Fan problem...

Can anyone tell me why my fan is a little loud on my macbook pro. I have the newest model, and I dont have that much stuff on here at all, I am running with Lion. When I got it 4 months ago I could not hear the fan, but as time goes on the fan gets louder and louder, like noticable. Even if its just sitting on the desktop screen, what could this be....?

Why not take advantage of the 1 year limited warranty Apple provides by taking it to an Apple store or an AASP?

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Mid 2009 macbook pro battery is dead and fan is constantly ramped up (not due to heat). Would installing a new battery fix the fan problem?

Battery icon has an "x" over it and I need to have my laptop plugged in to be on. I've ordered a new battery to install, but I was wondering if it's possible that something else might be causing the fan to be on over drive constantly. I've tried resenting the SMC and the PRAM, but nothing has stopped the fans from running at higher than normal speeds.

If you've updated to Mavericks, you'll either need to use the original install DVD containing the AHT, or download the right one from Apple's servers, then replace the hidden /System/Library/CoreServices.diagnostics folder.
I think that replacing the battery is likely to stop the fan problem anyway.

Satelite l655 - s5094 - werid cooling fan problem

ok here the deal when my laptops is around 40 C the fan runs at 100% and as the temp rises it slows down to bare min and when the temp hits high then 70 C it gose back to 100 %. i got a colling pad but it barly helped. and fan control with speed fan out of the question unitll they support the laptop. if there a way to change the fan setting that would be great to know.

Satellite L655-S5146 Specifications
Satellite L655-S5146 Downloads
Heatsinks don't need to be changed. They need to be cleaned, which you've done.
It's not clear from your post, if your fan problems persisted after you cleaned it. If they have, sounds like the fan is failing to me.
Try one these. Got the part number from here. From your model's parts list here.
Please let us know how it works out. Good luck.
Mike

BIOS 902 cooling fan problem

Today, I powered my laptop and see the error BIOS 902, cooling fan problem. Then the laptop shutdown. However when I tried to power the laptop at third time, It can start up normally and I can use my laptop for more than 8 hours
I found the solution in google that upgrading the BIOS. However the error 902 still there. My laptop always start up normally at third time.
What should I do? Should I bring my laptop to warranty center?
Thanks for your advance!

Please identify your notebook/pc .
Look at the base/rear/side of the notebook/pc at the barcoded sticker.
Post items numbered 1 and 2 on the following image. Your barcode may be slightly different but will still have the important imformation needed for us to help you.
###Do not post the serial number as it is personal information.###
Post the installed operating system version ( and whether it is 32 or 64-bit ) and whether the CPU is an AMD or Intel product
Not posting all of the information as requested will delay our responses and slow troubleshooting of the issue that led you to author a thread.
Best regards,
erico
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IMac 27" (mid 2010): Will replacing the HD cause fan problems?

Hi,
I have an iMac 27" (mid 2010). My HD is broken, and I'd like to replace it. I've already installed an SSD, so replacing the HD shouldn't be much of a problem.
However I've read that replacing the HD causes the fan to spin up all the time. Some sites say this started one generation later, but some remain unspecific or say that this problem affects all iMacs. Before I replace my HD, I'd like to know what to expect.
So my question is: in my 2010 iMac, can I replace the HD without causing fan problems (provided I put the temp plug in the right place )?
Best regards,
F

OWC is mistaken. I don't know why they keep saying that. (I'm not even certain the OWC blog linked above related to using the same make drive on the late 2009s was ever correct. I had a long phone conversation with an upper level WD tech some time ago who said that the originals were special ordered by Apple.) Those drives have Apple proprietary firmware which puts the temp sensor output to the jumper block, and you cannot just replace with a drive of the same manufacturer. A non-Apple WD drive will not have that connection at the jumper block.
Two possibilities: Get an external stick-on temp sensor that will work with your model or use SSD Fan Control.
http://exirion.net/ssdfanctrl/
If I'm mistaken and you do get it to work directly with a replacement WD drive I will be pleasantly surprised, since I have a Late 2009 which will need a new drive sooner or later. Please post back with your results.

Return for Fan Problem (aka mooing)?

