Fan speed increased with Leopard

Just upgraded to Leopard and 10.5.1. The fan speed on the iMac G5 has now jumped by about 50%. Way too loud for office. What may be the issue and how do I resolve it? Fan speed is increased all the time, not just when it would increase under Tiger.

Hey Jack
You can open the Activity Monitor in the Utilities folder, hit Command - 1 (apple + 1).
At the top of the window, select ALL Processes, and then sort by CPU so that the largest numbers are at the top.
See if there is something hanging everything up. It could be part of an application that doesn't run well in 10.5.
I did a re-start once on a G5 and had a similar problem... big fan noise... but when I re-booted it, it went away.
The fan increases with processor load, so try to find what is taxing your processor.

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Minumum fan speed increase with leopard?

I have searched the forum a bit but can't find anything about this.
After installing Leopard I have noticed that I can always hear my fans spinning. I use smcfancontrol. In Tiger I had the minimum set to 2000rpm when nothing intensive was running. Now with Leopard I can't set the minimum lower than 3000rpm. Does anyone else have this problem?
I prefer not to hear the fans unless they are needed and 2000rpm's was almost silent but 3000rpm's is not.
I have reinstalled smc twice and even when I disable it, istat says the fans are running at 3000rpm's. Is this the new MBP minimum for Leopard?

Ok, before it just looked like there was one post. I bought a brand new macbook on Friday, which of course comes with Leopard. Judging from these posts, it sounds like this may be an OS problem and not hardware.
Activity Monitor sometimes shows runaway processes, as others have mentioned. Right now there is something called syslogd taking 100% and the fan speed is 6208 rpm. When I kill it the fan slows down but then it comes back. The fan will run and be noisy even when I'm not doing anything. Right now it says the temp is 34 degrees. I don't know what the target temperature is, so I don't know if it's an issue of running hot or of running the fan more than it needs to. When I called the Apple Care line yesterday it was going to be a 15 minute wait so I didn't hold, but I think I'll try and do it tomorrow. If I get any good advice I'll pass it on. I'll try to see if the fan ever runs fast when nothing is sucking up CPU or only when I get the runaway processes.

Satellite R830-1GZ - CPU usage high ( 25%) and fan speed increase after wakeup

Hello all
The CPU usage of my laptop shoots up to 25% (and beyond) and the fan speed increases dramatically after waking up, but only when I'm using an external mouse (Microsoft Natural Wireless Laser Mouse 6000) - disconnecting the mouse once this has happened does not solve the problem, so I'm always forced to restart my computer if I have let it go to sleep with the mouse connected.
I've noticed that when this happens System Interrupts - Deferred Procedure Calls and Interrupt Service Routines appears in the Resource monitor>CPU>Processes, and seems to explain the increase in CPU usage.
Any ideas on how to fix this would be most appreciated.
I'm using a Toshiba Satellite R830-1GZ with Windows 7 (64 bit). This problem does not happen when I use the same mouse with another laptop (Dell with Windows XP).
Thank you very much.
CM

Thank you for your reply.
I was using the mouse without installing the software that came with it (IntelliPoint), which seems to have been necessary to obtain the latest driver. So I've installed the latest driver now, but... I've still come across the same high CPU usage problem after wakeup.
If your suspicion is correct, should disconnecting the mouse before putting the computer to sleep (hopefully allowing the process that controls the mouse to close properly) stop this problem from occurring when it wakes up?
Could this problem also occur due to an external keyboard? I'm pretty sure it's the mouse (given my experience of using only the external mouse and only the external keyboard) and my understanding is that keyboards don't require special drivers (at least the A4Tech one I have claims it doesn't)... just trying to exclude all possibilities.
Thanks again for your help.

Portege M400 freezes, screen goes black and fan speed increase when moved

Can someone please help me?
I recently received the Portege M400 from a friend 4 days ago and reformatted to Windows XP Tablet edition.
All was going well until I wanted to move the laptop to my coffee table, but as soon as I move the laptop it freezes, the screen goes black and the fan speed increases dramatically!,
So far I have had no success in fixing this problem and I much appreciated is some one could help me!

