Fan speeds go up when charging?

Hello, this is my first time posting here, and my first mac.
I was using my macbook pro 2.2 today while unplugged, then once i plugged it in when it was low, i noticed the fans sped up to about 3500 - 4000 rpm. I looked in the iStat widget and i guess the highest temp was the memory control, it was about 60c.
Is this normal to happen? If so, can someone explain why?

Yes, fan speed can increase when charging. This is simply due to the fact that the act of charging a battery produces heat which can just be enough to ramp up your fans, especially during summer when ambient teemperatures are higher.

Similar Messages

  • Fan speed gets faster when i charge my macbook

    hi guys.
    Actually, i am an user of MacBook Air(2010 late) though,
    the reason i'm asking you of my problem here is just this section has much more users than Air section.
    Anyway, i have a problem. i think this phenomenon occured to my laptop these days and the problem is literally same with the subject.
    Fan speed gets faster when i charge my macbook air!
    There's no more process or something in charging, totally in same environment!
    I'm assuming that the charger has a problem like over-voltage..but i'm ignorant of this so.. just it's my guess.
    please help me!
    OS X Lion is installed.
    thanks guys!

    More heat is generated by the charging system while the battery is being charged than when it is already fully charged and charging has automatically stopped. More heat means more fan activity, so it sounds to me as though what you're seeing is to be expected. However, other users of MBAs would know better than I do just how much of a temperature and fan-speed difference is normal, so I hope you will repost in the proper forum and get some responses there. MBAs and MBPs are quite different.

  • Fan speed not increasing when cpu/gpu runs hot (causes black screen)

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    I just pulled the card and disconnected the wire.  They are definitely 4 wire fans.  FYI Afterburner is crap as far as telling you what the fan speed is.  When I put the card back in I left the wire disconnected and briefly started the system with the card running fanless.  Afterburner still showed the fan speed as whatever the it was SUPPOSED to be running and showed the speed increasing with temperature, even though the actual fan speed was zero.  So their software isn't even actually monitoring the speed.  It is just telling you what the fan speed should be not what it is.  Going through the threads on this forum, I'm seeing several others with different models of MSI cards having this same problem.

  • 560GTX TI HAWK fan speed?

    So I just got a new 560GTX TI HAWK (Bios 70.24.11.00.00) not overclocked, and the bios switch on performance.
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     I just checked mine and about the same, 4560 RPM and no difference between 85-100%. It appears then that max fan speed RPM is when it hits 85%.

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

    Can someone please help me?
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    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.
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    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.
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  • Loud fans when charging

    Ive had look at previous posts and couldnt find anything to help so thought id ask my self.
    Ive seen lots of people with battery life etc, and found that i could sleep mine for bout 4 hours then turn back on to bout ten minutes of charge, after a full charge that is.
    So i thought a good idea to try calibrating before getting a replacement battery.
    Plugged in power and quickly checked email, and read a few posts, nothing major that would max out mac book.
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    Can anyone help or suggest anything, or is this normal.
    Hope i gve enough info, if not ask a way and hope we can find a solution.
    James
    Imac G5 1.8Ghz 17 1 gb RAM Ipod 20gb 4th Generation ibook 1.42 1gb RAM   Mac OS X (10.3.9)  

    Is this normal?
    It could be. Fan speed increases to dissipate increased heat. Depending on the number and type of CPUs available, area of screen being recorded, compression format being used, and the ambient room temperature, your system may be overheating causing the fan(s) to run faster. On the other hand, your heat sensors may be malfunctioning causing the fan(s) to run faster than they should/need to. Try reducing the ambient temperature of the room and see if that makes a difference.
    Will it be fixed by using  another program to record my screen????
    Probably not. This is mostly a hardware thing.