Has anyone actually returned their Macbook for the fans coming on and off (or "mooing")? If so, did you get a moo-free MB?
The mooing isn't too bad - and I have hope that software could fix it; but if there are Macbooks that don't moo, man, I would like one. However, no point in going thru the process if there is no possibility of getting a moo-free MB.
Thanks.

There definitely ARE some that do not moo. Or if they do, they do it much softer. Last night I had a white one that, every 10 seconds, would moo. It was horrible. Even with my TV on, I could still hear that fan revv up and then revv right back down, then 10 seconds later the process would repeat itself. I certainly couldn't live with that. I'm a student and would surely be kicked out of class with a laptop that sounded like a zoo, lol.
So anyway, I returned it today (demanding an exchange). What got me is when I explained the moo'ing to the girl, she sounded surprised and that she'd never heard of the problem before. THEN she takes it in back for about 5 or so minutes and comes back out and persists my MacBook didn't have a fan problem. I told her the machine had to be running for about 15-20 mins before it would kick in. Well she's gets my exchange and then continues to tell me "they're supposed to do that." She said hers at home did it. She also even commented about the posts on these forums about it at that point, too. I was thinking, okay then why didn't you tell me that when I explained the problem? I have a feeling the manager told her to tell me that.
Well, I got my black one home today and have been using it for about an hour before work (while it charged), and now for almost 2 hours (running down the battery). I've only been using it lightly and my temp hasn't gotten higher than 60C even on AC power. Perhaps this is why it doesn't moo? My white last night was close to 70C (on light use) and the moo wouldn't quit.
Unfortunately, this one does whine (somewhat loud on AC power, but very very soft on battery). However, that is a non-issue because turning on bluetooth shuts it up right away, or using QuietMBP works also. Whine I can deal with, but there is no work around for the moo.
So, my advice, is yes, return these moo'ing MacBooks. Like others have said, the more returns they get back for this fan issue, the faster they will (should lol) correct it. There's no need in my eyes to sell a laptop that behaves such as some of these do. I do not pay well over a thousand dollars to have to sit in a zoo-like atmosphere. And that's exactly what I told the sales woman. A lot of times I sit in quiet and this fan noise is too loud to ignore. However, I really do believe this is tied to a heat issue, because it is clear some of these run much cooler on light use than others do. That must be why I haven't heard the fan on this one - my temp is much lower than the one I had that moo'ed.

MOVED: [Other 865 Series] mainboard fan problem

This topic has been moved to Mega PC series.
[Other 865 Series] mainboard fan problem

thanks, I'll try it
Quote from: otrofox on 01-June-05, 05:31:44
Have a look to this thread and give it a try.
Take care with temps. After unplugging the sys fan, check your temps immediately and for a long time. Make some tests to ensure this fan is not needed in your Mega.
Another solution should be adding a resistor (from 20 to 80 Ohms) to low the revs.

Notebook fan problem

Hi,
I've had my laptop for 2 years now, my laptop: Compaq Presario CQ60 Notebook PC, has a fan problem. My fan stopped working when I turn on my laptop. After using my laptop for a while (when it starts to turn overheat), my fan kicks in and only works for exactly one hour, after the hour, my fan turns off. While the fan is on, it cools down my laptop. My fan won't working again until a couple hours later or when I restart my laptop and wait for it to overheat again.
Can anyone help me with this problem?

If you just bought it and it's only a few months old then it should be covered for a replacement. You shouldn't be forced to buy a new one, HP should give you one to make it right.
I hear you, if you are busy you don't have time but don't let them swindle you. At least give the computer to someone who does have time and tell them to do a web chat the warranty people and explain that it runs at 98 C (or over 200 F) and that it needs to be replaced and could have burned you. Do this before the warranty period is gone. I think new computers come with a year warranty.
I say webchat because it is easier to keep a record of who you have spoken with and what they say in case they try to weasel out of replacing it. If they give you any trouble about it, post the log or send it to me in a message and I will tell you how to deal with them.
For several months I had to send emails back and forth and go through three years of receipts to get them to honor a warranty and I saved the logs of our chats and I know every sneaky trick they use to try and deny people service.

