roskill@cs.umass.edu (06/05/90)
Hi, I know I've talked about this subject before, but I want to expand my father's IIcx by adding 4 256K SIMMS. Is there anything special about the 256K SIMMS used in the IIcx? If they are nothing special, then I'm in the market for 4 256K SIMMS....I'll pay shipping and some amount for each SIMM. Make me an offer and get rid of those refrid magnets. Damian |----------------------------------------------------------------| |"Party For Your Right To Fight" | "Welcome to the Terrordome!"| | Damian Roskill | | | Roskill@cs.umass.edu | | |----------------------------------------------------------------|
dankg@volcano.Berkeley.EDU (Dan KoGai) (06/05/90)
In article <15137@dime.cs.umass.edu> roskill@cs.umass.edu writes: > >Hi, > >I know I've talked about this subject before, but I want to >expand my father's IIcx by adding 4 256K SIMMS. Is there >anything special about the 256K SIMMS used in the IIcx? > >If they are nothing special, then I'm in the market for 4 >256K SIMMS....I'll pay shipping and some amount for each >SIMM. Make me an offer and get rid of those refrid magnets. The only checkpoint for IIci or down is access speed. In your case, that's no problem as long as access speed is faster than 120ns. Here's the minimum access speed list for IIci and down Plus|SE 150ns II|IIx|IIcx 120ns IIci 80ns IIfx is special, for it uses special 64-pin simm to acceralate write speed. Hope it helps. ---------------- ____ __ __ + Dan The "Simmcity" Man ||__||__| + E-mail: dankg@ocf.berkeley.edu ____| ______ + Voice: +1 415-549-6111 | |__|__| + USnail: 1730 Laloma Berkeley, CA 94709 U.S.A |___ |__|__| + |____|____ + "What's the biggest U.S. export to Japan?" \_| | + "Bullshit. It makes the best fertilizer for their rice"
philip@Kermit.Stanford.EDU (Philip Machanick) (06/06/90)
In article <1990Jun5.162020.19019@agate.berkeley.edu>, dankg@volcano.Berkeley.EDU (Dan KoGai) writes: > In article <15137@dime.cs.umass.edu> roskill@cs.umass.edu writes: > > > >Hi, > > > >I know I've talked about this subject before, but I want to > >expand my father's IIcx by adding 4 256K SIMMS. Is there > >anything special about the 256K SIMMS used in the IIcx? > > > >If they are nothing special, then I'm in the market for 4 > >256K SIMMS....I'll pay shipping and some amount for each > >SIMM. Make me an offer and get rid of those refrid magnets. > > The only checkpoint for IIci or down is access speed. In your > case, that's no problem as long as access speed is faster than 120ns. > Here's the minimum access speed list for IIci and down > > Plus|SE 150ns > II|IIx|IIcx 120ns > IIci 80ns > > IIfx is special, for it uses special 64-pin simm to acceralate > write speed. Hope it helps. Yes - here's another question. The 1M version of the IIci is equipped with 256K SIMMs with fewer RAM chips (2 per SIMM, I think - i.e., 4-bit wide chips instead of 1-bit wide). Is there any problem using these IIci 256K SIMMs on other models? Philip Machanick philip@pescadero.stanford.edu
xmgb@pvi.UUCP (Mike Barton) (06/11/90)
You should have no problem installing a second sent of 256K SIMMs in your father's IIcx. Just insert them into Bank B. Also, there are lots of people sitting around with extra 256K SIMMs in thier desks, since the memory uprgrade paths (especially when expanding the memory of the Mac Plus) of the various Macintoshs results in extra 256K SIMMs. I've seen them offered at $25 for a complete set of four. So don't offer TOO much money. MGB