G'day Glen Collins, In a message on  , you said :




 LB>> lots of 4. You may get away with installing 4 X 256K SIMMS 
 LB>> to get an additional 1 MEG. Check your manual to see how 
 LB>> the SIMMS are installed, you may need to buy more. 

 GC> Are you sure that's right?

for a 486, absolutely.

 GC> Well my computer is a 486 dx/50.....
 GC> I don't really understand....

Your system works on a 32 bit wide bus

 GC> Cause I opened up my computer and looked where the simms 
 GC> are placed.... There was 8 slots, and 4 were filled.... 
 GC> Doesn't that mean I can just get one more of these simm 

A single 1 Meg Simm is only 9 bits wide.
You require 4 of these for the system to recognise them.

 GC> things, to make 5?


As I said you may be able to install 1 Meg using 256 K modules (4 of them).
you will have to move your existing 1 Meg Simms to the second bank and
place the 256K simms in the first bank.


                                        Laurie

--- Msgedsq 2.2e