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If you frequently use programs that require the processor to

operate at low speed or require the automatic speed change

when your computer is accessing a diskette, use SETUP to

change the processor speed. See Chapter 2 for instructions.

If you use these programs only occasionally, you should use the

keyboard commands or the ESPEED program (described below)
to change the processor speed.

You can change the processor speed by entering one of the

following commands at the MS-DOS prompt:

Ctrl Alt +

Changes the processor speed to high

(12 MHz).

Ctrl Alt -

Changes the processor speed to low

(6 MHz).

For the + and - characters, press the keys on the numeric

keypad. The commands do not work if you use the keys on the

main keyboard.

Note

You can use the commands listed above while you are

running a program. However, if you are running a program

that uses one of the same commands for another function,
you cannot use that command to change the processor speed.

For example, if you are running a program that uses the

Ctrl Alt 

- command to move the cursor, you cannot enter

Ctrl Alt 

- to change the processor speed to low. When you

exit the program, you can enter these commands at the

MS-DOS prompt to change the processor speed. Another

alternative is to use the ESPEED program, described below.

4-4

Enhancing System Operations