i am furious! i tried to put a 128 ram card in my albook and it didn't work. when i took it back out, i left the 256 card that was already in the computer in the bottom slot. the computer booted and then froze midway. after that it was 3 beeps and flashing the sleep light. that kept going until i put the 256 card in the top slot. excuse me being vulgar, but what the fuck did i do to it?
You may have the dreaded lower memory slot failure. Heat will cause a problem with the lower memory slot connection and the slot will fail. Top slot should still work...