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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

changing RAM from 1600mhz to 1066mhz


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Duarte Costa

 
Member Since: Jul 03, 2012
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Hi there,

Just bough a 2x4gb 1600Mhz So-DIMM from Kingston to upgrade my early 2009 MacBook Pro.
When I changed the ram modules, the only thing I heard was three bips.
After some time, I realized that this models (MAC model is 5.1) only accept RAM running at 1066mhz.
Yes, I should have made some research before buying the RAM modules

Obviously, I do not want to lose my money, so I was wondering if there is a way to tune this RAM modules to work at 1066mhz. Is there a way to do this in a MAC? I know there are some apps for that in WINDOWS.

A little help, please. Thanks!!

Duarte
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ycl1688

 
Member Since: Mar 09, 2011
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Mac Specs: mbp 15 2009, mbp 13 2010

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stick with what the specific one recommend by the ram manufacturer
try crucial.com see what they recommend.
there are requirements to fit for ram upgrade.
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Duarte Costa

 
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Thank you for your reply,

You are absolutely right. I should have paid more attention.

Althoug the safest thing to do know would be to follow your advise, I just wonder if there is a way to avoid it.
Since I will lower the speed, there will be no extra-stress upon the components. Maybe I can get away with this mess by "down-clocking" the RAM.
Is there a way? I'm willing to try it, before I spend more money on some RAM.

Thank you
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pigoo3

 
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Quote:
Originally Posted by Duarte Costa View Post
Is there a way? I'm willing to try it, before I spend more money on some RAM.

Thank you
Trying to install 1600mhz ram into a computer that requires 1066mhz ram...is like trying to put 6 gallons of water into a 5 gallon bucket...it just won't work.

The reason why you're getting the "3 beeps"...is specifically due to incompatible ram. Get the correct ram!

- Nick

- Computer slow, too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some speedup tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
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ycl1688

 
Member Since: Mar 09, 2011
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Mac Specs: mbp 15 2009, mbp 13 2010

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I take it that you want to upgrade from 2x2gb to 2x4gb. In a way you have to abide by the
way the configuration set up.
If you need the real speed upgrade your hard drive to SSD, along with Ram upgrade your
mbp will speed up to certain degree.
Again it depends on how you like it, ram upgrade might do it for you.
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Duarte Costa

 
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Actually, I need more RAM because of MAYA renders. They are batched in RAM, not in disk. SO, 2x1gb of RAM is clearly not enough.

Does anyone knows if there is an option in BIOS that set's the RAM speed?
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ycl1688

 
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2x2 gb is the max you can upgrade to.
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Duarte Costa

 
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Ok, I give up. Will try to get back my money.

Thanks guys

"Pior que errar, é não querer aprender com os erros."
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pigoo3

 
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Quote:
Originally Posted by Duarte Costa View Post
Does anyone knows if there is an option in BIOS that set's the RAM speed?
Macintosh computers do not have BIOS!

- Nick

- Computer slow, too many "beachballs", read this: Beachballs
- Computer seems slower than it used to? Read this for some speedup tips: Speedup
- Almost full hard drive? Some solutions. Out of Space
- Apple Battery Info. Battery
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