How do you do that cheapo upgrade?

Frans

Martin Wilson wrote:

> On Sun 02 Apr, Dave Laundon wrote:
> > Frans van Egmond wrote:
> >
> > > I noticed two chips (both with a number 256 on them) assuming these are
> > the
> > > RAM chips, I couldn't find other chips resembling RAM chips in my SAM,
> > this
> > > would make 512K, right?
> > > However when switched on the SAM reports 256k...
> > > Is it faulty?
> > >
> > > Frans
> >
> > Each chip is 256K x 4-bits making 256KB in total.  In 512K machines there
> > are four chips, the other two being accessible without having to take SAM
> > appart, behind the small plastic cover in the middle of the base.
> >
> > Dave.
> >
>
> My Sam has nothing behind the ram expansion cover and yet has 512k RAM.
> Spooky eh? Well actually I did the cheapo ram expansion with just bare chips
> and a bit of wire. Works fine so no regrets.
>
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