HP 810-170st, 120-1000z, 120-1031, 120-1150xt Power, Display monitor, Symptom, Screen Resolution

Power

Symptom Possible solution

Error message: Invalid system disk or Non-System disk or Disk error.

When drive activity stops, remove the disk and press the spacebar on the keyboard. The computer should start up.

Computer does not turn	Press and hold the On button until the computer turns off.
off when the On button	Check Power Settings.
is pressed.
Computer shuts down	The computer may be in an exceedingly hot environment. Let it
automatically.	cool down.
	Ensure computer air vents are not blocked and internal fan is
	running. Note that your computer may not have an internal fan.
	See “Cleaning the computer vents” on page 50.

Display (monitor)

Symptom	Possible solution (In addition to the information listed here,
	also refer to the documentation that came with your monitor.)
Screen is blank, and	Reconnect the power plug to the back of the monitor and to the
monitor power light is	wall outlet.
not lit.
	Press the On button on the front of the monitor.
Screen is blank.	Press the space bar on the keyboard or move the mouse to
	make the screen display visible again.
	Press the Sleep button (select models only), or the Esc key on the
	keyboard, to resume from Sleep mode.
	Press the On button to turn on the computer.
	Inspect the monitor video connector for bent pins:
	￿ If any of the pins are bent, replace the monitor connector
	cable.
	￿ If no pins are bent, reconnect the monitor connector cable
	to the computer.
Images on the screen	Adjust the monitor resolution setting in Windows 7:
are too large or too	1 Click the Start button, and then click Control Panel.
small, or the images are
	2 Under Appearance and Personalization, click Adjust
fuzzy.
	Screen Resolution.
	3 Adjust resolution as necessary, and then click Apply.

Troubleshooting and Maintenance 31