User`s guide

Recommended Action: Replace the keyboard.
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Message: 301 Keyboard Error
Beeps: None (Beeps can be disabled by the user from the
Computer Setup utility.
Probable Cause: Bad results from keyboard test
Recommended Action: Replace the keyboard.
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Message: 301 Keyboard Error
Beeps: None (Beeps can be disabled by the user from the
Computer Setup utility.
Probable Cause: Keyboard failed interface test
Recommended Action: Replace the keyboard.
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Message: 303 Keyboard Controller Error
Beeps: None (Beeps can be disabled by the user from the
Computer Setup utility.
Probable Cause: 8042 error clearing the output buffer
Recommended Action: 1. Replace the keyboard
2. Replace the trackball and trackball cable.
3. Replace the system board.
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Message: 303 Keyboard Controller Error
Beeps: None (Beeps can be disabled by the user from the
Computer Setup utility.
Probable Cause: Keyboard controller (8042) self test failed
Recommended Action: 1. Replace the keyboard.
2. Replace the trackball and trackball cable.
3. Replace the system board.
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Message: 303 Keyboard Controller Error
Beeps: None (Beeps can be disabled by the user from the
Computer Setup utility.
Probable Cause: System board keyboard controller
Recommended Action: 1. Replace the keyboard.
2. Replace the trackball and trackball cable.
3. Replace the system board.
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Message: 303 Keyboard Controller Error
Beeps: None (Beeps can be disabled by the user from the
Computer Setup utility.
Probable Cause: Reset of A20 failed