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From: stew@endor.harvard.edu (Stew Rubenstein)
Newsgroups: comp.sys.mac
Subject: Re: Unhappy mac and 0F00D code
Message-ID: <3025@husc6.UUCP>
Date: Wed, 21-Oct-87 01:34:48 EDT
Article-I.D.: husc6.3025
Posted: Wed Oct 21 01:34:48 1987
Date-Received: Fri, 23-Oct-87 01:34:05 EDT
References: <8747@shemp.UCLA.EDU>
Sender: news@husc6.UUCP
Reply-To: stew@endor.UUCP (Stew Rubenstein)
Organization: Aiken Computation Lab Harvard, Cambridge, MA
Lines: 17

In article <8747@shemp.UCLA.EDU> lui@CS.UCLA.EDU (Stephen Lui) writes:
>Occasionally when I power up my Mac, it displays an unhappy face and the
>code 0F00D. Does this mean that a memory chip is bad? How hard is it to 
>change a memory chip?

I think that code indicates that your programmer's switch is stuck.
Try removing it.

On a Plus, SE, or II, it's pretty easy to change a memory chip.  You
open the Mac, pop out a SIMM, and pop in a new one.  On older machines
it's a motherboard swap (unless you're into desoldering chips from
multi-layer printed circuit boards).

Stew Rubenstein
Cambridge Scientific Computing, Inc.
UUCPnet:    seismo!harvard!rubenstein            CompuServe: 76525,421
Internet:   rubenstein@harvard.harvard.edu       MCIMail:    CSC