Mac OS 9 Lives

Mac OS 9 Discussion => Hardware => Topic started by: supernova777 on January 25, 2014, 11:11:57 AM

Title: Mac startup POST error codes
Post by: supernova777 on January 25, 2014, 11:11:57 AM

1 beep = No RAM installed/detected

2 beeps = Incompatible RAM type installed (for example, EDO)

3 beeps = No RAM banks passed memory testing

4 beeps = Bad checksum for the remainder of the boot ROM

5 beeps = Bad checksum for the ROM boot block

source:http://www.welovemacs.com/whdoallthbme.html