VTech Write It Right Computer Dokumentacja Pobierz pdf (Strona 48)

Expanding System Memory to 640K

MS-DOS itself recognizes up to 640K of memory. Because the

computer comes with 512K

memory, one

the fIrst en-

hancements

recommend

expanding the system memory to

its

full

640K.

There are four simple tricks to successfully installing memory

on the system board:

Purchase the correct memory chips.

Install the chips in the right place on the system board.

Make sure the chips are pointing the right

way

when you

install them

in their sockets.

Make sure none of the pins on the chip bend when you

are pushing the chip into the socket.

5 Set the proper switch on the system board so the computer recognizes

all

640K.

Let's take each step in detail. As

always,

before you install

anything, Make sure the computer

unplugged from the wall

outlet!

Purchase the correct memory chips.

Ask your dealer for four (4)

4464

RAM chips (64K RAM

The chips must be

150

nanoseconds (150ns)

faster.

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VTech Write It Right Computer Dokumentacja Strona 48