Macbook 4.1 CPU working at 1.2Ghz

Question

Macbook 4.1 CPU working at 1.2Ghz

Hi everyone!

Last year I bought a second hand macbook 4.1.

It had some obvious signs of missuse: The battery was swollen and the screen was broken. It also didn't had the original power adaptor.

I always found it strange that the fans never turned on even when both cores were at a 100% load for a long time and the temperature never went over 60C.

So yesterday I installed Coolbook and found out that the CPU never goes over 1.2Ghz. I tried to change the settings. but with no effect.

Does anyone know how can I "overclock" my Macbook 13?

The idea is of course restore it to it's factory settings.

MacBook, Mac OS X (10.6.8)

Posted on Jan 9, 2013 1:49 PM

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Answer 1

Best reply

Dave Stowe

Level 5

5,180 points

Jan 9, 2013 3:01 PM in response to henriquefrombarcelos

Are you running the MacBook without the battery....on the AC adapter only?....if so that could be the issue..

support.apple.com/kb/HT2332

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Answer 2

Jan 9, 2013 3:10 PM in response to Dave Stowe

Indeed you are correct! I was using it without the battery.

Tomorrow I'll try with a battery and post the results.

Thank you very much in advance!

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Answer 3

Jan 9, 2013 4:15 PM in response to henriquefrombarcelos

There’s one problem with running your MacBook with the battery removed. MacBooks and MacBook Pros automatically reduce the processor speed by about half when the battery is removed.
http://support.apple.com/kb/HT2332
http://www.tomshardware.com/news/apple-macbook-pro-battery-benchmarks,6643.html

You can get a new third party battery fairly cheap on eBay. Every MacBook from 2006 through Mid 2009 except the Late 2008 Aluminum Unibody and the Late 2009 and 2010 White Unibodies use the same A1185 battery.

Black Batteries http://shop.ebay.com/i.html?_nkw=macbook+black+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+white+battery&_osacat=0&_trksid=p3286.c0. m 270.l1313

White Batteries http://shop.ebay.com/i.html?_nkw=macbook+white+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+black+battery&_osacat=0&_trksid=p3286.c0. m 270.l1313

Or for $129 from The Apple Store http://store.apple.com/us/product/MA566LL/A?mco=MTY3ODQ5OTY

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Answer 4

Jan 10, 2013 12:45 AM in response to frederic1943

Thank you very much for the help!

Today I tested with the battery and it works at full speed!

Now I need to buy a new battery.

I already bought one of those third party batteries for my other Macbook 13'' 2.1 and I'm very happy with it (been using it for more than one year, already made 167 cycles with it).

Anyway I don't want to spend 126$ on a old computer...

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