Diagnostics and Troubleshooting 3-11

Table 3-2

POST Error Messages continued

Error Code

Audible Beeps

Probable Source of Problem

 

Recommended Action

ZZ-301 - Keyboard

None

Keyboard failure. (ZZ represents

1.

A key is stuck. Try to free

Error

 

the Keyboard Scan Code.)

 

it.

 

 

 

2.

Replace the keyboard.

 

 

 

 

 

303 - Keyboard

None

System board, keyboard, or

1.

Run Diagnostics.

Controller Error

 

mouse controller failure

2.

Replace failed assembly

 

 

 

 

 

 

 

as indicated.

 

 

 

 

 

304 - Keyboard or

None

Keyboard, keyboard cable, or

1.

Make sure the keyboard is

System Unit Error

 

system board failure

 

attached.

 

 

 

2.

Run Diagnostics to

 

 

 

 

determine which is in

 

 

 

 

error.

 

 

 

3.

Replace the part indicated.

 

 

 

 

40X - Parallel Port X

2S

Both external and internal ports

Run the System Configuration

Address Assignment

 

are assigned to parallel port X.

Utility and correct.

Conflict

 

 

 

 

 

 

 

 

 

601 - Diskette

None

Diskette controller circuitry

1.

Make sure the diskette

Controller Error

 

failure

 

drive cables are attached.

 

 

 

2.

Replace the diskette drive

 

 

 

 

and/or cable.

 

 

 

3.

Replace the system board.

 

 

 

 

605 - Diskette Drive

2S

Mismatch in drive type

Run the System Configuration

Type Error

 

 

Utility to set diskette type

 

 

 

correctly.

 

 

 

 

1151 - Com Port 1

2S

Both external and internal serial

Run the System Configuration

Address Assignment

 

ports are assigned to COM1.

Utility and correct.

Conflict

 

 

 

 

 

 

 

 

1152 - Com

2S

Both external and internal serial

Run the System Configuration

Port 2, 3,

 

ports are assigned to COM2,

Utility and correct.

or 4 Address

 

COM3 or COM4.

 

 

Assignment Conflict

 

 

 

 

 

 

 

 

1610 - Temperature

2S

Ambient system temperature too

Check fan in system

violation detected.

 

hot

environment.

Waiting for system to

 

 

 

 

cool

 

 

 

 

 

 

 

 

1611 - Fan failure

2S

Required fan not installed or

Check fans.

detected

 

spinning

 

 

continued

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Image 65
Compaq ML370 manual Error Code