OS X :: Cannot Get Fan Speed Down Using SMC Control?
May 21, 2009
I have an iMac 9, 1 (the '09 model). 3.06 GHz DC. So I tweaked the fan speed a little to see how cool it can get, but, there's one tiny problem. I used "smcfancontrol_2_1", I can get the speeds up, but not down.
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Feb 21, 2008
i am new to mac and coming from linux. got my mac pro about 3 weeks ago and i am wondering if there is something similar to powernowd or cpufreqd under osx to control the cpu speed and voltage of the 8 core monster. i mean there must be some power saving features in osx for the macbook series i guess and i want to know if there is something similar for the pro series.i am not sure if i better asked this questions in the osx forum but its somehow mac pro related. so are there any power saving features cpu speed or vcore related for the desktop mac series in osx right now?or is it maybe not supported yet because the hardware is so new?
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Aug 3, 2010
When I run SMC my fans kick to 4000rpm and SMC shows that my default speed is 4000rpm, I cannot put it lower then 4000 only higher. I have tried uninstalling the program and reinstalling.
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Jul 29, 2008
During the summer, I don't have A/C in my house. My temps were getting pretty high, around 55C/130F for processors and up to 78c/172f for ram. That is pretty high, and I suspect it is because the ambient temp in my room is somewhere in the 90s. I am just very acclimated to the heat, and it doesn't bother me.
I downloaded SMC Fan control and bumped the min fan speeds up to:
1250rpm for Exhaust
1150rpm for CPU
800rpm for Power Supply
1350rpm for HD
This has made a tremendous difference. CPU is down over 20C and ram is down about 30-35C. Are these fan speeds safe? What are the Mac Pro fans rated at, and will the increased speed shorten their lifespan? I'd like to keep these current fan speeds if it is safe.
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Apr 14, 2009
Just downloaded and installed this app, been using it for a few hours, I am a fan. Just a quick question, it won't seem to let me set the minimum fan speed below 2000rpm (the standard level for the app), is this normal, I thought I remembered the apple default being lower?
15inch UNI MBP, 2.4 ghz, 2g ram, 250hd by the way
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Apr 10, 2009
What's up with this in the newest version of SMC that just came out today? The min now goes below the original 2500 RPM that the Apple engineer's decided on??
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May 10, 2010
got a problem, after i bought the new macbook pro 13'':
i noticed that the fan speed is always about 2000rpm... doesn't matter, whether the temperature is at 40�C or at 70�C or 80�C (my mbp doesn't get hotter)... always same rpm.
is that normal? additional info: i downloaded istat menus 3 which has the option to control the fan speed (i deactivated it... no changing... always 2000rpm). did istat crash the internal fan speed control?
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Jun 30, 2012
I installed (and subsequently uninstalled) two different fan control programs... Since then, my fan speed has increased somewhat dramatically. Instead of the normal 2000 rpm (approx), it now runs at 3500 to 4500 rpm with CPU temps between 55 & 65 deg. C. I'm wondering if one of the programs modified some fan setting and how I can restore the factory defaults. I'm on a Macbook Pro OSX 10.6.8 *additional note: I only have one fan running (left fan), which is why I downloaded the fan control programs in the first place... but the left fan was running at around 2000 rpm even though it was the only fan (until I installed those programs)
Info:
MacBook Pro, Mac OS X (10.6.8)
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Jun 5, 2010
Does the base speed mean the minimum speed for the fans to run at? Or, is the speed the fans will run at all the time?
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Apr 30, 2009
Sorry for the title but I couldn't think of anything better. Hopefully I'll be able to explain my problem. I have a MPR 2.53 ghz, 4 gig ram, I'm using Safari 4.04. I am using the WIFI at a guesthouse in Thailand (but I had the same issue in China, Vietnam ...). I ran a speed test and it said download 7mb/sec and upload about 1mb/sec. I have an "app" that says bandwidth in 1.3kb/sec out 1.0kbs. I thought maybe it was Safari so I downloaded and installed Firefox. firefox gives me similar speeds. When I downloaded Firefox though I had a download speed of over 1mb/sec. But as soon as it finished downloading the speed went back to around 1kb/sec. I have rebooted my MBP many times. I did some Google searches but didn't find anything helpful.
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Dec 20, 2007
I am interested in adding a webcam to my desktop Imac (power pc)- Isight is no longer available- an option that I found is the Ecamm Image- but apparently it is USB and not firewire and it will only run with high speed usb- how do I know which type is on my computer? I checked system profiler but quite frankly wasn't sure of the designations.. does anyone have any experience with this camera, by the way? is USB 2.0 by definition "High Speed"?
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Apr 10, 2009
I have a WDS local network at my house. I use a Airport Extreme in my main part of the house and a Airport Express for my back part of the house i.e. the backyard. Now every two weeks or so my internet speed through my Airport Express slows down about half the speed but when I am connected trough the Airport Extreme my speed is normal. I know this because I test my connection very often. Now when I want the Airport Express to get back up to speed I have to unplug, and plug it back in. Then after awhile it starts to slow down again in a time period of two weeks or so.
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Jan 7, 2010
I have a MPR 2.53 ghz, 4 gig ram, I'm using Safari 4.04. I am using the WIFI at a guesthouse in Thailand (but I had the same issue in China, Vietnam ...).