Hi there,
I have the same laptop. Bought it from a friend also! That was a year ago. It was working perfectly till 6 months ago when I had it going 100% like yours. Screen freezes, fan speeds up and hangs up once it is moved. Recently, even if it doesnt move it hangs up also. I have tried many things like reinstalling drivers and Windows.....etc.
I dont think it is Windows problem or drivers problem, because if you run BIOS and try to move the laptop, it also hangs up!!
Tried updating the BIOS, also no benefit. I ended up opening the laptop and having a look to the motherboard (thinking that I could see something that I could fix!! But again, did not get any results.
I tried also disconnecting peripherals one by one to see whether I could spot the problem, I disconnected the battery, the hard disk, the optical drive, the wirelss modem (from inside), memory, and even the bluetooth, but could not spot the culprit.
I believe now that the problem is basically the motherboard (sort of wear and tear insulation problem) and it is beyond my humble expertise.
I am sure if I would contact TOSHIBA, they would not be of much benefit as I am a second hand user. And if I try to buy from them a main board, they will charge me hell of money.
I hope that this is helpful for you to avoid you wasting your time like me.
Please if you would come into any progress, let me know. Likewise, I would be happy to update you.

Windows 7 - Possible to adjust fan speed UP with "official" tool?

I just got a new T500 with the switchable graphics option, and windows 7 Pro x64 installed.
When playing a game like TF2(i.e. maxing out the ATI discrete card), the system gets fairly hot - Not critically, but the rear-left corner of the system gets hot enough to be annoying against my leg.
As such, I'm looking for a way to increase the fan speed at higher temps - when I'm gaming, I don't really care about noise; I either have loud sounds happening or headphones.
Is there any more-or-less official solution to do what I want, or do I have to resort to an unofficial tool like [url=http://www.thinkwiki.org/wiki/How_to_control_fan_speed#For_Windows]This[/url] one?
Thanks,
-Robbie

so you are using the laptop on your leg? there is no official tool as such for setting the fan speed at certain level, as it is regulated by the computer thermal management circuitry as needed.
However, i highly suggest you try to use a laptop cooler, and don't use the laptop on your leg when playing games, as prolonged usage could cause first degree burn to your skin. This is why some laptops are called notebook and carries a warning against using the laptop on your lap.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

IMac fan speed increased after upgrading hdd.

iMac mid 2010 i3, I replaced stock hdd to a two terabyte western digital caviar green. After replacing the fan speed rapidly increased. I installed smc and still no resolution.

FIXED THE ISSUE.... This took a little time, but it was a simple fix. The LCD sensor that you have to disconnect from before removing the LCD was the issue. After receiving HIGH CPU fan speeds, I began looking at possible issues. First, I had [http://www.macupdate.com/app/mac/12381/temperature-monitor|Temperature Monitor] Installed. I had all my sensors including the ambient air sensor reading. After I upgraded my HD to a SSD I started getting HIGH CPU fan speeds, but the HD and DVD fan speeds were fine. I looked at my Temperature Monitor and I noticed i had several Temperature Monitors not reading including the ambient Air Temperature (bare with me, these are steps to troubleshoot). After reseting the SMC and PRAM, still nothing. I shut down and disassembled my IMAC again. This time after i removed the LCD, I looked at the LCD cable that you must disconnect when removing the LCD and BAM, I saw the issue. The wires that connect to the Motherboard from the LCD Sensor, inherently like to lay across the screw hole the Bezel attaches to. I have a couple of pinched marked that exposed the wires and when I tighten the bezel down, it shorted the wires and caused the issue. I cut small pieces of electrical tape and covered the bare spots. When I reassembled the IMAC, i made sure that all my BEZEL screw holes were completely clear of any wires. Once back together, I plugged in the IMAC, waited 5 Seconds and turned it on. All is well. I feel this a majority of everyones issues when they take apart their IMACS and put them back together. THe Fan Control SOftware is good, but this was my solution that worked. Hope this helps.

Is it possible to control CPU fan speed (lower) with K8T NEO2-FIS2R (MS-6702)?

I have:
MSI K8T NEO2-F motherboard
AMD Athlon 64 3000+ processor
Bios is latest I found, AMI BIOS 9.20
Operating system is Windows XP pro.
Processor was boxed and with the normal amd fan.
Processor fan is plugged in CFAN slot.
My problem is that the cpu fan spins a bit too fast. Cpu temp stays at 25C and fan is spinning at 1800 rpm.
Setting manual mode from corecenter didn't change the fan speed at all. Not up or down. Neither can SpeedFan program. But if I stress the cpu, the fan starts spinning faster.
What is controlling the fan speed and can I manually control it?
There are no control options in bios.
If I missed any information, please do ask more.