T5220 Fan problem

Hi,
sorry if this is the wrong forum.
We have a T5220 in the office, yesterday this message appeared
"Jan 30 12:34:06 T5220 SC Alert: [ID 118048 daemon.alert] IPMI | critical: ID = fc14 : 01/30/2009 : 12:33:06 : Fan : /FB0/FM0/F0/TACH : Lower Non-recoverable going low : reading 1600 < threshold 2400 RPM"
Could anyone shed a bit more light on this? It's obviously a fan problem but will it need to be replaced?
Thanks,
Paul

I would have the fan replaced. The fact that it is spinning way under speed is an issue as these very compact boxes require forced airflow.

Macbook fan problem?!

Hi. Just today I have had several random shutdowns. Had the Macbook for 10months now and it's been brilliant so I was a tad surprised when it started playing me up!
After a few looks on google it seems lots of people experience this problem with different reasons for it. I first thought it was the system fan as it did seem very hot but the fan hadn't kicked in. I tested the fan but I got a reading of 0rpm. SO I then ran the Hardware test and got the following error message:
4MOT/1/40000002 :Exhaust
So, I'm deffo thinking it's a fan problem and the CPU is shutting down cos of the heat. Now, I did not buy the extended warranty but I have checked with my serial number and have until Feb 2008 on the standard 12month warranty - my next step is to contact Apple to see what they will do. Does anyone know whether I am assuming correctly and if they know what Apple may do for me?!?!
Thanks

smorg99 wrote:
Would it deffo be the logic board then?
deffo?
I have no idea if it is the logic board or not. I know that Macbooks do not have many serviceable parts. To get to that fan may be a major undertaking. Typically, they want to get the unit repaired and back to the customer as soon as possible. They will swap out what they can do the fastest and diagnose and fix the actual broken part on their own time (or just toss it in the trash). But, of couse, I am just guessing.
How long would it take to replace this?!?
I have no idea.
Can't believe it - I love this notebook!!!
It is not as if you have many options. It will be a paperweight soon. They are machines and all machines break eventually. Either you have the misfortune to have one that isn't perfect or the good luck to have it break while the warranty is valid.

Tecra A11 Fan Problem

TECRA A11
PTSE3U-0C9TM6
Windows 7 Professional 6.1.7601 Service Pack 1
BIOS 3.20
Hi
My computer has a fan problem, sometimes fan speed up to maximum speed and the computer lockup. So I have to restart the computer. I have installed firmware updates but problem remains.
Someone have had this problem? Any solution?
Regards

Hi,
This issue had nothing to do with heat at all in my case. What you need to do is goto device manager, and then go under Universal Serial Bus controllers. From there you want to goto the properties of each Hub and Root Hub and uncheck "Allow the computer to turn off this device to save power" in the Power Management tab. Do this for all the hubs and root hubs.
I am not sure what causes this issue, but this has been a fix for us.
I made an account just to let you know! This issue took me a good week or two to narrow down.

Cooling fan problem msg during startup with my HP 2000 notebook pc

I have a Hewlett Packard HP 2000 notebook pc is showing cooling fan problem during startup please help me deal with this problem. I have a 64 bit operating system and I'm using Windows 7 Home Premium edition

Hi
Please find the link given below might help you to fix your issue. In case issue does not get resolved you might have to get the unit repaired.
System Fan (90b) error message on startup
Let us know how it goes!
"I work for HP."
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Manjunath

G5 Fan Problems with Leopard

I'd had problems controlling the fans on my dad's G5 tower under Tiger (and also under Panther), and I was hoping that they'd be solved once I migrated to Leopard. No such luck, it now appears. Before, the fans would only ramp-up in my user account, because that's where I did most of the system upgrades/updates. Now they do that in anyone's account, not just mine. Today I found that my mom had left the computer on unattended, and after an hour of doing nothing a kernel panic had resulted, with the fans going full blast. I managed to shut the system down, and barely averted a real disaster.
I need to know if there is something I can do to permanently fix this problem. Going into Energy Saver Preferences in each user account, and setting Processor Performance to Highest, won't serve as an adequate solution for long. Is there a firmware upgrade that can handle this? (I think there is for other systems IIRC, but not for a G5 tower that I know of.) The fan control problem has been with me through many system updates in Tiger and Panther, as I said, and short of buying a new Mac I'd like to know how to fix this.

