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Member Since: Dec 01, 2006
Posts: 1,495
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Mac Specs: MBP 2.4/2GB/200HD/256 8600gt

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Originally Posted by oakie View Post
MB403LL/A macbooks support up to 4GB of RAM. nice try though.

it's because the Corsair units have an incorrect ICC profile loaded into them and are incompatible with the MacBooks. the SMC isnt able to identify them properly... but when you use the combination of the Corsair module with one of your stock modules, it works fine as the SMC relies on the ICC profile stored in the stock module to identify the modules loaded in the banks.

the lesson learned is to only buy RAM from shops that specialize in parts and support for Macs. try Other World Computing (, RAMJET Inc. - High Performance Mac Memory, or the *Apple* section on newegg. these suppliers test the modules for compliance prior to sale. their prices are also very competitive and they usually feature a lifetime guarantee.
Newegg is a good one!

I just bought the Mushkin Set 2x2GB. Funny thing was the set I bought was for PC (85$), and the APple set was 89$. The only difference in part number was the apple set had an "A" at the end. I took the chance and got the regular non-A set, and am Fine on my MBP.

2.4ghz Unibody | Hitachi 320GB 7200 | 256MB 9600gt
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