Symptom
White display
Erratic display
Bright or missing pixels or lines
Hard disk
Hard disk never spins
Hard disk makes clunking or scratching noise
Hard disk makes buzzing or whining noise
Files are corrupted
Drive capacity is less than normal
Floppy drive
General problems
Call Center:
Suggestions
Adjust display brightness.
See quality statement on page
Check the power source.
Remove and reinsert the hard drive. Check the contacts.
Back up the drive immediately.
Was the computer or drive dropped?
Back up the drive immediately.
Check for alternate noise sources, such as a PCMCIA drive or fan.
If a keystroke causes the sound to change, it may be power supply noise.
Run a virus scan program.
Check the disk surface by running Scandisk (Windows 95/98) or Disk Administrator (Windows NT). Or boot to DOS and run CHKDSK to look for problems, run CHKDSK /f to fix.
Use Recovery CD to restore original factory software.
Check the disk surface by running Scandisk (Windows 95/98) or Disk Administrator (Windows NT).
Check partitions using FDISK (Windows 95/98) or Disk Administrator (Windows NT).
Check floppy drive contacts.
Try reseating the external module bay cable and the module into the bay.
Try using alternate connection (with accessory floppy cable or external module bay).
Check settings in BIOS Setup.
Repair Center:
Likely Causes
LCD module.
Motherboard.
LCD flex cable or connections.
LCD module.
LCD module.
LCD flex cable or connections.
Hard drive or contacts.
Motherboard.
Hard drive.
Depends on the source of the noise.
Hard drive.
Floppy drive or contacts.
Accessory floppy cable.
External module bay. Motherboard.
Repair Center:
Comments
Make sure the LCD module and flex cable have small foam pads
See quality statement on page
Check the computer and drive for evidence of customer abuse.
For a serial number before TW92500000, remove the drive and check whether the slot has a metal bracket across the inside top of the slot. If there is no bracket, you should install a HDD bracket and required case parts. (Service note
Use same suggestions shown at left.
Use same suggestions shown at left.
Recreate the Hibernate partition (see page
HP OmniBook 900 | Troubleshooting and Diagnostics |