Hi,
Core Center is crap, you can't do anything else with that than uninstall.
Speedfan works. You'll have to set "PWM 2" from "thermal cruise" to "manual control" somewhere in the advanced configuration menu, I don't remember where you can find that. The help file provided with speedfan is quite good, I strongly recommend reading it carefully. Using speedfan you can also control a second fan connected to the SFAN-connectors.
The built-in fan control sets the speed of the CPU fan to 2/3 of its nominal RPM value (my fan starts at 2100/min, max is something about 3300/min or so). Its speed increases quite late, on my system at temperatures above 50°C. And it increases quite slowly.
Michael

Defult fan speed increase

Hi,
I've had my macbook about 9 months now and this last week the fans on it have been spinning at 1792 rpm all the time. Before they used to spin at about 1040 and the increase is annoying because the fans are now clearly audible.
I'm just wondering whether chances are that dust has built up inside the macbook/ I've read elsewhere on the net about resetting the PRAM which is a hardware controller for the fans.
Does anyone have any advice?
Thanks
Andy

Since you haven't included your specific MacBook model in your profile or posts, it is hard to say exactly what is normal for it, but as a reference my less than one month old white MacBook 2.4 GHz (still the newest version for now, I think) typically idles at about 43° to 45° C CPU temperature & 1800 rpm fan speed. This is in rooms from about 18° C to 24° C, with the MacBook on a hard surface & nothing obstructing the vents or keyboard. Above 24° or so, the operating temperature & fan speed begin to creep up, but so far anyway the fan never runs slower than ~1800 rpm.
At 1800 rpm, the fan is "whisper quiet" -- not until the CPU load hits a sustained 30% or so do I really notice it.
If yours used to run quietly but doesn't now, & the cause is not a heavy CPU load, you still must consider the effects of changing ambient air temperature before deciding there is something wrong with it. For example, the weather in your part of the U.K. may now be warmer than it has been in the previous 9 months of ownership & you may not be using it in a climate-controlled space. Since you say nothing about that, we have no way of knowing if that is a factor or not.
Also, remember that this is an exhaust fan that cools everything in the case, not just the CPU. You may want to check with a utility like iStat Pro to get a more complete picture of component temperatures. If you notice some other component is running hotter than the CPU, it may be a clue that points to the cause.
As for your supposition that dust buildup is the cause, it is possible but probably unlikely unless you have been running the Mac in an extremely dusty environment. One thing to keep in mind in this regard is that some cooling air normally enters the case through the gaps between the keys, so vacuuming the keyboard may help.

Fan speed increases and windows 7 freeze on my Satellite A200

I am using Toshiba Satellite A200-24A (PSAE3E) from 3 years now. It came pre-installed with Vista. Last year i switched to Winows 7 Ultimate. Everything was fine.
4 months ago, i switched to Windows 7 Enterprise N. Hated to see no Windows Media Player in it. Now the problem is, during online video streaming (not always the case), my fan speed inceases, so do its sound, and my hard drive gets real busy. 10 seconds later, my window is freezed. Actually, its not responding due to excessive hard drive usage.
I read many articles over the internet, lots of toshiba users are facing the same problem when using Windows 7. But, i couldn't find any solution to it.
This problem started 3 months ago, then for sometimes, it stopped itself. now, it started again 3 weeks ago. If anyone can help me regarding this issue, i will me more than grateful.
Here are my specs:
Windows 7 Enterprise N. Service Pace 1
1.73 Dual core
Ram 3GB
Hard Disk partitions 75 GB + 75 GB

I presume CPU usage goes to 100% and result is freezing. Can you identify background process that can be responsible for this?
> I read many articles over the internet, lots of toshiba users are facing the same problem when using Windows 7. But, i couldn't find any solution to it.
Your opinion is too general. Lot of Toshiba users have a lot of different problems with Windows7. My notebook was also delivered with Vista and since one year I use Win7 32bit and everything works perfectly.
> This problem started 3 months ago...
This make the whole situation more complicated. What have you done 3 months ago? Have you changed some settings, installed some additional software that can be responsible for this?
Unfortunately it is not easy to help in this situation.

Will I get a speed increase with Infinity?

