Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!cmcl2!rutgers!cbmvax!daveh From: daveh@cbmvax.UUCP (Dave Haynie) Newsgroups: comp.sys.amiga Subject: Re: Screen changes to green during reboot Message-ID: <2125@cbmvax.UUCP> Date: Thu, 16-Jul-87 12:09:37 EDT Article-I.D.: cbmvax.2125 Posted: Thu Jul 16 12:09:37 1987 Date-Received: Wed, 22-Jul-87 02:20:38 EDT References: <8707150441.AA03209@cogsci.berkeley.edu> Organization: Commodore Technology, West Chester, PA Lines: 30 in article <8707150441.AA03209@cogsci.berkeley.edu>, bryce@COGSCI.BERKELEY.EDU (Bryce Nesbitt) says: > > In article <429@phoenix.PRINCETON.EDU> you write: >>In article <603@madvax.UUCP> davidlo@madvax.UUCP (David Lo) writes: >> >>> Lately, while warm booting my Amiga, I have noticed the screen >>> changes to a green color for a brief moment before the "insert workbench" >>> message. Does this means some parts is going to die ? > > No. Green is one of the random colors that can come up. Actually, green is meaningful in the right context. On initial powerup, the first meaningful color displayed is dark grey, which indicates the system has passed the "hardware test". The 68000 is running, and some hardware registers are seen. Next is the light grey screen, the "software test", where the system software is starting to come up. Finally, the "white" screen comes up indicating that the machine is just about ready to ask for a disk; everything has checked out OK. Failures come up as colors. Green indicates a CHIP RAM failure of some kind. Red indicates a ROM/WCS failure. Blue indicates a custom chip failure. And yellow indicates that a 68000 exception trap has occurred before the normal OS trap handler (the GURU code) has been installed. When a failure is detected, the OS will often retry, so you can see cycling from failure to test, at least for the right kind of failures. -- Dave Haynie Commodore-Amiga Usenet: {ihnp4|caip|rutgers}!cbmvax!daveh "The A2000 Guy" PLINK : D-DAVE H BIX : hazy "Catch a wave and you're sittin' on top of the world" -Beach Boys