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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!mcsun!julienas!babbage!isis!gram!oueichek
- From: oueichek@gram (Ibaa Oueichek)
- Subject: Re: Which memory for Mac Plus?
- Message-ID: <C1793o.9zt@imag.fr>
- Sender: news@imag.fr (Administration des news)
- Nntp-Posting-Host: gram
- Organization: IMAG Institute, University of Grenoble, France
- X-Newsreader: Tin 1.1 PL5
- References: <1993Jan20.205235.17299@tc.cornell.edu>
- Date: Thu, 21 Jan 1993 10:28:36 GMT
- Lines: 25
-
- Bob Feldman (rfeldman@theory.TC.Cornell.EDU) wrote:
- : We have a Mac Plus which we'd like to upgrade to 1 MB SIMMS. We ordered
- : SIMMS by mail, but were unable to get them working, either with 100 ns
- : or 70 ns SIMMs. Should either of these work? Is there a switch that needs
- : to be changed in the Mac Plus when going from 1/4 MB to 1MB SIMMs?
- :
- : The 100 ns SIMMs caused the system not to boot. The 70 ns SIMMs caused it
- : to boot and hang. The vendor claims both sets of SIMMS tested OK when
- : we returned them.
- Did you cut the resistors r8 and r9 ?. One of them means "256 KB SIMMS ARE
- USED" so it should be cut. Both of them should be cut if you put 4 1MB SIMMS
- ( i don't remember the definition of the second one, but i'm absolutely sure
- you have to cut both of them, i've done that myself several times). The two
- resistors are on the upper left side relative to the SIMM sockets.
- Hope that helps.
- :
- : Bob Feldman
-
- --
- Sham(u) ya tha (s)seif(u) lam yaghib(i) | Ibaa Oueichek. oueichek@imag.imag.fr
- Ya jamal(al) majd(i) fi(l) kutub(i) | IMAG, INPG.
- Kablak(i) (t)tareekh(u) fi thulmaten | Grenoble.
- Baadak(i) staula ala (sh)shuhub(i) |
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