  • RMBP - Fans run at 5500rpm when downloading something at speed of 4MB/S from the net

    RMBP - Fans run at 5500rpm when downloading something at speed of 4MB/S from the net
    when i download something from the internet and the speed of the download is 4mb/s the fans start turning at the top speed and stays at that rate until the download is finshed .... it is very disturbing
    is anyone experincing this ? or its only my poor RMBP??
    p.s not only 4MB/S but also 5MB/S or 6MB/S or more ...
    using mountion lion

    ok if no one want to answer at least tell me if this could break my mac

  • MacMini 2012 Fan speeds when downloading

    When downloading, fan speeds up considerably, especially on movies.
    Thnaks
    JRC

    So does mine.  Also, watching clips on YouTube.  Anything that will use the processor will start to generate heat and the fan speed will start to increase.  Not to worry.

  • Lenovo G560 overheating. Need tips on fan speed control

    When I am watching movies on my G560 laptop, the area to the left of my touchpad is getting very hot and the laptop is shutting down at times.
    When I bought my laptop I used to hear fan noise, but I have noticed recently that I do not hear the fan any more. I was wondering of there was a way to check the fan speed and manually alter it.
    The warranty on my G560 is running out with in a month or so, a quick response would be appreciated.

    the cpu greece tests over the years are the most bunch of snake oil i ever seen.
    one review site did a test with 50 and used choclate and fingernail polish to show most are complete waste of money.
    compaq builds junk.
    lenovo dose not.
    the real reason is the notebook makers dont even built the latops.
    there like 3 companys that make 90% of the worlds notebooks and pc.
    you never even heard of them either.
    they make the sonys,acers and so on in a plant on a line with dozens of brands.
    just like the way foxconn makes the apples these are huge companys that make the products per instruction of the notebook brand.
    notebooks are not like desktops one bit because they are in a tiny space where heat puts a curse in the board.
    when you release this you release that spot.
    the part of contact for a cpu die is really tiny so it dont have to make the same contact point as cpu cooler.
    cpu coolers of notebook are well designed unlike the desktop cooler they make very good contact.
    discrete graphics is another story most of all on compaqs with they used a very bad design and had majior issues with.
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    the fan noise issue well that was more of a watch out for sandy bridge issue as sandy bridge can be a very hot chip.
    undervolting the chip makes a huge difference in heat as it comes with no performance loss.
    it also dont change the way the cpu sits.
    when the cpu was mated to the motherboard it perfict that day.
    when you pull the cpu now it never fit the same exact way as it has been stressed over time by the tourqe and the heat.
    pulling it will effect the fit.
    most people dont have the skill to change the greece on a cpu because they will use to much and unlike a desktop cpu that has no open transistors on the surface the mobile cpu dose.
    they will add too much and it will run and short out them.
    look at a pic of a mobile cpu and then a desktop cpu.
    a very different design.
    what you telling people is a skill they dont have because they have no idea that a simple mistake will cost them hundreads of dollers.
    notebook cpu run 200-300 dollers and some 500 bucks.
    pulling the cpu heatsink will effect it natural fit because it under tenion.
    i know this because i know metals well and i have 20 years of experence in this area.
    i alos worked for a company long ago that made robots for the waffer cpu come from.
    i think some people think they might know a quik fix because they built a pc before but notebooks are very different.
    i do custom notebook setups for people up here in boston who are willing to spend more on my labour then most notebooks cost.
    when i set up a pc it takes me 4-6 hours normally thats a standard win 7 time with all security and services adjusted complete.
    people pay for my services because they get longer run times and they stomp anything even notebook makers that charge thousands for custom setups.
    if i thought putting snake oil on a cpu would lower temps i would do it just for the lower fan noise and power use it would save.
    i know the moment i release the heatsink i never recreate the same exact fit it had under the stress that time made and the point of contact metal to metal will allways be better then if you add silicon to it.
    most people dont get that more then a pin head will be more then enough because more then that will cause a heat barrier and lower that.
    there whole point to thermal paste is to fill graps in the metal that are from the lapping process.
    it not to help cool it like some think.
    no thermal paste will ever work better then a pure magnetic grip of metal to metal.
    infact if you machine two blocks perfict they stick to each other as if they were magnets.
    tourqe them and add heat and they never do that again.
    that why latops heatsinks i feel are much more different them desktops one and what most people dont grasp.
    dont belive me call your high school science teacher and he explaine why to you.

