robin@csuchico.uucp (Robin Goldstone) (03/31/89)
Is it true that I cannot use my Mac SE memory (100ns 1MB simms) in an SE/30? I thought the same memory would work but someone has told me otherwise... robin@csuchico.edu
jdevoto@Apple.COM (Jeanne A. E. DeVoto) (04/01/89)
robin@csuchico.uucp (Robin Goldstone) writes: >Is it true that I cannot use my Mac SE memory (100ns 1MB simms) in >an SE/30? I thought the same memory would work but someone has >told me otherwise... The SE/030 requires SIMMs that are 120ns or faster -- in other words, 100ns parts should work fine. The confusion may have come about because an SE can take slower chips (down to 150ns), and the slow chips can't be transferred to an SE/030. jeanne a. e. devoto jdevoto@apple.com
David_Greg_Herlihy@cup.portal.com (04/02/89)
Remember though that with the SE/30 you need to add SiMMs four at a time, so if you have only two 1MB chips, you'll need two more. Greg Herlihy
borton@uva.UUCP (Chris Borton) (04/04/89)
In article <28180@apple.Apple.COM> jdevoto@Apple.COM (Jeanne A. E. DeVoto) writes: >robin@csuchico.uucp (Robin Goldstone) writes: >>Is it true that I cannot use my Mac SE memory (100ns 1MB simms) in >>an SE/30? I thought the same memory would work but someone has >>told me otherwise... > >The SE/030 requires SIMMs that are 120ns or faster -- in other words, >100ns parts should work fine. > >The confusion may have come about because an SE can take slower chips >(down to 150ns), and the slow chips can't be transferred to an SE/030. Ah, but are they low-profile or not? In the SE/030 ONE bank (up to 4) of SIMMs *MUST* be low-profile; the other bank may be high profile. Thus, there's another gotcha. The memory that comes with the SE/030 is low-profile; thus, if you buy a 1M SE/030 and buy 4M of high-profile RAM somewhere else, you're OK, but as soon as you look at replacing the Apple SIMM with someone else's SIMM you'd better look carefully first... There was a note on AppleLink to this effect when the SE/030 came out. -cbb -- Chris Borton borton%uva@mcvax.{nl,bitnet,uucp} Rotary Scholar & Network Administrator, University of Amsterdam CS