Powerbook memory is wiggin'

djbeta · #1 January 14th, 2005, 11:40 PM

I have a Powerbook 1.5 Ghz.. first symptom was only 512 of my 1GB reporting as memory. I tried swapping the ram chip, seemed to be the ram chip, then removed the bad chip, and booted to three beeps..

uh oh... the thought i put in the wrong chip.. inserted other chip..

booted fine..

then booted again, and three beeps..

uh oh..

so I'm pretty sure it's not one of the chips..

does this sound like a logic board issue ???

bobw · #2 January 15th, 2005, 09:43 AM

You may have two bad chips. Three beeps is an indication of bad memory. Could also be the board.

DeltaMac · #3 January 15th, 2005, 09:50 AM

Likely a failing logic board, take it in for service.

First, I would test this 4 times, using just one chip at a time
1-RAM in one slot
2-same RAM in second slot
3-OTHER RAM in one slot
4-other RAM in second slot

Do this 4-time test, which might just be one bad RAM chip. (easier for you) My guess is you will find that the same slot fails every time, with either RAM chip, which means replacing the logic board.