  • Northbridge fan speed

    I just bought a MSI K8N Neo3 nForce 4 mainboard. I have updated the bios to the latest version. Activated cool and quiet, and the smart cpu fan control. When I enter the bios the northbridge fan works at around 7500 rpm! And make so much noise. Can this be correct. Can I somehowe slow it down? It also seem like the cpu fan goes to fast, over 3000, the temperature on the cpu is 30 degrees. It's a AMD semperon 2800+. Somebody help me?

    It's been posted many times already.
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    It will go as low as 2800rpm,but keeping it around 5400rpm should do the job just fine.
    I run it around 5000rpm(jumps up and down between 5000 and 5400) and also I've ordered a replacement fan from msi in the netherlands,it's on the way free of charge.
    I did this because now I've greased the standard fan several times already because of the grinding noise it sometimes produces,even at 5400rpm.
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    Quote
    Can I somehowe slow it down? It also seem like the cpu fan goes to fast, over 3000, the temperature on the cpu is 30 degrees.
    This seems in order.If you can't lower the cpu fan speed you might need a bios update or cpu driver update.
    Or your cpu isn't supported by the cool&quiet chip.

  • Macbook freezes when charging

    Hi,
    I have a white unibody macbook (late 2009 model) ; It functions normally when being used. However, when I have put the macbook on charging and if not used for long time, macbook freezes. Only mouse cursor moves but nothing happens. Everytime, i need to hard boot to get the system back.
    Don't see any activity on the hard drive and also, the CPU is normal, the fan speed is normal.
    Tried PRAM reset but didn't work.
    Any suggestions that could help to identify the root cause.
    Thanks,

    The problem is that there aren't any drivers for the MacBook that are compatible with Windows 8, so you will have to wait. I haven't heard freezing on the final Windows 8 version on MacBooks, so it looks like the final version fixes that problem

  • MBP (2010) is extremely hot when charging

    I just bought a new MBP 15' and I found it becomes very hot when charging --- case is closed. And I can hear the fan is working intermittently. I open the case and let it charging, then the fan stops working and the case is cooling several somewhat. In my old MBP (15' 2009 )model, no this issue. I always close the case and let it charge overnight. In the morning I can feel the case is as cold as ice. Can anyone explain to me is this normal or how can I adjust ? Does Apple apply some new technology in battery? Thanks in advance.

    +and finally adjust the fan control+
    I hope you're not using smcfancontrol or some other utility that changes the normal operating parameters Apple set for the fans ? They have been know to cause problems and I strongly advise against using things like that ... (Problems such as; running the fans at a higher speed for much longer than they are designed for and so the motors burn out; the temperature sensors getting stuck/confused and not coming on as they are supposed to, causing extreme overheating etc.)
    If it's asleep then nothing should be running at all ...

  • MSI ge70 makes more noise when charger is plugged in.

    Hi, my MSI ge70 makes alot more noise when it is plugged in to the charger, i have the feeling that my gpu starts running harder...
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    Regards

    jea it is , as I noticed it as well
    when you plug in your charger , your laptop has more Current to use eg. more power
    that means your laptop needs more cooling thus the higher fan speeds :D
    I also noticed that the turbo boost only works on AC , think that's why the fans speed up

  • T410 - fan noise whilst battery is charging

    Hello everyone,
    I own a T410 for about a month now and still have fan noise problems. They only appear when I charge the battery. The fan speeds up and get annoyingly loud just after I plug it in. It's like the cpu is running 100%, but it is not! When the battery is charged or I pull the plug the fan gets silent again.
    Also the notebook does not get hot. Everything seems normal, except for the noise.
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    It is a T410 with Nvidia Optimus. Preloaded OS. Newest power manager and nvidia drivers.
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    @semjorka,
    Welcome to Lenovo forums, could you try updating your BIOS and see if it helps (do ensure reboot first before flashing the BIOS). Also update all your software using ThinkVantage System Update and Windows Update as well.
    //JameZ
    Check out the Community Knowledge Base for hints and tips.
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    X240 | 8GB RAM | 512GB Samsung SSD

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