTE
E001
8
jan
2013
50000
3.36
E001
8
jan
2013
45000
3.02
E001
8
jan
2013
42000
2.82
E001
8.3
feb
2013
47000
3.37
E001
8
mar
2013
50000
3.36
E001
8
apr
2013
48000
3.33
E001
8
may
2013
48500
3.26
E001
9
jun
2013
47840
2.95
E001
8
jul
2013
49000
3.29
E001
8.3
aug
2013
35000
2.27
E001
8
sep
2013
40000
2.78
Ramin Hashimzade

Connection fee - Charge on Per minute basis or Per...

I am new and want to use Skype to call Fix and Mobile line, I find there is a connection fee. Does that charge on on Per minute basis or Per connection basic?
Thanks,
Jeff
Solved!
Go to Solution.

Hi,
A connection fee is charged when you use Skype Credit to call a mobile or landline. Connection fees are charged according to the currency set in your Skype account, and per call.
For more information on how to find which connection fee applies to the country you are calling, visit:
https://support.skype.com/faq/FA1050
Connection fees are also subject to the following conditions:
- If the call lasts less than one second, the call is not charged.
- If the call lasts more than one second, the connection fee is calculated based on your account currency.
- If your currency is not set, the connection fee will be calculated in Euros.
- If your billing address is within the EU, the connection fee is subject to 15% VAT – so for example, the actual cost for a connection fee of €0.039 (the global rate) would be €0.045. However, since your Skype Credit has been subject to 15% VAT at the time of purchase, you would see the amount of €0.039 deducted from your Skype Credit.
- If a call is declared to be free of charge (such as a promotion or 0800 number) the connection fee is not charged.
- If you have one of our Unlimited subscriptions, the connection fee is not charged for the calls covered by the subscription.
Hope this helps.
Did my reply answer your question? Mark it as a solution to help others, Thanks.

Why is it taking forever to transfer tunes from itunes to my ipod classic, I have over 6500 to copy and the current rate is 2 tunes per minute

I am just copying tunes from itunes to my ipod classic, there are 6675 to copy and the present rate of transfer is 2 tunes per minute, which means that it will take over 55 hours at this rate,
This has never happened before previously it took next to no time so what is happening?

That show that your original library is damaged and needs to be repaired. Apply the two fixes below in order as needed:
Fix #1
1 - launch iPhoto with the Command+Option keys held down and rebuild the library.
2 - run Option #4 to rebuild the database.
Fix #2
Using iPhoto Library Manager to Rebuild Your iPhoto Library
1 - download iPhoto Library Manager and launch.
2 - click on the Add Library button and select the library you want to add in the selection window..
3 - Now that the library is listed in the left hand pane of iPLM, click on your library and go to the Library ➙ Rebuild Library menu option.
4 - In the next window name the new library and select the location you want it to be placed.
5 - Click on the Create button.
Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments but not books, calendars or slideshows. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.

Harmful fan rpm?

Hi there!
I just downloaded a program called Temperature Gauge from app-store. The program tells me of how hot my computer are and how high the fan's rpm is. Right now i'm running Starcraft 2 and the fan rpm i almost maxed at 5900 rpm (the rpm bar is red and almost full). However the computers temperature is at 93 C.
My question is, does my macbook take harm from running it's fans this fast although the temperature doesn't seem to be too high?
Hope you understand the question and have a great day!
mbp specs:
2,4 GHz Intel Core i5
8 GB 1333 MHz DDR3
Intel HD Graphics 3000 512 MB
OS X 10.8.2 (12C60)

The fans are reacting to not just cpu temp though. They are also influenced by gpu chip temperature and other sensors on the logicboard. Often the gpu chip set can be generating a lot more heat then the cpu if you were doing something graphicly intensive like a game.
MBP's can get pretty toasty sometimes, but I've never had any heat related issues with mine (which is a late 2008 model bought in early 2009). It can be a bit of a surprise when you first ever hear the fans ramp up to max 6000 rpm though!

The fan RPM increases a lot whenever i plug in my battery

I recently bought a new battery for my laptop and whenever I plug it in, while my charger is plugged in, the fan RPM increases as if I am using 100% CPU and 100% RAM. Could this be caused by the new battery?
I have an hp dv7-3111ea and bought this battery http://www.ebay.co.uk/itm/140961851908 .
This question was solved.
View Solution.

Hi @CreaTivEuk ,
Thank you for visiting the HP Support Forums and Welcome. I have looked into your issue about your HP Pavilion dv7-3111ea Notebook and issues with the newer battery. Here is a link to test and calibrate the battery.
Plug the power adapter directly into a functioning wall outlet. Do not plug it into a power strip, surge protector, or secondary power source as this could cause and issue.
The link you sent does show me the correct battery for your HP Notebook.
I recommend to restore the BIOS defaults with this document selecting the reloading the BIOS default settings
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Fan RPM (rounds per minute) based on CPU load

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