On MacBook, which is bank 0, which is bank 1? I'm referring to the memory slots when you're looking at them with the battery removed. Is bank 0 on the left? I installed new RAM and one side is not working.
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On MacBook, which is bank 0, which is bank 1?
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Just try pushing down hard on both modules to see if they're both seated all the way into the slot. Seating ram takes a very surprising amount of force. Push them hard into the slot until right before it feels like something might break if you push any harder.
My understanding is that Bank 0 is the one on the right as you look at it upside down...closer to the USB ports.