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Early 2011 Model: A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor

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Memory Replacement Voltage Question

I want to replace the RAM in my MBP model A1278 (early 2011). Wondering if there was a certain voltage that the RAM needs to be. When looking to purchase I see that there are options in voltage that are 1.35V or 1.5V. Do both voltages work in my version of the MBP or should I be careful and purchase only one of the above options. Thank you.

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Both voltages will work just fine in your MBP

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zach will be eternally grateful.
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