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I recently purchased the following memory upgrade from Apple: MD019G/A Apple Memory Module 8GB 1333MHz DDR3 (PC3-10600) - 2x4GB For my MBP (Early 2011) 2.0Ghz Installation went fine. The system booted ok. Everything seemed fine, when I looked at my system information it showed that the 8GB of RAM were running at 1333Mhz. Then I rebooted my MBP and started Apple Hardware Test. First test passed fine, but during the 2nd test I got this error: “4MEM/64/40000000 0x84486198”. Then I turned off power, when i turned it on again, I’ve got a black screen with 3 beeps and 3 front led flashes. I tried to swap memory modules with no success. When I inserted the original memory back system booted up as usual without any problems. After that I reseted PRAM and NVRAM, reinstalled the new memory and I got 3 beeps again. Any suggestions please?
You have bad ram. The 3 beeps signifies that there is defective ram in your unit. You should contact Apple and ask for a replacement or a refund and then buy ram from another store like OWC or Crucial because they are much cheeper and have never come defective when I ordered them. Hope this Helps
