Path: utzoo!attcan!uunet!lll-winken!ubvax!vsi1!apple!mjohnson From: mjohnson@Apple.COM (Mark Johnson) Newsgroups: comp.sys.mac Subject: Re: memory expansion on newer SEs Message-ID: <24587@apple.Apple.COM> Date: 23 Jan 89 16:20:46 GMT References: Organization: Apple Computer Inc, Cupertino, CA Lines: 35 In article marsella@athos.rutgers.edu (Stacy Marsella) writes: > > > Help. > >I was just about to upgrade another SE from 1 meg to 2.5 meg using >some 1 meg simms. To my surprise Apple has revised the motherboard. >There are no longer two resistor locations labelled "256k" and "one >row". Now there is a 3 pin header with a shorting block. The two >locations are labelled "1 meg" and "2/4 meg". Assuming it is possible, >how do I position the shorting block to allow a 2.5 meg configuration? >(that is 1 meg simms in the "first" row and 256ks in the second row.) > A revised version of the Tech Note (#176) will be out in February to include the new SE motherboard as well as the IIx and SE/30 memory configurations. Until that time, here are the jumper settings for memory on the newer SE motherboards with the jumpers... 512K Jumper on 2/4MB 1 MB Jumper on 1MB 2 MB Jumper on 2/4MB 2.5 MB Jumper off 4 MB Jumper off We would have had this info out sooner, but we just found out ourselves a very short time ago. Mark B. Johnson AppleLink: m.johnson Developer Technical Support domain: mjohnson@Apple.com Apple Computer, Inc. UUCP: {amdahl,decwrl,sun,unisoft}!apple!mjohnson "You gave your life to become the person you are right now. Was it worth it?" - Richard Bach, _One_