gaynor@hpuxa.ircc.ohio-state.edu (Jim Gaynor) (10/18/90)
In article <1990Oct17.181025.28801@ecst.csuchico.edu> robin@cscihp.UUCP (Robin Goldstone) writes: >I'm curious about the new RAM configurations, specifically in the IIsi. >I heard that there is 1Mb RAM "on board", so this machine must then have >four slots for SIMMS? If so, then SIMMS must be installed in pairs (not >counting the first 1MB)? > >If this is true, then you could have: 2MB, 3MB, 3.5 MB, 5MB, 9MB, 9.5MB, >11MB, 17MB using combinations of 256K, 1MB and 4MB SIMMS! Did I get >all the permutations? If Mark is right about 512K and 2MB SIMMS, then >you could have -- oh forget it! The Mac IIsi has one bank of 4 SIMM slots, not 2 banks of 2. Thus, you have to fill all four slots with the same kind of memory. With the one meg of on-board RAM you get: 256k SIMMs: 2 Meg RAM 1meg SIMMs: 5 Meg RAM 4meg SIMMs: 17 Meg RAM At a meeting with some Apple folk, we were told that 512k SIMMs and 2 meg SIMMs are going to be made - and that Technology Works was already manufacturing the 2 meg SIMMs. However, this was mentioned in the context of discussing the Mac LC, and not the IIsi - I am uncertain whether or not these two new SIMM types are LC-only (like the IIfx's screwy SIMMs). Please note crosspost to c.s.m.hardware, and followup accordingly. -- +-----------------------------------------------------------------------------+ | Jim Gaynor - The Ohio State Univ. - IRCC - Facilities Mgmt. - OCES <whew!> | | Email [gaynor@hpuxa.ircc.ohio-state.edu], [gaynor@agvax2.ag.ohio-state.edu] | |_ "Don't tell me truth hurts, little girl; because it hurts like hell..." _|
carsup@extro.ucc.su.OZ.AU (Fisher Library support) (10/22/90)
In article <5818@nisca.ircc.ohio-state.edu> gaynor@hpuxa.ircc.ohio-state.edu (Jim Gaynor) writes: >In article <1990Oct17.181025.28801@ecst.csuchico.edu> robin@cscihp.UUCP (Robin Goldstone) writes: >>I'm curious about the new RAM configurations, specifically in the IIsi. >>I heard that there is 1Mb RAM "on board", so this machine must then have >>four slots for SIMMS? If so, then SIMMS must be installed in pairs (not >>counting the first 1MB)? >> >>If this is true, then you could have: 2MB, 3MB, 3.5 MB, 5MB, 9MB, 9.5MB, >>11MB, 17MB using combinations of 256K, 1MB and 4MB SIMMS! Did I get >>all the permutations? If Mark is right about 512K and 2MB SIMMS, then >>you could have -- oh forget it! > > The Mac IIsi has one bank of 4 SIMM slots, not 2 banks of 2. >Thus, you have to fill all four slots with the same kind of memory. >With the one meg of on-board RAM you get: > >256k SIMMs: 2 Meg RAM >1meg SIMMs: 5 Meg RAM >4meg SIMMs: 17 Meg RAM [deleted some other stuff] The 512K and 2 meg SIMMs will work with the IIsi and ci. I'm not sure if it will work with the LC tho'. so for the IIsi memory configuration, don't forget the 1 meg already on board: empty slots: 1 meg (really useful :) 4 x 256K SIMMs: 2 meg 4 x 512K SIMMs: 3 meg 4 x 1meg SIMMs: 5 meg 4 x 2meg SIMMs: 9 meg 4 x 4meg SIMMs: 17 meg So that's (not counting empty slots) 2,3,5,9 and 17. With System 7.0, 2 megs will not be sufficient if using on board RAM for video. **My employers don't understand me, so I guess I'm on my own when I speak out** Norton Chia | I *think* my address is Micro Support | carsup@extro.ucc.su.OZ.AU *******************************************************************************