Q: MBP (Mid 2009) does not read memory from BANK 1
It seems I am having a problem similar to some other people, yet I don't see an explicit answer to the question.
Below is what shows from my system report. However, I have another 4 GB RAM of the same kind in BANK 1. I have swapped both sticks of RAM multiple times to check that they both in fact work.... unfortunately, BANK 1 never reads the RAM.. I have tried memtest and other similar processes I have seen in the forums, but all of those only check the RAM being read, not whether or not there is something wrong with the memory slot itself. I have seen a few posts that lead me to believe it is one of two things: 1. the memory slot itself is bad and I have to replace the logic board yadda yadda or 2. the memory slot was somehow disabled from successive upgrades of the operating system.
ECC: Disabled
BANK 0/DIMM0:
Size: 4 GB
Type: DDR3
Speed: 1067 MHz
Status: OK
Manufacturer: 0x0198
Part Number: 0x393930353432382D3030352E4130324C4620
Serial Number: 0x6108D8BB
BANK 1/DIMM0:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Manufacturer: Empty
Part Number: Empty
Serial Number: Empty
MacBook Pro, OS X Mavericks (10.9), Mid 2009
Posted on Nov 6, 2013 8:14 PM