🚀 go-pugleaf

Richard Howlett wrote:
> 
> Stuart Baldwin wrote:
> >
> > I have in my possession a 1994 vintage, Morgan Generic-badged, IBM Blue
> > Lightning 486DX2/66.  I plan, if possible, to add a network card and use
> > it as a Linux server/router/etc. and would be interested if anyone here
> > is familiar with these machines and can warn of any potential problems
> > or eccentricity or can point me at a good online source of this sort of
> > information.
> 
> Don't know much about the actual IBM hardware itself but it will certainly
> make a decent enough server/router even with only 8MB of RAM.
> 
> >
> > It has 4x72 pin SIMM sockets, currently populated with 2x4MB SIMMS.  I
> > have a spare 4MB SIMM from a more conventional 486DX4/100 motherboard
> > (which won't fit the IBM case) that I could add to the existing 2 if a)
> > it is compatible and b) these SIMMS can be added singly, rather than in
> > pairs.  If I don't get any info on this I plan to just plug the extra
> > SIMM in and see what happens.  Am I likely to cause any damage by doing
> > this?
> 
> You are unlikely to damage the mobo by adding a single SIMM but an odd
> number of SIMMs just won't work!

Ooops! Engage brain before bashing away on keyboard. 

The 486 architecture has a 32 bit bus so SIMMs *should* work OK when added
singly. Pentiums need pairs of SIMMs coz they've got a 64 bit bus or DIMMs
of course!

-- 
Richard Howlett

mailto:richard@howie.org.uk