I ran a speed test and it said download 7mb/sec and upload about 1mb/sec. I have an "app" that says bandwidth in 1.3kb/sec out 1.0kbs. I thought maybe it was Safari so I downloaded and installed Firefox. firefox gives me similar speeds. When I downloaded Firefox though I had a download speed of over 1mb/sec. But as soon as it finished downloading the speed went back to around 1kb/sec. I have rebooted my MBP many times. I did some Google searches but didn't find anything helpful.
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Mar 4, 2010
Have an Extreme base stations and express repeater connected to my DSL services. On my primary iMac connected via ethernet I get 5.25MBps speed. The speed on this computer is always constant. On the remote MacPro I get anywhere from 1.5MBps to 5MPps speed within a half hour of testing.
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May 21, 2010
I'm using Data Rescue III on a USB powered hard drive with and it's taking a very long time with my iMac G5... It says 42,291 hours remaining (about 5 years) If I did it on my Mac Pro would it go faster, or is the recovery speed based on the hard drive speed?
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Apr 12, 2009
i have a 1.5 Mbps AT&T DSL connection, and multiple speed tests show a download speed of 1.2 Mbps (and 200 Kbps upload). when i download files, such as software updates from Apple, various podcasts, and even Silverlight from Microshaft, the speed is always between 140 - 160 Kbps. i contacted AT&T, and the rep said it was because of buffering by the servers i was receiving the files from. is this a reasonable explanation? is this an accurate use of the term "buffering"?
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Aug 26, 2009
Last night my fan kicked into high gear all of a sudden. I shut it down overnight and when booting up this AM I find it still running on high...quire noisy, of course. Is there something overheating? How to make it run at normal speed?
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Jan 7, 2010
I generally get about 700kbs download speed, which is what my ISP (Sky uk) tells me I SHOULD have, but they also tell me that my router upload speed should be similar and it's not anywhere close to it.
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Apr 24, 2010
I find OS X's TTS engine on SL to be not fast enough on full speed. Is there a way to hack the plist file or something to speed up the dictation past the max speed?
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Jun 16, 2009
Does it hurt the computer... If the computer is doing something (watching flash, playing a game) that turns on the fan full speed;Does this hurt the computer? There are a few games I like to play and they turn on the fan at full speed (computer gets hot too, on the bottom.)
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Apr 9, 2009
I've got a real odd problem with safari 4. For some reason it is cutting my download speeds in about 1/2 from my server and many other places.
If I restart safari I will be able to download close to my 18 Mbps for a little bit but then it will just start to slow down and after about 30 minutes it will be down to about 6 - 8 Mbps.
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May 26, 2012
I have an upgraded (2 x X5355 8 core) Mac Pro 1.1 running 10.7.4. I routinely use SMCFanControl (the latest version) to ramp up the fans when I am running long, CPU-intensive jobs. However, SMCFanControl only changes three of the four fans - the PSU fan remains stuck on 600rpm, regardless of the settings. My PSU is getting pretty hot - 70+C, so I am looking for a way of cranking it up.
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Oct 14, 2010
I have tried using SMC fan control in the past but the minimum fan speed was 1000rpm which i found too high when i didnt need the extra cooling (noisy too).
Is there an alternative to SMC fan control so i can increase the speed when needed then reduce them to the original speeds during idle?
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Nov 1, 2010
I noticed my disk space had been dropping slowly for the past few days, and I hadn't restarted for 11 days, so I restarted and 8GB were freed up. I assume this must be from log files inflating much larger than they should, but I'm not sure why this would be or how to fix it.
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Dec 27, 2010
Dear Gurus i need some advice from you all regarding Fan Control under Bootcamp.
I've a Mac Pro 4.1 8core and was using under Mac OS and Bootcamp with Win7 Ult 64bit as mainly doing Photo editing using Aperture and Video Transcoding under Windows environment using Tmpgenc Express 4 and Tmpgenc DVD Author which i found Tmpgenc was the overall the best app for Video Transcoding which most Mac application lacks in.
The issue Im facing is that under Bootcamp Fan control are missing in windows environment and Windows are unable to control the fan's speed even the processor are overheating as what i've experience during Transcoding all my Processor core are 90-100% utilize and the temperature shoot to 100' Celsius Im a matter of minutes.
Some mention to use smcfan and boot into windows without shutting down the machine so that the fan are keep into the speed needed but that's is just not an alternative solution.
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Nov 11, 2008
I got a notice of an update for SMCFanControl to version 2.1.3.1. I installed it, and when it ran my fans went faster and louder than ever before! Normally surfing the web they were around 2000rpm. After the update SMC reported 7300rpm! I didn't even think they could go that fast.
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Mar 4, 2009
I have had this sound occur off and on since i got it about a year ago
and i want to turn all the fans off to see if thats what it is
i just cleaned everything inside, took out everything(even the fans), still i get this sound.
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Jun 10, 2009
My in-laws bought a Macbook Air and I would like to be able remotely control their Mac. Can I do this inexpensively? I saw the remote desktop - but that looks like it is for net administrators.
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Nov 3, 2009
I am looking for a program or a way of taking control of a mac. I would be at home and the computer I would be working with would be at my job. I work for a print company and I would work with adobe cs4, quark and suitcase remotely. First of all is this possible and if yes how to do it. The company will pay for the software necessary to accomplish this.
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Jun 9, 2012
why does control-R do NOTHING on either of my Mac Lions? is it a defective initaial install? Or because I installed it from the internet?
Is there a way I can "see" the recovery partition they make reference to??
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