7.If your computer still does not respond, you can reset it using the Ctrl Alt Del command. If that command doesn’t work, you can reset the computer with the RESET button. See “Resetting Your Computer” in Chapter 3 for more information.

8.If resetting the computer does not work, turn off the computer and wait at least five seconds. If you do not have a hard disk drive, insert the Startup diskette in drive A. Then turn on the computer. It should load MS-DOS.

9.If you installed an EGA or VGA display adapter card, or another type of card that you want to be the primary display adapter, you must set jumper JP14 to disable the built-in VGA adapter. Otherwise, you will not see any display on the screen. See “Changing the Jumper Settings” in Chapter 5 for instructions.

If you are using one or more display adapter cards, you may also need to change the setting of jumper JP12. This jumper tells the computer whether you are using a color or monochrome monitor. (JP12 is set for color at the factory.) If the jumper is set incorrectly, you see one of these messages:

❏401 CRT error

❏501 CRT error.

If you are using two different types of video cards, set jumper JP12 to the primary monitor type. You may also need to change the setting later if you change the type of monitor you are using. See “Changing the Jumper Settings” in Chapter 5 for instructions.

Troubleshooting D-7