System-board
internal
connectors
and
switches
The
following
illustrations
show
the
internal
connectors
and
switches
on
the
system
board.
See
Table
2
for
information
about
the
switch
settings.
Wake on LAN
(CN 45)
SW4 (Boot block/Clear CMOS)
Table
2.
Switches
on
SW4
Switch
number
Description
1
Boot
block:
v
Leave
the
switch
in
the
off
position
for
normal
mode.
v
Move
the
switch
to
the
on
position
to
enable
the
system
to
recover
if
the
BIOS
code
becomes
damaged.
14
IBM
System
x3500
Type
7977:
User’s
Guide
Summary of Contents for 7977E7U
Page 1: ...IBM System x3500 Type 7977 User s Guide...
Page 2: ......
Page 3: ...IBM System x3500 Type 7977 User s Guide...
Page 14: ...xii IBM System x3500 Type 7977 User s Guide...
Page 66: ...52 IBM System x3500 Type 7977 User s Guide...
Page 94: ...80 IBM System x3500 Type 7977 User s Guide...
Page 102: ...88 IBM System x3500 Type 7977 User s Guide...
Page 107: ......
Page 108: ...Part Number 44R5219 Printed in USA 1P P N 44R5219...
