HP BOOK XE4500 manual Troubleshooting Suggestions, Startup

If you cannot isolate the cause of a problem using the above diagnostic tools, use the suggestions in the following table to help find the problem.

Table 3-3. Troubleshooting Suggestions

Symptom	Call Center:	Repair Center:	Repair Center:
	Suggestions	Likely Causes	Comments

To help determine likely causes of a problem, determine which replaceable modules are involved in the system function and what roles they play: see the figure on page 1-14 and the table on page 1-15.

Startup

Does not boot on	Check power source.	AC adapter.	Check AC adapter. Remove
AC or battery.	Press and hold power button	SDRAM module.	all but one SDRAM module
	to turn notebook off, then	CPU module.	and try again.
	press power button to turn	Switchboard PCA.	If power status light does not
	notebook on.		turn on, reprogram BIOS,
		Motherboard.
	Unplug AC adapter, remove		replace top case, replace
		Display assembly.
	the battery and any PC		motherboard.
	cards, press reset button to	Hard drive.	If power status light turns on
	turn notebook off, then		but display remains off, try
	reconnect power and try		external monitor. If monitor
	again.		shows successful boot,
	Do not use touch pad while		replace display assembly. If
	booting or resuming.		monitor shows activity but
	Remove all but one SDRAM		BIOS does not complete,
			replace display assembly. If
	module and try again.
			monitor is blank, replace
	Reinsert any other SDRAM
			switchboard PCA, replace
	module and try again.
			motherboard.
			If power status light and
			display turn on, BIOS
			completes, but OS does not
			start from hard disk or floppy
			drive, replace CPU module,
			replace motherboard. If OS
			starts from floppy drive,
			reload hard drive, replace
			hard drive.
Beeps once, spins	Make sure at least one	SDRAM module.
hard disk, repeats,	SDRAM module is installed.
but does not boot.
Does not boot on	Make sure battery is properly	Battery or contacts.
battery, but boots	installed and fully charged.	Motherboard.
on AC.	Check battery level on
	battery LEDs.
	Check battery contacts. If
	available, try another battery.
Does not boot from	Make sure floppy disk is	Floppy disk or floppy	Make sure floppy drive is
floppy drive.	bootable.	drive.	installed and connected
	Use BIOS Setup to check	Motherboard.	correctly.
	default boot order.
Does not boot from	Make sure CD is bootable.	CD/DVD drive.	Make sure CD/DVD is
CD in CD/DVD	Use BIOS Setup to check	Motherboard.	installed and connected
drive.	default boot order.		correctly.
	Restart notebook.

3-6 Troubleshooting and Diagnostics HP Omnibook XE4100/XE4500