MacBook Pro models with 13" displays

4506 Questions View all

Why is MacBook so loud and heats up so much?

I've taken my Macbook to Apple to repair my trackpad and asked them to check out why is heats up so much. They told me there isn't any problems they can detect when they run their software checkup thing. So why is it heating up so bad? It also gets very very loud but it never turns off on me, its just loud and overheats alot! What can I do to fix this? It get to the point where even touching the keyboard annoys me because its HOT!

Also, I have opened it up myself to clean for dirt and dust with air compressor and still nothing improves.

Update

I'm doing normal activities, could be surfin the net, class work or watching movies. Of course when watching movies it's gets loud and hotter quicker, but the end result is the same. Would anyone suggest me replacing fan, or is that just unnecessary?

Answered! View the answer I have this problem too

Is this a good question?

Score 1

Comments:

What are you doing on the laptop when it gets hot?

by

So, I kind of gave up. I decided to upgrade to the new MacBook Pro Air coming out soon, and am deciding to sell this old MacBook. I wiped the hard drive and everything off of it and reinstalled Lion. Funny thing, the laptop does not overheat anymore, battery last a whole lot longer and it is much faster. I guess I had too many apps installed because now it works great. Still selling it though lol. I guess the new thermal paste I put in could have probably helped in some way, so I don't regret wasting time on that, plus I learned something new! Thank you all!

by

Download a temperature app like system buddy from the app store. It should tell you what temperature your mac is at.

by

I'm not sure this is an answer.. I think it's helpful but it's not solving a problem/diagnosing anything. Perhaps it would be better as a comment?

by

Add a comment

3 Answers

Chosen Solution

My guess would be that your thermal paste is no good any more. If the thermal paste is no good, the processor can't transfer heat to the heatsinks so it will get hot and fans will not do you much good. I would say find your specific MBP 13" and follow our heatsink guide. Remove the heat sink and use this guide to properly re-apply a high quality thermal paste.

Good luck and hope this helps

Was this answer helpful?

Score 1

Comments:

I was afraid of that, but I don't see where it goes when I look on MacBook Unibody Model A1278 Heat Sink Replacement

by

On the last step (step 30), there are the two green squares which the processors sit on. The surfaces of the processors are where the thermal paste goes.

by

I was wondering what are the possible problems that could happen, if I were to mess up some how?

by

Add a comment

For others who have a similar problem:

You may have other hardware issues besides the thermal paste issue. You could also be encountering a software issue which I would isolate out first as I often see this as the root issue more often. In this case wiping down the HD proved it was more likely a software issue.

I would start by checking the OS and Apps, make sure you have the latest updates running of your apps and any add-ons. If you have any older OS add-ons they may not play well with the newest versions of OS-X (Snow Leopard or Lion) disable them. Also make sure you don't have applications loading on boot.

If that doesn't solve your issue see if you can boot under an external HD which has a fresh copy of OS on it. If the system does not get hot like before using the external HD apps you can focus on isolating out what is running on your systems internal HD that is chewing up your CPU causing it to over heat.

You could have some Malware running or some background Java applet running inside your web browser. Make sure yo don't have the Flashback Trojan running using this tool from Apple if your running Lion with out Java (http://www.cultofmac.com/160766/apple-re...) Using Apple Software update will take care of older versions of OS-X and Lion that has Java.

To isolate out other malware or other background apps from the OS try creating an new user account on your system. Using this account on your internal HD see if the heat problem persists. If not you have something running in the browser under your original user account. Going into the browser settings fully reset all of it's saved items (Safari > Reset Safari... check off all of the items). Doing this will loose any saved settings so make sure you have written down your web server user accounts and passwords as well as any important URL links. Remove any add-ins and download and instal fresh copies. Lastly, Flash is not well written and does cause excessive heating when watching movies (Hulu) Adobe just released a Beta version of Flash 11.3 that is much better in using the systems resources (http://www.cultofmac.com/160343/adobe-re...)

If the problem is within your OS services you may need to get a good antivirus app to clean out what is running in background (malware trojan software).

I would also at this point defrag the HD as drives that are very full tend to require more effort to access causing heat. You may need to make more free space so less swapping takes place.

If this doesn't solve it you will need to dig deeper into isolating out the different processes running on your system which is a bit of science and luck using Apples 'Activity Monitor' application.

If you really suspect the issue is hardware:

I would start checking for dust and debris issues inside. Check for a clogged fan and vents. Using canned air a small paint brush carefully scrub out the vents, case & logic bd, blow out any dust you do find. You may not have cleaned things out well enough the first time you did this.

Next using 'Check My Temp' application available from the Mac App Store you can monitor the different temp sensors your system has you might be able to isolate out what area of your system is running hotter (don't assume the hottest thing is the issue) HINT: see if a friend who has a similar model can run this app as well to compare against. You may find one of the fans is not working correctly or the HD has issues besides the CPU not cooling because the thermal paste has dried out.

Was this answer helpful?

Score 1
Add a comment

Had the same problem for 1 year. Mostly when CPU had intensive work to do. It has clearly to do with heat transfer because when I put my laptop on a cold surface the vents do not need to go wild anymore.

After looking how complex it was to open the case and clean the heat sink directly I decided to try a first less invasive approach with a vacuum cleaner.

Using the smallest tube, I vacuumed the vents in the rear of the laptop for 2-3 minutes.

After that I did not reach 6000 rpm anymore.

i would advise it as a first try before opening the case.

Was this answer helpful?

Score 0

Comments:

Did vaccuming solve your problem? Also, should the laptop be off when I try this?

by

Don't use a vacuum! Use can'ed air or compressed air and a soft brush to scrub the dust loose. Vacuums create static (ESD) which will kill your equipment.

by

I agree, use an air compressor. I actually did replace the heat hink. It's very easy, but it didnt solve my problem much. The surface of where you use the laptop does play a huge role as air does not get released as well as it should. I did switch to an SSD and that has also helped, I can be wrong but, it seems like it doesn't use as much power as it did before.

by

Add a comment

Add your answer

Steve will be eternally grateful.
View Statistics:

Past 24 Hours: 8

Past 7 Days: 55

Past 30 Days: 144

All Time: 30,799