HP Z 440 Owners Manual

							4.When the key icon appears, enter the current password, a slash (/) or alternative delimiter character, the 
new password, another slash (/) or alternative delimiter character, and the new password again as 
shown: 
currentpassword/newpassword/newpassword
For information about the alternative delimiter characters, see National keyboard delimiter characters 
on page 42.
Type carefully. For security reasons, the characters you enter do not appear on the screen.
5.Press Enter.
The new password takes e

						

							National keyboard delimiter characters
Each keyboard meets country-speci

						

							Setting the protection level
To set the Smart Cover Sensor protection level:
1.Turn on or restart the computer.
2.During startup, press and hold the F10 key until you enter Computer Setup (F10) Utility. Press Enter to 
bypass the title screen, if necessary.
NOTE:If you do not press the F10 key at the appropriate time, you must restart the computer, and 
then press and hold the 
F10 key again to access Computer Setup (F10) Utility.
If you are using a PS/2 keyboard, you might see a keyboard error message. Disregard it.
3.Select Security > Smart Cover > Cover Removal Sensor, and follow the onscreen instructions.
4.Before exiting, select Main > Save Changes and Exit.
Cable lock (optional)
To prevent theft, you can attach a keyed cable lock to the bottom-left corner of the chassis. This cable lock 
attaches to the chassis and secures it to the work area.
Fault notL

						

							Changing the power button con

						

							3Component replacement information and guidelines 
This chapter provides warnings, cautions, information, and guidelines for removal and replacement procedures. It does not document the step-by-step procedures.
IMPORTANT:Removal and replacement procedures are now available in videos on the HP website.
Go to the HP Customer Self Repair Services Media Library at http://www.hp.com/go/sml.
This chapter includes these topics:


						

							CAUTION:Static electricity can damage the electronic components of the computer. To prevent damage to 
the computer, observe the following Electrostatic Discharge (ESD) precautions while servicing the computer:
— Discharge static electricity by brie

						

							Product recycling
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable 
batteries.
For information about recycling HP components or products, see http://www.hp.com/go/recycle.
Component replacement guidelines 
This section provides information and guidelines for removal and replacement procedures. It does not 
document the step-by-step procedures.
IMPORTANT:Removal and replacement procedures are now available in videos on the HP website.
Go to the HP Customer Self Repair Services Media Library at http://www.hp.com/go/sml. In Media Selection, 
choose the 
Desktops & Workstations product category and the Personal Workstations product family, then 
choose your platform
This chapter provides guidelines for removal and replacement procedures.
Battery on page 48Cable management on page 49Processor and processor heatsink on page 50Expansion slots on page 51Hard drives and optical drives on page 59Memory on page 65Power supply speci

						

							Cable management 
Proper routing of the internal cables is critical to the operation of the workstation. Follow good cable management practices when removing and installing components.


						

							Processor and processor heatsink CAUTION:Observe the following cautions when removing or replacing the heatsink.
— When removing the heatsink, loosen all screws a little at a time to ensure the processor remains level. Do 
not fully loosen one screw, and then move on to the next.
— After you remove the processor heatsink from the chassis, use alcohol and a soft cloth to clean the thermal 
compound residue from the processor and the heatsink, allowing the alcohol on the processor and processor  heatsink to dry completely.
— If you are reusing the original heatsink, apply thermal compound to the center of the processor top  surface.
— If you are using a new processor heatsink, do not apply thermal compound to the processor because the 
new heatsink already has thermal compound applied to the heatsink surface. Instead, remove the thermal  compound protective liner from the bottom of the new heatsink.
— Do not overtighten the heatsink screws. Overtightening can strip the threads in the chassis.
— Do not fully tighten one screw and then move on to the next. Instead, tighten all screws a little at a time, 
ensuring that the processor remains level.
CAUTION:Observe the following cautions when removing or replacing the processor.
— If you are installing a second processor, it must be of the same type as the