fineberg@wums.wustl.edu (05/07/90)
Hello everyone, In catching up with this exciting couple of weeks postings, I've come up with a question which I think hasn't been asked yet. ECS supports up to 2 Meg of chip ram. Will I be able to say, piggy back ram on my 2000 to allow my 2000 to have 2 Meg Chip Ram when I upgrade to ECS? Just exploring every opportunity... Charlie BITNET: FINEBERG@WUMS internet: fineberg@wums2.wustl.edu
grr@cbmvax.commodore.com (George Robbins) (05/08/90)
In article <3569.26446b2a@wums.wustl.edu> fineberg@wums.wustl.edu writes: > Hello everyone, > In catching up with this exciting couple of weeks postings, I've come up > with a question which I think hasn't been asked yet. ECS supports up to 2 > Meg of chip ram. Will I be able to say, piggy back ram on my 2000 to allow > my 2000 to have 2 Meg Chip Ram when I upgrade to ECS? Just exploring every > opportunity... The A2000 answer is "not without a considerable amount of hacking" - The Agnus 2M-byte pinout lends itself towards 16 1Mx1 DRAM or 4 1Mx4 chips. Making it work with smaller DRAM is a pain. -- George Robbins - now working for, uucp: {uunet|pyramid|rutgers}!cbmvax!grr but no way officially representing: domain: grr@cbmvax.commodore.com Commodore, Engineering Department phone: 215-431-9349 (only by moonlite)
phupp@warwick.ac.uk (S Millington) (05/08/90)
In article <11411@cbmvax.commodore.com> grr@cbmvax (George Robbins) writes: > >The A2000 answer is "not without a considerable amount of hacking" - The Agnus >2M-byte pinout lends itself towards 16 1Mx1 DRAM or 4 1Mx4 chips. Making it >work with smaller DRAM is a pain. Is it then safe to assume, probably not, that revision 6a boards have been modified during the redesign to make thie easier? Or does the fact that they use 256x4 chips say it all about CBM's foresight? ************************************************************************* * Stuart Millington * "A Mind Is A Terrible Thing, Remember * * * That." - David Bryan, Bon Jovi * * JANET:phupp@uk.ac.warwick.cu ***************************************** * ? :phupp%warwick.ac.uk@nsfnet-relay.ac.uk * *************************************************************************