System Board Jumpers And Switches - HP Deskpro EN Supplementary Manual

B
appendix
S B
YSTEM OARD
S
WITCHES
This section provides information for setting DIP switches after
upgrading the processor and for setting jumpers to enable,
disable, or clear passwords or clear the configuration memory
(CMOS).
To set the system board jumpers and switches, you must remove
the computer cover. Refer to the "Removing the Computer Cover"
section in Chapter 3.
WARNING:
To reduce the risk of personal injury from electrical
!
shock and/or hot surfaces, be sure to disconnect the power cord
from the wall outlet, and allow the internal system components to
cool before touching.
CAUTION:
When the unit is plugged in, the power supply always
has 5 V applied to the system board even when the unit is turned
off. Failure to disconnect the power cord can result in damage to
the system.
CAUTION:
Static electricity can damage the electronic
components of the computer or optional equipment. Before
beginning these procedures, ensure that you are discharged of
static electricity by briefly touching a grounded metal object. Refer
to the Safety, Care & Regulatory Information guide.
J
UMPERS AND
Guide to Features & Upgrades B-1