HP 2129EA, 2175EA, 2164EA, 2163EA, 2160US, 2158EA, 2165EA, 2166EA, 2505AP, 2502AP, 2500AP Memory, Sdram

	Call Center:	Repair Center:	Repair Center:
Symptom	Suggestions	Likely Causes	Comments
Touch pad
General problems.	Reset notebook (see	Top case.
	page 1-21).	Motherboard.
	Check settings in Control
	Panel. Make sure touch pad
	is enabled in Mouse
	Properties.
	By default, touch pad is
	disabled if external PS/2
	mouse is connected, Use
	BIOS Setup to check
	settings.
	Avoid touching touch pad
	while booting or resuming.
Special touch pad	In Mouse Properties, select	Top case.
features not	Synaptics PS/2 TouchPad	Motherboard.
working.	driver. (Driver is installed
	from \hp\drivers\touchpad.)
Click button does		Top case.
not work.		Motherboard.
Memory
Out of memory	Make sure C drive has	SDRAM module.
error.	adequate free space. Delete
	temporary and unneeded
	files.
	Use memory troubleshooter
	in Windows Help.
	Not all third-party memory
	cards have been tested for
	use with notebook.
Notebook does not	Use only DDR-266 SDRAM	SDRAM module.
boot after adding	modules.
SDRAM.
Audio
No sound audible.	Increase sound volume.	Top case.	Check operation using
	Check whether sound is	Speaker assembly.	headphones or external
	enabled (mute button and	Switchboard PCA.	speakers (switchboard PCA).
	software controls).	Motherboard.	Make sure speaker assembly
	Check for sound resource		cable is connected.
	conflicts in Device Manager.
	Test audio with e-Diagtools
	diagnostics.
Sound does not	Use an external microphone	Switchboard PCA.
record.	(internal microphone normally	Motherboard.
	not included).
	Check software controls.
	Test audio with e-Diagtools
	diagnostics.

Service Manual Troubleshooting and Diagnostics 3-13