THALL@UALTAVM.BITNET (Tom Hall) (06/08/89)
Earlier I posted a request for help concerning locating an EMS/LIM 4.0 driver that would enable DoubleDOS 5.0 to use all available memory in my PS/2 Model 60. After exhausting all local sources of information available to me, including IBM, I finally, in desperation, telephoned SoftLogic, the company that markets DoubleDOS. I was told that the only way DDOS will operate on expanded memory is if there is exactly 256K on the motherboard, with all the rest on an expansion card. A tech friend of mine informs me that this is not by any means a standard hardware configuration. Ergo, I have given up my quest, and must content myself with two partitions sharing 640K of memory <sigh>..... ---------------------------------------------------------------------- Tom Hall FidoNet: 1:342/6 Edmonton, Alberta BitNet : THALL@UALTAVM.BITNET ----------------------------------------------------------------------
davidr@hplsla.HP.COM (David M. Reed) (06/13/89)
I run DESQview on my system, and support MSWindows on other systems. Both of these programs specify in their documentation that in order to fully utilize expanded memory that system memory should be disabled as low as possible (down to 256K on AT-type systems) and then backfilled to 640K on the expanded memory card. There is, at least with DESQview, a dramatic difference in performance when installed in this manner. I do regret the loss of use of the extra 384K of memory soldered onto the motherboard. And it is also sad to lose 384K of expanded memory to fill in what already exists. But it is worth it to me, so I live with it. It was very easy to disable the extra motherboard memory by simply moving a single jumper (as should be detailed in your system's user manual).