iMac 27-inch, Late 2012- Problem with 3 b4 slots for RAM
Hello. My Imac (27-inch, Late 2012) has the original memory (2x4GB Elpida) in slots 1 and 2. When trying to install in slots 1+3, 1+4, 2+3, 2+4 it beeps three times and the Mac does not start. Replacing the original memory in slots 1+2 with new memory (2x8GB) is successful. Can not add memory to slots 3 and 4 (old memory or new). Please advise where to look for the problem.
Это хороший вопрос?
As you can see here your system can support 32GB!
But you need the correct SO-DIMMs
PC3-12800 1600 MHz DDR3L SDRAM (204-pin)
27” iMac "Core i5" 2.9GHz
27” iMac "Core i7" 3.4GHz
из Dan