🚀 go-pugleaf

steveja@werple.net.au (Stephen Anderson) wrote:

>I have an IBM pc clone with 16MB of ram.  Unfortunately the company I
>bought the computer from is no longer in business, so I can't get any
>details of the type of Ram which was installed in my machine.
>
>Is there any utilities I can download from the net which will
>investigate my ram and report its full details?
>
>Also, what is the consequence of having mismatched ram.  Will the
>machine still work?  What if my old ram is 70ns and I install a
>further 16MBs which has faster or slower specs?
>
>Finally, what happens if you mismatch parity ram with no-parity ram?
>Is EDO ram parity ram or is it something completely different?
>
>Any advice will be greatly appreciated.

Just open the case and look at the SIMMs (pull one out). Count the
pins to see whether you need 30-pin or 72-pin SIMMs. Look at the text
on the chips to determine the speed: last one or two digits after a
dash (7 and 70 indicate 70ns, 6 or 60 indicates 60ns, etc.). You have
to buy memory of the same speed or faster (if you want to use it in
any future system you may buy), never slower. Count the chips on each
SIMM to determine whether you need parity or not: even number means no
parity, odd-parity. That's all the info you need. One more thing, you
need to ad SIMMs in pairs if it's a Pentium MB (i.e. if you want to ad
16MB, you have to ad two 8Mb chips).

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Help a man against his will and you do the same as murder him.
                          Horace (65-8 B.C.), Roman poet. 

Jason Dulnev
dulnev@welchlink.welch.jhu.edu
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