MacBook Air :: Limiting The MAX Fan Speed Via SmcFanControl?
Apr 9, 2008
I saw an interesting post today by pgharavi who says he is using SMCFanControl to set the max speed of his fan to 4000RPM:Quote:From the terminal:
/Applications/smcFanControl.app/Contents/Resources/smc -k F0Mx -w 60e0
I obviously gain a few degrees C when limiting to 4000, but at least my MBA shuts up.Not to question his knowledge but have others tried this and does it really work? might not go so far as to set the fan to 4000 (but I might). Given all the thoughts on Coolbook, what do you all know/think about this? Safe and effective relief from fan headaches?
My home network consists of three computers connected via a Linksys wired router. Is there any way to limit (or disable) the connection speed to a particular computer? I'd like to be able to selectively limit/disable the connection, without having to remove the ethernet connection on said computer. I can access the router status and enable/disable the connection for the entire network, but I can't seem to selectively limit/disable a particular connection.
I have a macbook pro, intel 2.4ghz core 2 duo, running snow leopard.My default speed for smcfancontrol is set to 4000rpm for both fans. I turn it on when i feel things are gettin a bit hot and I dont have my laptop cooler fan underneath.
I noticed something, when I quit smcfancontrol, shouldnt the fans revert back to default speed? I checked with iStatpro and saw that, even after quitting smc, the speeds of the fans are still at 4000rpm.After doing an SMC Reset, the default fan speed as stated by iStatpro is 2000rpm. As soon as I fire up smcfancontrol and quit it right after, the fans stay at 4000rpm. Even after i power cycle (reboot & power off/on) the mbp, the fans are still stuck at 4000rpm.
I feel this will wear out my fans a lot faster, I hardly ever need the fans at faster than 2000rpm because I use a laptop cooler 90% of the time.Is this a normal issue? Or a bug? Anyone else have this problem?
Just bought a new base 15" MBP, running 10.6.2. At a glance, everything runs just fine. However, SMCFanControl 2.2.2 can only read "LeftSide Fan". As if the Right Side Fan doesn't exist.
Well, it could be that the app is at fault, but I worry if there is a hardware problem. Is there any quick way to check whether the right side fan is ok? (while running apple hardware test, I can hear both fans working). I don't live anywhere near Apple Stores or their related service center, so if there's any app to verify the right side fan,
I have the new 15" with SSD (80 GB Intel) and HDD (500 GB). I have put System and Apps on the SSD, while the user's home directory is on the HDD. So far so good, performance is great. But I have run into the problem of getting the "Memory on the startup disk is too small" warning twice. That's a pretty unpleasant experience, with apps freezing etc. Of course, nominally my startup disk (the SSD) is far from full, since the apps occupy maybe 30 GB and the System maybe 15. I should have over 30 GB of available disk space. So what happened? I found out that the culprit is virtual memory. Somehow my system at some point thought that it needed a lot of VM (around 40 GB), and the VM daemon started writing swap files (up to 40 of them!) on the startup volume, until it got full. After quitting some apps, somehow the situation gets corrected and the system automatically reduces the number of the swap files again.
What are my options to keep this unpleasant problem from occurring again in the future? Here are the ones I can think of: 1. Move the VM directory to HDD. I don't like to do this because it would significantly hurt performance. 2. Create an additional partition (~10-20 GB or so) on the SSD, then move the VM directory to that partition. This way, I always know the max. size of VM and I won't be surprised. Disadvantages: I will need to repartition the SSD and re-install system and all apps. And I may be wasting precious space on the SSD. 3. The ideal solution would be an option in the VM daemon to limit the total VM size. I have perused the man pages, but I can only see an option to set the size of each individual swap file, not the overall VM size.
I set up a new user account for my daughter on my computer, an account running Simple Finder. I would like to restrict all applications, except one, because this is for homework.
When I specify the application that is allowed in the parental controls, and then attempt to open it from her applications folder I get the message "You do not have permission..." I tried putting the application in the Shared Folder but that did not change anything.
Does smcFanControl would able to control the fan at same rpm before boot up into vista? When I changed the rpm of fan to higher (3,000 rpm) under Mac OS X then boot up into Vista then it would be same rpm (3,000 rpm) what I was set or force back to default (back to 1,200 rpm)?
I have noticed that some of my programs when I run them take a massive amount of cpu usage and make my computer run very hot. This question seems like a stretch to me but is there any way to limit the amount of processing power a certain program uses? I don't really care if the program takes a longer amount of time to complete what it needs to do, I just don't want my computer overheating.
To reduce the signal to noise ratio,please do not respond to this post asking questions of why I want to do this or with opinions about the validity of the task.I have a mid-2010 MacBook Pro Core i5 and I am consistently enraged that a computer this powerful is always lurching along when I am trying to do multiple things at once.I would like to limit the amount of RAM/CPU available to applications on a systemwide basis.All mobile OSes institute this policy (except for Android and its runaway memory munching) and this is what makes those system react so quickly.I know about nice and freezer but these solutions require constant tweaking for each process run. I would like a solution that is applied to every process, systemwide, if that is possible.
Info: MacBook Pro, Mac OS X (10.7.4), Core i5 2.53, 4BG RAM
My understanding of Documents and Data in iCloud preferences is that when turned on, all of my iWork documents will be synced. I don't want to do that because some documents contain sensitive data. Is there a way to restrict syncing to a selected folder of documents?
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.
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.
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.)
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"?
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.
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.
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?
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"?
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?
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.
Ok so I made an imovie that was like 20 minutes long and to do that I had to scan in like a billion pictures and all that. I deleted all the pictures of my computer when I was done with the project. But I have noticed that ever since I started this myy computer has become much slower. This imovie was the first big project I have done on my mac. I clean my disk drive thingy like ever 2 days using Disk Doctor.
So my 4 year old macbook has a logic board problem where it no longer detects the battery. The battery indicator just shows an "x". So basically it works fine but it has to be plugged in all the time. I've heard that if a Macbook does not have a battery in it and is just running off of AC power, it will cut the CPU speed in half in order to cut the power consumption. I want to see if this is true or not. I have ordered a new MBP but I was going to sell this computer for my friend for very cheap, but I need to make sure its not actually running at 1ghz, cause I'd feel bad about selling him something like that. The computer is perfect otherwise.
Seriously, for the life of me I cannot find it. I've looked in System Profiler and Disk Utility to no avail....am I overlooking something here? I thought it would be obvious; I simply want to know what the RPMs of my installed drive are.
ps Amazing how a 320gb drive only registers about 195 or so...is that right? I know when the drives are formatted they don't register the full capacity but losing 25gb seems a tad much to me.
I'm trying to figure out how does the cooling system in MBP's work. I've been using FanControl for quite a while (the one by Lobotomo), it does the job pretty straightforward - just dynamically changes the fan speed. But when I was using default settings the fans were at low speed even when temp was around 80C. Any idea what default settings for Apple notebooks are? I mean, lower and upper thresholds, how and when does it kick in the fans etc.