Symptom

Does not boot from floppy drive

Error message such as “Invalid system disk” or “Auto IDE error”

Sluggish startup or shutdown

Password has been forgotten

Power/Battery

Short battery operating time

Does not run on battery, empty battery indication

Call Center:

Suggestions

Check floppy drive contacts.

Try using alternate connection (with or without floppy cable).

Check boot order in BIOS Setup.

Check that floppy boot is enabled in BIOS Setup.

Check for a disk in floppy drive.

Remove and reinsert hard drive.

Check boot order in BIOS Setup.

Run ScanDisk and Disk Defragmenter to check and optimize the hard drive.

Delete temporary and unneeded files.

Verify proper ownership, then follow the removal procedure with the owner and log the appropriate data—see page 5-1.

Turn down display brightness.

Check power management settings in BIOS Setup. Try the default settings.

For an OmniBook 4150B, shut down and restart. During boot at the F2 prompt, press F6. This starts a process that recalibrates the battery gauge, possibly inproving operating time. When the discharge cycle ends, you may have to unplug and reconnect the ac adapter to begin recharging.

Inform user that certain applications can cause excess power usage. (User can get power monitor from www.intel.com and monitor CPU load.)

Some PC cards (PCMCIA) draw power even while not in use.

Heavy modem use can affect battery operating time.

Check battery contacts. If available, try another battery.

Repair Center: Likely Causes

Floppy drive or contacts.

Floppy cable. Motherboard.

Hard drive contacts. Hard drive.

Battery.

Motherboard.

Battery or contacts. Motherboard.

Repair Center:

Comments

If unit boots from floppy drive, check for corrupt files on hard drive, reload hard drive, replace hard drive.

Use same suggestions shown at left.

The user must call Technical Support and provide proof of ownership. Password removal is restricted to certain sites. See page 5-1.

Battery capacity often decreases after a year or more.

For an F1629A OmniBook 4150† with certain serial numbers between TW84257202 and TW84358133, check the CPU module to see if it must be replaced—see Service note 4150-01.

3-6

Troubleshooting and Diagnostics

HP OmniBook 4100/4150