Problem after memory upgrade
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/64/400000
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