Frankie--

An "odd" ram count like your reported 1.5 gig will force the BIOS to run your ram in "Single Density Mode".

This is simply taking an unneeded performance hit.

With the Double Density ram systems, it is necessary to always have PAIRS OF IDENTICAL RAM installed, both of the same size and type.

Right now, you very likely should have improved performance by removing the half gig stick, assuming that what you have is either two 500mb sticks to make 1gb and then added one more 500mb stick, or perhaps the computer had just one 1g stick by itself.

When the ram count is done as above the Double Density feature means that the 1 gig will actually do double duty, clocking twice per clock cycle - and thus will let your computer run as if it has TWO gigabytes of ram available. This is also nearly twice as fast as when the BIOS is forced to run as single density, even though the actual ramcount looks higher.


--Mac

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