spector@vx2.GBA.NYU.EDU (David HM Spector) (04/13/89)
I just got my LaserWriter IIntx, and I noticed that the SIMM slots are
not exactly "standard"... was this by design? I have an extra 8MB
"sitting around" and I was hoping to put them into my new toy and was
really bummed to find that Apple is using a different SIMM style...
Has anyone else upgraded the memory of an ntx? Where can I find these SIMMS?
_DHMS
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David HM Spector New York University
Unix Manager/Senior Systems Programmer Stern School of Business
ARPAnet: SPECTOR@GBA.NYU.EDU Academic Computing Center
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"Capital punishment is our society's recognition of the sanctity of human life"
- Senator Orrin Hatchu545731798ea@deneb.ucdavis.edu (Greg DeMichillie) (04/14/89)
In article <439@vx2.GBA.NYU.EDU> spector@vx2.UUCP (David HM Spector) writes: > >I just got my LaserWriter IIntx, and I noticed that the SIMM slots are >not exactly "standard"... was this by design? I have an extra 8MB >"sitting around" and I was hoping to put them into my new toy and was >really bummed to find that Apple is using a different SIMM style... > >Has anyone else upgraded the memory of an ntx? Where can I find these SIMMS? Yes indeed, the SIMMS for the LaserWriter are NOT the same as the SIMMS for regular Mac memory. Why? I don't have the faintest idea. Apple does sell, however, 1 and 4MB expansion kits for the NTX. The NTX has 3 banks of SIMMS, 4 SIMMS per bank. Each bank can be populated with 256K (aka 1MB Expansion Kit) or 1MB( aka 4MB Expansion Kit) SIMMS. That means the possible configurations are: Total Kits Used ----- ----------- 1MB (1MB, 0, 0) 2MB (1MB, 1MB, 0) {Standard Configuration} 3MB (1MB, 1MB, 1MB) 6MB (4MB, 1MB, 1MB) 9MB (4MB, 4MB, 1MB) 12MB (4MB, 4MB, 4MB) Hope that helps. ----- Greg DeMichillie Apple Student Rep - UC Davis lgdemichillie@ucdavis.edu AppleLink: ST0178 Disclaimer: If you've seen one disclaimer, you've seen them all. >David HM Spector New York University >Unix Manager/Senior Systems Programmer Stern School of Business >ARPAnet: SPECTOR@GBA.NYU.EDU Academic Computing Center >USEnet:...!{uunet,rocky,harvard}!cmcl2!spector 90 Trinity Place, Rm C-4 >HamRadio: N2BCA (44.68.0.50) MCIMail: DSpector New York, New York 10006 >AppleLink: DHMSpector CompuServe: 71260,1410 (212) 285-6080
kaufman@polya.Stanford.EDU (Marc T. Kaufman) (04/14/89)
In article <3953@ucdavis.ucdavis.edu> lgdemichillie@ucdavis.edu (Greg DeMichillie) writes: >Yes indeed, the SIMMS for the LaserWriter are NOT the same as the SIMMS for >regular Mac memory. Why? I don't have the faintest idea. The Laserwriter SIMMs have a separate enable line for each bit, so that an 'OR' to memory operation can be performed by writing 1 bits, without the need to read the location first. It's faster that way. Marc Kaufman (kaufman@polya.stanford.edu)