This one time, at band camp, Jeff Walther said: > In the SE/30 the larger or equal memory must be installed in Bank A, > which is the four SIMM slots closer to the ROM socket. Perhaps you only > installed the 8 MB SIMMs in bank B when you were installing them alone?
i tried them in both A and B, both with and without my 4MB simms. the only time they were ever recognized was in B (with the 4x4MB in A), and then only as 4MB simms. actually, i discovered that i had 4 16MB simms lying around. so, with my original 4 4MB simms, i have 80MB. plenty. i won't bother with the 8MB simms now... > The 8MB SIMMs are seen as 4MB because of the way that RAM is addressed. > I don't know your level of knowledge so forgive me if I explain the > obvious. i did know bit, but thank you for the detailed explanation, it's very clear to me now. love to learn new things. your suspicion that the SE/30 doesn't support 11x12 or 12x11 addressing explains why the 8MB simms are seen as 4MB, but it doesn't explain why they don't work on their own in bank A. are you speaking from knowledge of the SE/30, or general knowledge? other interesting bit, it doesn't matter whether or not i have the 16MB simms in bank A with the 4MB in bank B, or vice versa. the machine still sees them all OK. that's contrary to the rule that the largest simms should be in A. i note also that when using 256KB simms with 4MB simms, the 256KB should be in bank A. all of these exceptions to the rules really makes me want to get my hands on a tech manual for the SE/30... jj -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
