HP Book 800CT manual Computer noisy but working, Miscellaneous

Symptom	Call Center	Repair Center
	comparing it to another OB800?
	Is customer a heavy user?
Some or all keys not working	Remove the 2 keyboard screws	Check keyboard flex
	and check keyboard flex cable	connection. If OK, try another
	connections visually. If not	keyboard. If still bad, replace
	aligned properly in the	logic board.
	connector, send in for repair.
	These connectors can be
	damaged if the proper tool is not
	used to disconnect the cables.
Computer noisy but working
HDD “clunking or scratchy”	Was the computer dropped?	Replace HD. Check computer
	Back the drive up immediately!	case for evidence of customer
		abuse.
Buzzing or whining	Back the drive up immediately!	Replace logic board.
	Is the sound present when HD
	not spinning? Is there a
	PCMCIA hard drive in the slot
	that is making the noise? Does
	pressing a key cause the sound
	to change? If yes, then this is
	probably power supply noise.
	Only if it is very objectionable
	should computer be sent in for
	repair.
Miscellaneous
Computer does not resume	Try using reset button. Check	Replace CPU board (see
after:	BIOS version and install latest	Service Note 800-02A).
∙ Being suspended	(v1.02.00). Otherwise, send in
∙ A reset	for repair.
∙ An alarm from an
application
File corruption	Run a virus scan program. Boot	Try steps at left. If keyboard
	to DOS and run CHKDSK to look	support plate of old design
	for lost clusters, cross-linked	(without notch), add I/O
	chains. If present, run CHKDSK	insulator to plate above HD
	/f to fix. Then run Scandisk	connector (see Service Note
	surface scan to test for damaged	800-09). Check for latest BIOS
	HD platter. Use Recovery CD to	(v 1.02.00). Run a virus
	recover Omnibook files	checker.
	corrupted. If computer still has
	problems, return for repair.
Computer gets hot	It is normal for computer to get
	hot, especially when charging.
	DOS applications (games?) and
	poorly written Windows
	applications can contribute. Run
	System Monitor and look at CPU
	activity. Suspend applications
	that drive CPU usage toward
	100%. PCMCIA modem cards
	normally get very hot when in
	use.
Computer won’t time out	Does the cursor jitter? If so,	Does the cursor jitter? This will

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