Predisassembly Procedures - HP Z400 Maintenance And Service Manual

Table 5-3 6-DIMM system board components ID (continued)
Item Component
7 Main power
8 Battery
9 Floppy disk drive
10 Password jumper
11 Chassis intrusion switch
For related system architecture information, see

Predisassembly procedures

NOTE: Read
Perform the following steps before servicing a workstation:
1.
Review the safety information and precautions in
Safety and Regulatory Information for the workstation.
2.
Locate and clear a suitable work area.
3.
Close all open software applications.
4. Remove all diskettes, CDs, and DVDs from the workstation.
5.
Shut down the operating system.
6.
Power off the workstation and all peripheral devices connected to it.
7.
Remove or disengage security devices that prevent you from opening the workstation.
8. Disconnect the power cord from the electrical outlet and then from the workstation.
9.
Disconnect peripheral device cables from the workstation.
10.
Gather the tools.
11. Service the workstation.
12. Return your workstation to use by reversing the appropriate steps in this procedure when servicing
is done.
ENWW
Item
18
19
20
21
22
Warnings and cautions on page 65
Component
SATA ports
Internal USB 2
Front USB
Speaker
Front 1394a
System board architecture on page
before servicing this component.
Warnings and cautions on page 65
Removing and installing components
Item Component
29 Audio
30 Network/USB
31 USB
32 Keyboard/mouse
33 Serial
2.
and the
75