/FHQ5:  How can I upgrade my 80286 for best DESQview performance?/FB



A 80286 can be upgraded with LIM EMS 4.0 expanded memory, a memory
management chip, a plug-in 386 adapter, or a new 386 motherboard.  The
cost of all these ``upgrades'' is about the same. All of them have some
negatives as well.



/FL(1)/FB If you are unsure how much of your 286 conventional memory can
disabled, getting LIM EMS 4.0 memory may not help you. For the record
the listed 286 motherboards can be set to the minimum conventional
memory as follows:

/ML4//FLAST Premium 286/FB 0K

/FLIBM AT (6 Mhz)/FB 256K

/FLCOMPAQ 286/FB 256K



/ML-4/Most AT clones have a minimum of 512K (eighteen 256Kx1 DRAMs).  The
motherboard can only be disabled to 256K or lower if it supports 64K
DRAMs, or if the system setup allows you to specify a value less than
the actual amount of memory installed.



If you have information on the minimum conventional memory of any other
286 motherboard, please forward it to the editor /JB(see the Introduction)/CONTENTS/.



/FL(2)/FB If you get a memory management chip, an All-Charge Card or a SOTA
POP, you will still not get the memory protection available with the
80386 /JB(see Q4)/q4.txt/.



/FL(3)/FB If you get a 386 Adapter to replace the 286 CPU chip, there has been
``some reported'' compatibility problems.  Also, it will not run as fast
the corresponding 386 motherboard of the same clock speed.



/FL(4)/FB If you get a new 386 (or 386SX) motherboard, there is some hassle to
get it installed and working but probably no more than with the 386
Adapter kits.