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System board
The illustrations in the following sections show the components on the system
board.
System board options connectors
The following illustration identifies the connectors on the system board.
BIOS code
page jumper
(J19)
Remote
Supervisor
Adapter
(J57)
Microprocessor 2
(U79)
Microprocessor 1
(U47)
Operator
information
panel (J43)
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 31.
44
Hardware Maintenance Manual: xSeries 330 Type 8674, IntelliStation R Pro Type 6851, and Network Equipment Building
System Type 8674
Management port
(J53)
Serial port A
C2T (out)
(J52)
port (U61)
Serial port B
(J51)
DIMM 4
(J47)
DIMM 3
(J41)
DIMM 2
(J34)
DIMM 1
(J32)
Fan 5 (J35)
Fan 6 (J38)
C2T (in)
USB 1
port (U38)
port (J13)
RS-485 (Advanced
USB 2
System Management
port (J15)
interconnect) ports (J5)
Switch block
(SW1)
Battery
Fan 3 (J22)
Fan 4 (J24)
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)
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