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Management port
(J53)
Serial port A
(J52)
Serial port B
(J51)
BIOS code
page jumper
(J19)
Remote
Supervisor
Adapter
(J57)
DIMM 4
(J47)
DIMM 3
(J41)
DIMM 2
(J34)
DIMM 1
(J32)
Microprocessor 2
(U79)
Microprocessor 1
(U47)
Operator
information
panel (J43)
Fan 5 (J35)
Fan 6 (J38)
System board jumper blocks
Any jumper blocks on the system board that are not shown in the illustration are
reserved. For normal operation of the system, no jumpers should be installed on any
of the jumper blocks. See "Recovering BIOS" on page 18 for information about the
Flash ROM page-swap jumper.
System board switch block
The switch block contains microswitches 1-4. As pictured in this illustration, switch 1
is at the top of the switch block and switch 4 is at the bottom. For more information
about this switch block see "Setting the password override switch" on page 32.
The following table describes the function for each switch.
Table 8. Switches 1-4.
Switch number
1
Force power-on. The default setting is Off (disabled).
2
Reserved. The default setting is Off.
3
Reserved. The default setting is Off.
C2T (in)
USB 1
port (U38)
port (J13)
USB 2
port (J15)
C2T (out)
port (U61)
Switch block
(SW1)
Battery
Fan 3 (J22)
Fan 4 (J24)
Switch description
RS-485 (Advanced
System Management
interconnect) ports (J5)
Ethernet
ports (J1)
PCI slot 2
64 bit
33 MHz (J23)
PCI slot 1
64 bit
33 MHz (J10)
Primary IDE
(J7)
Secondary
IDE (J2)
SCSI signal
(J4)
Power (J3)
Power (J6)
Diskette (J11)
SCSI hard disk
drive power (J8)
Fan 1 (J12)
Fan 2 (J14)
CD Power (J17)
Installing options
45
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