Ram Upgrade to 8gb
Can I upgrade ram of 2x 2 gb ram 1067 mhz to 8gb ram 1333 mhz instead of 8gb 1066 mhz. Will there be any problem if a higher bus speed ram is used?
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If your machine is indeed a MBP 13" Unibody Mid 2010, here's the specs:
*Originally, both the official and actual maximum RAM was 8 GB. However, as confirmed by OWC, if running OS X 10.7.5 or higher, updated with the latest EFI, and equipped with proper specification memory modules, this model can support up to 16 GB of RAM.
*
RAM Type: PC3-8500 DDR3 Min. RAM Speed: 1066 MHz
Details: Supports 1066 MHz PC3-8500 DDR3 SDRAM.
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Hi,
Whats an EFI?
Am currently running on 4gb DDR3 1066 MHz PC3-8500 DDR3 SDRAM. I want to upgrade it to 8gb.
My question is do I need to specifically put in 1066 MHz ram or can I install 1333 MHz ram. Will the laptop function properly as it would function with 1066 MHz, will there be any problem?
Follow this Apple T/N: About EFI and SMC firmware updates for Intel-based Mac computers. Make sure you are at the levels listed or newer.
I'm researching this question, and finding references elsewhere to problems that this Model (7,1) has using two sticks of RAM at 1333 speed; apparently, one or both of the chips must be 1066 to drag the speed down... I'm adding an a reference in my answer below..
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From the limited information about your laptop I can't guarantee this 100%
but yes you can install 1333MHZ with no problem
you may notice difference between 1067MHZ and 1333MHZ but it isn't a huge difference
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From my reading, using 8gb (or even 16gb) is not an issue, but using the faster 1333Mhz RAM is apparently a problem.
The article quoted below shows in detail (with video) how to hack the RAM to run at a lower speed. It uses the free Windows only ThaiPhoon burner, which can only be run from BootCamp or a BartPE disc (not a VM!).
The 4GB my mid-2010 13″ MacBook Pro came with just wasn’t cutting it for me anymore so I picked up a couple of 4GB DDR3 1333MHz sticks for about $40. If you’re like me, you don’t tend to pay too much attention to the nitty-gritty details of something as trivial as a RAM upgrade. Of course, I knew that my model MacBook Pro only supports up to 1066MHz DDR3 RAM, but I assumed that the faster RAM would downclock itself to match the 1066MHz limitations of the MacBook Pro itself. Unfortunately, this was not the case and when booting with 8GB of RAM, my Mac’s loading indicator would freeze when booting the OS.
...(detailed instructions, intermediate skill level)...
After that, simply power down your virtual machine, eject your bootable Windows disc and flash drive, and install both 4GB sticks of RAM into your MacBook. The stick you just reflashed to 1066MHz will cause the remaining faster 1333MHz stick to downclock to 1066MHz as well and your Mac will boot right up without freezing!
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