pardue@gn.ecn.purdue.edu (Jon Pardue) (06/21/91)
Greetings, netters! From "Macintosh Repair and Upgrade Secrets," Larry Pina, 1990, page 205: [words in *asterisks* were italicized in the original] "PC SIMMs are the same physical length as Macintosh SIMMs but they contain nine RAM chips instead of eight. These work fine in PC's *and* Macs. Eight- chip Mac SIMMs *only* work in Macs. If you have access to nine-chip SIMMs, or if you might need to use them in a PC someday, don't hesitate to try them. Assuming they're first quality nine-chip SIMMs, they'll give equally good service, in either machine." Is this true? I'm not about to mess with my SE/30's internals to test it, but it would sure be nice to hear that I can upgrade using some of these 1 meg PC SIMMs floating around here ... - Jon -- ---------------------------------------------------------------------------- Jon Pardue "The plural of 'spouse' is 'SPICE'." pardue@gn.ecn.purdue.edu - me "Old musicians never die, they just go from bar to bar." - Anonymous
johnston@oscar.ccm.udel.edu (06/21/91)
In article <1991Jun20.191113.8626@gn.ecn.purdue.edu>, pardue@gn.ecn.purdue.edu (Jon Pardue) writes... >From "Macintosh Repair and Upgrade Secrets," Larry Pina, 1990, page 205: >"PC SIMMs are the same physical length as Macintosh SIMMs but they contain > nine RAM chips instead of eight. These work fine in PC's *and* Macs. Eight- >Is this true? I'm not about to mess with my SE/30's internals to test it, >but it would sure be nice to hear that I can upgrade using some of these 1 meg >PC SIMMs floating around here ... This is one instance in which PC hardware costs the same or more than Mac stuff. There's no real point in hunting for parity ram for a Mac unless you want to upgrade a IIfx. The market for used RAM chips will probably continue to be good among Mac users; I wouldn't worry about wasting $$ by investing in 8-chip SIMMS. Best investment you can make for a Mac .... -- Bill (johnston@minnie.me.udel.edu)
cmclark@predator.rs.itd.umich.edu (Charles Clark) (06/22/91)
pardue@gn.ecn.purdue.edu (Jon Pardue) writes: > >From "Macintosh Repair and Upgrade Secrets," Larry Pina, 1990, page 205: > >[words in *asterisks* were italicized in the original] > >"PC SIMMs are the same physical length as Macintosh SIMMs but they contain > nine RAM chips instead of eight. These work fine in PC's *and* Macs. Eight- > chip Mac SIMMs *only* work in Macs. If you have access to nine-chip SIMMs, > or if you might need to use them in a PC someday, don't hesitate to try them. > Assuming they're first quality nine-chip SIMMs, they'll give equally good > service, in either machine." > >Is this true? I'm not about to mess with my SE/30's internals to test it, Yes this is true. I've done it. (but why should you trust me when you don't trust larry, and you must've paid the big bucks for his book because you thought he knew what he was talking about ...) cmc
nagle@well.sf.ca.us (John Nagle) (06/24/91)
pardue@gn.ecn.purdue.edu (Jon Pardue) writes: >Greetings, netters! >From "Macintosh Repair and Upgrade Secrets," Larry Pina, 1990, page 205: >[words in *asterisks* were italicized in the original] >"PC SIMMs are the same physical length as Macintosh SIMMs but they contain > nine RAM chips instead of eight. These work fine in PC's *and* Macs. Eight- > chip Mac SIMMs *only* work in Macs. If you have access to nine-chip SIMMs, > or if you might need to use them in a PC someday, don't hesitate to try them. You might even order a Mac with parity and find out when your memory is flaky instead of just thinking "it's a glitch". Macs with parity are available, although Apple doesn't push them. The Government insists on them for most DoD buys. Now that the price differential between 8 and 9 chip SIMMS is small (or even negative), ordering a Mac with parity makes more sense than ever. For those who have parity-equipped Macs, what kind of error rates do you see? John Nagle