I upgraded my ram as was specified online, 1066Hz, it worked. But then, if my computer reads 16 gigs of ram, when I close my lid, it won't wake up anymore. I force shutdown with the power button, reboot, and then the right memory slot, on about this mac, shows up empty, so I have 8 gigs of ram and it works fine. A few reboots later, or who knows when, the the second slot of ram is back online, and the next time I close my lid, it won't wake up again and I have to go through that process again.
Initially, I thought maybe one of the ram cards was bad, so I swapped them. The same thing happened. The right slot on about this mac went empty after I closed the lid and it wouldn't wake up.
Any ideas why this might be happening or if it is at all repairable? I haven't seen other people experience this issue.