Maintenance & Service Guide

Presario 1600 Series Portable Computers

Notice Preface Home Product Description Troubleshooting Illustrated Parts Catalog

Removal & Replacement Procedures Specifications Connector Pin Assignments Battery Pack

Power On Self Test (POST)

Running POST

To run POST, complete the following steps:

Turn off the computer. Let stand for a 10 count, then turn the computer back on.

If POST does not detect any errors, the computer will not beep. This indicates successful completion of POST test. POST has run successfully and boots from the hard drive (or from a bootable diskette if one is installed in the diskette drive).

If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to "Power-OnSelf-Test (POST) Codes" for a list of POST

codes and their relevant descriptions.

If the system is not functioning well enough to run POST, or if the display is not NOTE: functioning well enough to show POST error messages, refer to the Troubleshooting

tables.

Power-On Self-Test Messages

102 162 301 304 601 605 1780 1782

Probable Cause Recommended Action

102-System Board Failure

DMA, timers, etc.

Replace the system board.

 

162-System Options Not Set

Configuration incorrect

CMOS reflects that an invalid configuration has been set.

RAM failure

Memory test data error XX000YZZ RAM failure

Keyboard failure

Run Computer Setup.

Run Computer Setup.

1.Replace the memory modules.

2.Replace the system board.

1.Replace the memory modules.

2.Replace the system board.

Replace the system board.

301-Keyboard Error

1.Ensure the keys are not depressed during POST.

2.Reconnect the keyboard with the computer off.

3.Replace the keyboard.

304-Keyboard or System Unit Error

1. Replace the keyboard.

Keyboard or system board error 2. Replace the TouchPad or mouse. 3. Replace the system board.

601-Diskette Controller Error

Mismatch in drive type or failure in the

1.

Run Computer Checkup (TEST).

2.

Check and/or replace cables.

diskette controller

3.

Replace the system board.

 

605-Diskette Drive Error

Mismatch in drive type

Run Computer Setup.

1780-Primary Hard Drive 0 Failure

Disk 0 failed to respond Hard drive format error

1.Run Computer Checkup (TEST).

2.Replace the hard drive.

1.Run Computer Checkup (TEST).

2.Replace the hard drive.

1782-Hard Drive Controller

Hard drive controller failure

1.

Run Computer Setup.

2.

Replace the hard drive.

 

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HP 1630 manual Power On Self Test Post, Running Post