6422 Views 3 Replies Latest reply: Aug 2, 2008 12:50 PM by eww
Welcome to the Apple discussions.
Return your Powerbook to the Apple store. 3 beeps means there are no good banks of memory found. The blinking sleep LED blinking is part of the boot process, and it blinks the error code the beeps also indicated. FYI, the beeps are:
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
5 beeps = processor is not usable
hey, i have a 15" powerbook with a similar problem. It had 2 - 512mb sticks but there is one strip I am sure is bad because I checked both sticks seperately in another 12" powerbook i own. I took the 512 stick out of my 12" that I know obviously works and put it in the 15" and I still get a beep saying "no valid ram". (1 beep) Please help, I love this laptop
Hi, abeitzel. The PC2100 RAM from your 867MHz 12-inch Powerbook is incompatible with the 1.5GHz 15" Powerbook, which requires PC2700 RAM modules.
RAM with the correct spec for the 15" may also work in the 12", but the opposite swap won't go.
Note that this forum is devoted to 17" Powerbook models, rather than either of the ones listed in your system info.
Message was edited by: eww