WARNING: The jumpers on these cards are preset at the factory in default positions. Do not change any of them unless you are sure the option card you are installing requires different settings. If you have any doubts, ask your Epson dealer.

The procedure for changing a jumper setting is given first, then the jumper functions and locations for each card are described separately. All the instructions assume you have already removed the cover from the main unit. For instructions on removing the cover, replacing the cover, and installing and removing option cards, see Chapter 4.

Changing a Jumper Setting

A jumper’s setting is determined by where the jumper is placed: either between pin A and the middle pin (position A) or between pin B and the middle pin (position B). Figure A-2 shows both positions.

Position A

Position B

&&be @be @B

AAA

Figure A-2. Jumper positions

To move a jumper from one position to the other, use needle-nose pliers or tweezers to lift it off the board and gently move it to the other position. Be careful not to lose the jumper or leave it out of the computer.

Memory Card Jumpers

The jumpers on the memory card control the following functions:

•Amount of RAM (main memory). If you install a memory card that needs to use part of the main memory, you may need to change the jumper settings to disable some of the main memory on the memory card. Be sure to check your memory card instructions to see if this is necessary

A-2

User’s Guide