System-board
jumpers
The
following
illustration
shows
the
jumper
blocks
on
the
system
board.
BIOS recovery jumper (J22)
Boot block
jumper (J5)
Clear CMOS jumper (J19)
Any
jumper
blocks
on
the
system
board
that
are
not
shown
in
the
illustration
are
reserved.
The
following
table
describes
the
function
of
each
jumper
block.
Table
2.
System-board
jumper
blocks
Jumper
name
Description
Boot
block
(J5)
v
Pins
1
and
2:
Normal
(default)
v
Pins
2
and
3:
Recover
BIOS
(see
“Recovering
from
a
BIOS
update
failure”
on
page
46).
Clear
CMOS
(J19)
v
Pins
1
and
2:
Clear
the
CMOS
data,
which
clears
the
power-on
password
and
the
administration
password.
v
Pins
2
and
3:
Keep
CMOS
data
(default)
BIOS
recovery
(J22)
v
Pins
1
and
2:
Normal
(default)
v
Not
installed
(removed):
BIOS
recovery
Chapter
1.
Introduction
11
Содержание x3105 - System - 4347
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