🚀 go-pugleaf

On 9 Sep 1996 20:57:44 GMT, raj@goliath.Stanford.EDU (Rajesh K. Singh)
wrote:

>About 2 years ago I purchased a 486DX2 66 MHz system (8MB RAM, 400 MB hard
>disk, etc.) from Midwest Micro for home use. By now, the disk has very
>little room left and I could use additional memory as well. So I opened up
>the case, saw that there is extra cable and power supply for another hard
>disk. 
>
>However, I was surprised to find ONLY TWO 72 pin slots for SIMMs. Both the
>slots have 4MB boards.  How can I upgrade from 8MB to 16MB, without, in
>effect, wasting my current two SIMMs? Should my PC's mother board have
>come with 4 slots? 
>
>Right next to the 72 pin slots, there are 4 more 30 pin slots. Can I fill
>2 of these slots with 4MB modules? In other words, can I use 30 pin and 72
>pin memory at the same time? 
>
>Thanks a lot.  --raj (raj@goliath.Stanford.EDU)
>-- 
>--
>Rajesh Kumar Singh                   E-mail: raj@goliath.stanford.edu
>Gauls!  We have nothing to fear; except perhaps that the sky may fall
>on our heads tomorrow.  But as we all know, tomorrow never comes!!

Yes, you can mix 30-pin SIMMS and 72-pin SIMMS in a 486. Just be sure
to fill ALL FOUR slots in the 30-pin bank with the exact same modules.

Therin lies the rub. If you add 4-4MB SIMMS, you will end up with 24MB
of RAM. Each module will run about $30-35 ea. If you trash (or sell)
your 72-pin 4MB SIMMS, you should be able to buy 2-2X32 SIMMS (16MB)
for about $90.
J.