Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!alchemy!sethcohn Newsgroups: comp.sys.mac.hardware Subject: Re: why larger SIMMS in bank B on IIci ? From: sethcohn@alchemy.tcnet.ithaca.ny.us (seth cohn) Message-ID: References: <4140@ac.dal.ca> Date: Sun, 24 Mar 91 19:28:50 EST Organization: Alchemy International, Ithaca, N.Y. ireland@ac.dal.ca writes: > Hi. I just read in the April MacWorld that one ought to put > the larger capacity SIMMS in bank B on a IIci for maximum > performance. I have a 5 meg IIci and haven't yet checked to > see if I'm following this rule. Could someone explain the > reasoning behind this. How much difference in speed is one > likely to observe? Thanks, > > Keith Conover > ireland@ac.dal.ca Apple has tested this fully, and as I understand it: the Ci, due to the way it updated things, goes to bank A for certain refresh states, but if you have the BIG (ie 1 meg) simms there, then it will function "normally", whereas, with the SMALL simms (ie 256k) simms there, the BIG simms in bank B will not be slowed down. Apple claims up to 30% increase in speed. "CLAIMS" is the operative word here. Depends on what you're doing. I'd say that the minimal work involved in swapping banks is worth it, but don't feel like it's SUPER-vital, just a bit more speed for some things. Seth Seth Cohn, Service Tech. 607-273-2815 voice 607-272-7002 BBS All things posted are opinions by me, of me, for me, or to me. And another thing..........I'm not sure you're real.