I did indeed upgrade from Tiger, but no real options were given to me in installation (and I did not click on Customize). The only incompatibility I've seen to date has been with the print driver for our HP DeskJet 842c--the Leopard driver went haywire, so we had to reinstall v2.7.1 from the HP support site. Other than that, everything's been okay otherwise. I'm preparing to update anything else that needs updating, such as vital utilities.
The fan problem is what I believe caused the kernel panic. It's happened twice to my knowledge, and in both cases the computer was left on with the login screen up, and with no attempt made to login to an account. The computer was simply left on with nothing to do but attempt to self-destruct. (I have since posted a sign near the computer warning against this behavior on the user's part.)
The fact that the fans go berserk in this thing is why I ask if there's a firmware upgrade available for it, though by now there may no longer be any official support for G5 systems now that everything's gone Intel. I'm planning on getting a Mac of my own one day soon, but my folks can't afford a new system of their own for quite a long time to come, so this is it for them. And it needs to work properly. My mom likes to remind me that some people leave their systems on 24/7 without ill effects, but I remind her that we aren't as blessed as those people to have such a system. I really need a working solution to this.

IMac G5 1.6GHz 17" screen w/ 512mb RAM and a fan problem

I do not know if anybody else has had this problem, but I have a fan problem, my computer is very loud, I have seen other computers that are the same as mine, I think I have a very loud fan and it goes all the time.

Hello Walter - I am glad your problem has been resolved. What was probably not stressed enough in the posts you read is that you have to have a retail version of any new OS you want to install. Failing that, you would have to get install discs for exactly the same model iMac you have.
Make sure, that when the Keene store installs Tiger for you, that they give you the install discs so you can boot from them if you have any other problems. You might also consider getting more memory, you are operating with the bare minimum. Don't buy it at the Apple store, order it on line from [macsales.com] or [newegg.com] or [smalldog.com] it's much less expensive and really easy to install. Make sure that whatever memory you do buy has a lifetime guarantee.
If I stand on a hill, I can see Mt Monadnock

Tool Tech Video ram says failed ....hardware test shows fan problems...

Tool Tech Video ram says failed ....hardware test shows fan problems...in reference to error 4MOT/1/0000003:HDD
Anyone else experience this...and how is the fan a problems via hardware test but tool tech shows video ram failed?
Any feedback is appreciated.Computer only 6 weeks old.......:-(

My computer listed as having failed the VRAM test as well, but when I installed the Tech Tool software, it gave me the warning that the results of the test were not yet reliable for 10.5 and it might not test correctly. I've had none of the problems the the VRAM failure listed, and assume it's just an issue with the new OS and Tech Tool not being on the same page yet. PS: I love my Mac...but don't we all?

Mac Pro Fan Problem

Hi, I have been having some problems with a Mac Pro I have been working with. At the Start-up the Fan goes to top speed and once it logs-in the fan is still pretty loud. I've checking the Temperature of all the computer parts via a Temperature Diode, and its normal and not high. After searching the internet for hours looking for posts that were for the Mac Pro and not for the MacBook Pro (which comes up in about all the searches using the words Mac Pro Fan Problem) and I found some software all of which is not for Mac Pro's. Is there any application I can run do reduce the RPM of the Fans, Reset the Fan Speeds to only turn on when it get hot, or something along those lines.

Thats odd, seeing as Apple have it listed in the Support article:
To reset the SMC on a Mac Pro:
1) From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button until it turns off).
2) Unplug all cables from the computer, including the power cord and any display cables.
3) Wait at least fifteen seconds.
4) Plug the power cord back in, making sure the power button is not being pressed at the time. Then reconnect your keyboard and mouse to the computer.
5) Press the power button to start up your computer.
It does exactly the same thing as the SMC_RST button, simply by removing all power from the system. I would assume the reason for this would be that the SMC settings are stored in RAM, which is erased once the power is removed from the board, hence the minimum 15 secs wait which gives time for the capacitors in the power supply and system to discharge.
So yeah, it does do the trick, or has done for me in the past a few times.

Fan problem...

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