Q: Ram upgrade
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Apr 15, 2016 11:02 PMby K Shaffer,According to the information you've already provided, the EFI Firmware Update for your MacBook5.1
has already been applied; the software would have been available several years ago.
Boot ROM or SMC Version Information:
MacBook5,1 will update to MB51.007D.003
MacBook5,2 will update to MB52.0088.005
The above image information is from a link in this OWC statement:
*NOTE: these models require the most current EFI version as well
as Mac OS X v10.6.6 or later. Please visit this link for more information
See this document for those details:
• MacBook EFI Firmware Update 1.4
You could double-check the details to be certain...
{Also look into the info at OWC page link above about Firmware update}
• About EFI and SMC firmware updates for Intel-based Mac computers - Apple Support
• About EFI firmware updates on Mac computers (early 2010 and earlier) - Apple Support
• MacBook: How to remove or install memory - Apple Support
Good luck & happy computing!
edited
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Apr 21, 2016 12:38 PMby Rache02,Hi, i would like to ask i might have a change of mind. Cos i wanted to buy crucial memory instead of the OwC. I needed to know which one is better for my mac.
THe one i wanted to buy was from amazon
pls check if its good And if there is a specific specs that i need to check on the crucial mac bfor i buy. Cos i checked and the only difference i saw was the voltage. on the owc it is 1.50 and it says DDR3 while crucial has it as 1.35. And DDR3L
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Apr 22, 2016 11:47 AMby K Shaffer,The RAM specs (power use) are generally similar; however the 1.35v version should be
assuredly better for use in a battery powered products where consumption of a charge
may be a tiny bit less with a 1.35v verses a 1.5v. Some charts of replacement or upgrade
parts will show if the later spec would include reference to the L series lower power chip.
Sometimes a vendor or maker specs (regarding their part numbers) will show one number
of their part as being correct to use in a specific computer; while another source of same
brand may offer a different part number. This can be confusing; and so when considering
an upgrade (crucial chips) I found this was the case. I contacted crucial directly and asked
about the part numbers and the vendors; they assured me the other reseller was one of
their trusted vendors and the part number differences were actually the same spec part.
Of course, some of these chips may be better for a portable computer where battery life
could be enhanced (depending on other user-settings and tasks set before the Mac) or
if the computer is a desktop model, the power consumption may not be as big a deal.
I found my desktop computer could use either a version for laptop, or one said to be for
a desktop. My thinking was the low-power chips would generate less heat; and heat is
an indicator of wasted power. Also extra heat can shorten life of other computer parts.
Either chip could be adequate and in some cases, a 1.5v chip may use less and still be OK.
Hopefully whatever you've chosen is the correct spec chip and either company will guarantee
the parts; just be sure the numbers are the right ones for your version computer. Ask them.
Contact the crucial company and provide the part number and ask if they can verify it to be
the correct part for your computer. They may offer a different part number at crucial.com.
Good luck & happy computing!