I currently have the standard broadband unlimited and get about 3-4MB download speed.
Is upgrading to infinity likely to give me any speed increases?
Matt

Hi canhefixit,
With ADSL (ADSLMax, ADSL2/2+) broadband the BB signals run from your local exchange to your property all the way via a copper phone line. This is why the further away you live from your local exchange the slower your broadband will be.
BT Infinity is BT Retail's brandname for fibre broadband.
Depending on what Openreach fibre infrastructure has been rolled out in your area will depend on what speeds you are likely to get.
The main fibre technology that is being rolled out around the UK is FTTC (Fibre To The Cabinet) fibre technology.
FTTC allows currently allows speed of upto 80mbps dependent on what Infinity package you are on and how far away you live from the FTTC Dslam cabinet.
FTTC works by installing a Dslam cabinet that is linked to your existing pcp. The new FTTC cabinet is connected to the local exchange via a fibre cable and then your property is connected to the cabinets via the existing copper phone line.
So for FTTC the external layout would be (simplified)
Local exchange >> Fibre Optic Cable >> FTTC Dslam Cabinet and existing PCP >> Existing Copper phone line >> Property
For FTTC the speed is dependent on how long your copper phone line is from your property to the cabinet. The further away you are from the cabinet the slower the FTTC broadband will be. Line quality also play a part.
FTTP (Fibre to the Premises) fibre broadband technology has also been rolled out in certain areas in the UK. This allows speed of upto 330mbps and requires a Fibre Optic cable to run all the way from a FTTP enabled exchange to your property.
To find out what Fibre broadband speed you maybe able to get enter your BT landline number into http://dslchecker.bt.com/adsl
In the grid there will be WBC FTTC ( if available to your property) and will be given an estimated speed.
It will also tell you what exchange you are connected to and what pcp (cabinet) you are on.
If you don't have a BT recognised phone line then you can try using your address by going to http://dslchecker.bt.com/adsl/ADSLChecker.AddressOutput It won't be as accurate as using the phone number but should be accurate enough.
Hope that helps and makes sense.
Cheers
jac_95 | BT.com Help Site | BT Service Status
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Will I see speed increase with thunderbolt/Ether adapter?

I have a 2012 Mac Pro connected to my network with Ethernet cable: MP > router > cable modem. Cable and modem are 10/100/1000.
Apple makes a Thunderbolt / Gigabit Ethernet adapter (http://store.apple.com/us/product/MD463ZM/A/thunderbolt-to-gigabit-ethernet-adap ter).
Anyone know if I might see any noticeable speed increase to the Internet switching from my Ethernet port out, to Thunderbolt port out using this adapter?
My broadband is 30 Mbps down, 5 Mbps Up, btw.
Thx!

Most devices that are serving as the Ethernet Switches are only 100BaseT capable. That is why I said "choose" to go up to that speed. (Some folks, like me, have to go out and buy Gigabit-capable switches.) Apple Routers (they don't make Just a Switch, but you can configure a Base Station as a Switch) are Gigabit-capable.
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The longest cable is 50 feet.
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Bad noise/ fan speed problem with Rev B iMac

Like a lot of other people, I'm having problems with ridiculous fan noise. I've read through the forum and tried the following (with no success):
1) Reset SMU (x2)
2) Ran Maintenance Scripts. (x2)
3) Removed the back and blew dust from fans, ports, etc.
The processor is set to automatic. The problem occurs whether or not I have any peripherals plugged in. I get the noise/rpms when all I have running is Safari and XRG.
On certain websites, the CPU fan will climb to 5600, CPU temp to 79C, with CPU usage at 80-90%.
Does this sound like a logic board problem? Something else, possibly?
Basically, I'm trying to cover all of my bases before I get on the phone with AppleCare. I'd like to try to keep that as short as possible. Thanks in advance for any help/comments.
iMac G5 (ALS) 17" 2.0GHz 512MB RAM Superdrive Mac OS X (10.4.8)
iMac G5 (ALS) 17" 2.0GHz 512MB RAM Superdrive Mac OS X (10.4.8)

Just an FYI. During my iMacs motherboard replacements (3) I was never asked for a case number once. I spent hours on the phone with Applecare when in reality I already new I had a hardware problem and if I would have just taken it in it would have been fixed quicker. The third time I took my iMac G5 in for service the local tech told me to call up Applecare (3rd time then call) and ask for a replacement stating that if they need to call me he would explain that I had a lemon. In everyone of the three bad motherboards the fans spun out of control so I have more experience than I would prefer on this subject. They did step up and as you can see in my profile I have a new Intel iMac courtesy of Apple.
Also a utility to measure your fan speeds is here: http://www.gauchosoft.com/Software/X%20Resource%20Graph/

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Fan speed increased with Leopard

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