GLOD as noted by the other poster. You might check out Sidney Ho's article on GLOD. http://webobjects.uwaterloo.ca/mac2400/ Hardware:Repair:GLOD >Hi >I have an older powerbook that has is having some trouble. I am >trying to repair a PowerBook 2400 but having some difficulty. The >powerbook alternates between a constant green light and a small >click from the speakers, when any reset is done. I have left it >overnight and also removed the PRAM battery for several hours >without success. Has anyone managed to solve this problem? > >Thanks, >writeeben at hotmail.com Ralph Mawyer, Jr. San Antonio, Texas Associate Editor mac2400 ... http://www.sineware.com/mac2400 Your PowerBook 2400 Reference Site "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." Benjamin Franklin, 1759.