System Board; System Board Options Connectors - IBM eServer 135 xSeries User Reference Manual

System board

System board options connectors

The illustrations in the following sections show the components on the system board.
The following illustration identifies the connectors on the system board.
Management port
(J53)
Serial port A
(J52)
Serial port B
(J51)
BIOS code
page jumper
(J19)
DIMM 4
(J47)
DIMM 3
(J41)
DIMM 2
(J34)
DIMM 1
(J32)
Microprocessor 2
(U79)
Microprocessor 1
(U47)
Operator
information
panel (J43)
Fan 6 (J38)
System board jumper blocks
Any jumper blocks on the system board that are not shown in the illustration are
reserved. For typical operation of the system, no jumpers should be installed on any
of the jumper blocks. See "Recovering BIOS" on page 88 for information about the
Flash ROM page-swap jumper.
Console (in)
port (U38)
USB 2
port (J15)
Console (out)
port (U61)
Switch block
(SW1)
Battery
Fan 5 (J35) Fan 3 (J22)
Fan 4 (J24)
USB 1
port (J13)
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)
Chapter 5. Installing options
35