shikascs@clutx.clarkson.edu (Glo) (04/21/91)
I have a Zenith-248 computer which is at 512k. There are no chip slots to increase the memory to 640k. Is there anyway I can expand it to 640k just by adding/soldering chips? Also, is there anyway I could increase the speed of the computer from 8 mhz to 12,16 or 20 Mhz? Will this have a dramatic effect on the wait state which is currently 0. The current RAM chip speed is 100 ns. Thanks in advance, -Chris Shikashio Addr: shikascs@clutx.clarkson.edu
rocco@nstar.rn.com (Rocco Calderone) (04/23/91)
shikascs@clutx.clarkson.edu (Glo) writes: > I have a Zenith-248 computer which is at 512k. There are no chip slots to > increase the memory to 640k. Is there anyway I can expand it to 640k > just by adding/soldering chips? > > Also, is there anyway I could increase the speed of the computer from > 8 mhz to 12,16 or 20 Mhz? Will this have a dramatic effect on the wait > state which is currently 0. The current RAM chip speed is 100 ns. > > Thanks in advance, > > -Chris Shikashio > > Addr: shikascs@clutx.clarkson.edu Zenith sells additional memory boards to allow to fill to 640K -- Rocco Calderone NSTAR conferencing site 219-289-0287 internet: rocco@nstar.rn.com 1300 newsgroups - 8 inbound lines uucp: ..!uunet!nstar.rn.com!rocco 99 file areas - 4300 megabytes --- backbone news & mail feeds available - contact larry@nstar.rn.com ---
mandell@mozart.helios.nd.edu (Dan Mandell) (04/23/91)
I'd strongly recommend you look into the Boca Ram Board (PC Connection carries them) for the Zenith 248's that max out with 512K on system board. We used the Boca Ram Board to give us 2.5 Mb that can be partitioned into EMS, Extended and can backfill to bring the system Ram up to 640K. We've used them with no difficulties. The Zenith memory board to top off your memory at 640K is expensive and relatively useless. Dan