Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!ukc!educ-isis!tejtemw From: tejtemw@isis.educ.lon.ac.uk (EARL WILLIAMS) Newsgroups: comp.sys.mac Subject: Re: Simm installation Message-ID: <1989Dec11.112101.213@isis.educ.lon.ac.uk> Date: 11 Dec 89 11:21:01 GMT References: <1989Dec6.215849.16064@cunixf.cc.columbia.edu> Reply-To: tejtemw@isis.educ.lon.ac.uk (EARL WILLIAMS) Organization: Institute of Education University of London Lines: 22 In article <1989Dec6.215849.16064@cunixf.cc.columbia.edu> reyes@cunixf.cc.columbia.edu (Alex Reyes) writes: > >I recently received four 1 meg simms from the chip merchants for my IICX. >I figured that I would leave the four original 256k simms in bank A and >install the four new 1 meg simms in bank B. When I booted the system it >would indicate only 2 megs total ram. I then reinstalled the four 1 meg >simms in bank A and the 256k simms in bank B. When I booted the system >again I got the correct configuration of 5 megs total ram. Was it really >necessary to install the 1 meg simms in bank A and the smaller 256 in >bank B or was it just an odd coincidence? Installing SIMMs is not just a matter of snapping them in; you have to attach/detach the correct resistors or set the jumpers correctly. This may have caused the variation in recognized RAM you got. If you post your hardware configuration (i.e. what Mac you have), someone can probably tell you which resistor/jumper setting to use. -- Earl M. Williams ?8^) "No matter where you go, there you are." Inst. of Education, U. of London -Buckaroo Banzai JANET: tejtemw@isis.educ.lon.ac.uk "When in doubt, lay it out." BITNET: tejtemw%@ukacrl.bitnet -Captain Ultimate [Frisbee]