NEC CDR-25 MSCDEX 35K!!
29-Dec-92 00:05:16
Sb: #35198-NEC CDR-25 MSCDEX 35K!!
Fm: kevin kelly 76650,351
To: Michael F. Pitsch 70671,2234
Well… sorta. The problem with MSCDEX is that it usually needs its
buffers; depending on the drive and manufacturer's recommendation, that may
be a substantial amount — often 15-30K or so. And other drivers
associated with the drive, especially the audio drivers may require lots
more (but that's a different, similar story). MSCDEX can, and probably
should, be loaded high if there are UMB's available. MSCDEX requires MORE
than its 15.5K+/- when it first loads (it reduces in size once it's
"settled-in"); I've heard reports of 65K or more, PLUS buffers if they're
not allocated to EMS, expanded, memory. With that kind of overhead on a
typically crowded system, it's possible/likely that none of it will load
high, leaving you with an acute case of RAM-cram in conventional memory.
Some of the Media Vision audio drivers, a pretty popular choice, require
more space and only accept EMS memory. Ergo, my general recommendation to
create expanded memory for these and similar products (WordPerfect, lots of
games, Lotus, etc. can all use expanded memory and may/may not suppport
XMS).
If you have a minimal system, few memory-resident drivers and apps
(counting DOS, I have 18 drivers and apps resident in conventional and
UMB), and few/no apps that require a large amount of conventional memory to
load (I have some that need about 550K free conventional memory), then you
may be an exception to my generalization. Hey, if it works, go for it!
In my current configuration, I'm using about 1Mb of expanded memory for
these buffers and a few, small other things! The 64K for a page frame
makes it all possible for me. And WordPerfect, which I live in, runs
better & faster too (needs a special switch to activate)!
Hope this helps. Lemme know if it doesn't work for you. Memory's cheap!