Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!mcsun!inria!chorus!opera!mir From: mir@opera.chorus.fr (Adam Mirowski) Newsgroups: comp.sys.ibm.pc.misc Subject: Re: Help needed to set up RAM Message-ID: <7011@chorus.fr> Date: 3 Dec 90 17:29:51 GMT References: <1990Nov16.041239.27258@hellgate.utah.edu> Sender: mir@chorus.fr Reply-To: mir@opera.chorus.fr (Adam Mirowski) Organization: Chorus systemes, Paris, France Lines: 37 In article , krab@iesd.auc.dk (Kresten Krab Thorup) writes: %% %% I suppose your mashine has built in expanded-memory-support. This %% means, that that the motherboard is HARDWARE prepared for using RAM %% above 640K for expanded memory. %% %% Your motherboard, I guess, is made so - that you by dip-swiches %% are able to choose if the RAM above 640K is to be used for %% expanded or extended memory. By using an EMS-driver - like EMM.SYS - %% you can use the expanded memory for EMS! %% %% The conclusion must be - I suppose - that you cant have both.. %% %% BUT - I know that drivers like `extended' -> `EMS' are available in %% public domain... But dont use a such - I only trust programs that have %% beed used by others before! %% %% Anyway: EMS is used much more often than extended memory - And Windows can %% use it too - But only for storing it's graphics like the wall paper. %% %% %% I hope you couldt use this %% %% Kresten, University of Aalborg, Denmark On 286 machines I have seen (Suntac chipset), you CAN partition the extra memory between EMS and Extended, but the chunks are usually quite coarse, 512 Ko or so. You cannot have 64 extended + 320 expanded with only 384 Ko. To partition, you need to change dip switches on the motherboard. It cannot be done be software, at least with the Suntac 286 chipset. Usually there is a section in the machine manual which indicates the right switches. The right positions were also repeated on the main board drawing, at the manual end. -- Adam Mirowski, mir@chorus.fr (FRANCE), tel. +33 (1) 30-64-82-00 or 74 Chorus systemes, 6, av.Gustave Eiffel, 78182 Saint-Quentin-en-Yvelines CEDEX