gaynor@hpuxa.ircc.ohio-state.edu (Jim Gaynor) (10/17/90)
I got to poke around a IIsi's motherboard today - it's a nice, compact design, with a number of VLSI chips. I'd been wondering why the IIsi's specs said that the IIsi could go up to 17 megs of RAM - 17's a prime number, I thunk. What's going on? Seems that the IIsi has 4 SIMM slots, and 1 meg of -surface mounted- RAM on the motherboard. A-ha! That explains it! (4 x 4meg) + 1meg = 17 meg. Also explains the 7 meg RAM limit of the LC: 2 SIMM slots plus 1 meg of surface RAM. But what I found to be one of the nicest improvements on the board were the SIMM slots themselves. Instead of using the breakable plastic brackets to keep the SIMMs slotted, the brackets are metal, and very obviously -meant- to bend rather than break. Aaahhhh... -- +-----------------------------------------------------------------------------+ | 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..." _|
russotto@eng.umd.edu (Matthew T. Russotto) (10/17/90)
In article <5749@nisca.ircc.ohio-state.edu> gaynor@hpuxa.ircc.ohio-state.edu (Jim Gaynor) writes: > But what I found to be one of the nicest improvements on the board >were the SIMM slots themselves. Instead of using the breakable plastic >brackets to keep the SIMMs slotted, the brackets are metal, and very >obviously -meant- to bend rather than break. Aaahhhh... Guess Apple gave up after trying no fewer than three different types of plastic SIMM slots... There is the original black kind, a very similiar white kind that requires less force to remove, and another white kind with an extra piece of plastic on either side (don't know what it's for) -- Matthew T. Russotto russotto@eng.umd.edu russotto@wam.umd.edu .sig under construction, like the rest of this campus.