IBM 866011U - Netfinity 5500 - 8660, Hardware Maintenance Manual

Page: 265 / 402

System board jumpers
Table 13 describes the jumpers on the system board. The
numbers in the table correspond to the highlighted
numbers on the illustration in “System board component
locations” on page 255.
Note
Turn off the server, and disconnect the power cords
before moving any jumpers.
Table 13. System Board Jumpers
Jumper Name Description
.8/
J11 Disable
RAID controller
The default position is Enabled (jumper on
pins 1 and 2). Move the the jumper to pins 2
and 3 to disable the RAID controller.
.9/
J45 Reserved The default position is a jumper on pins 2 and
3.
.1ð/
J32 Power on
control
The default position is normal operation
(jumper on pins 1 and 2). Moving the jumper
to pins 2 and 3 allows the power supply to be
turned on without a control panel or system
management processor.
.11/
J25 Reserved The default position is a jumper on pins 1 and
2.
.12/
J9 Reserved The default position is a jumper on pins 1 and
2.
.19/
J34 Reserved The default is no jumper installed on J34.
.2ð/
J29 Reserved The default is no jumper installed on J29.
.21/
J26 Reserved The default is a jumper on pins 2 and 3.
.23/
J51 System
reset
In normal operation, there is no jumper on
J51. Installing a jumper on J51 resets the
system logic.
.26/
J24 Power on
password override
Changing the position of this jumper bypasses
the power-on password check if the jumper
has been moved since the server was last
powered on. You do not need to move the
jumper back to the default position after the
password is overridden.
Changing the position of this jumper does not
affect the administrator password check if an
administrator password is set.
.27/
J30 Flash
ROM page swap
The default position is a jumper installed on
pins 2 and 3. Changing the position of this
jumper will change which of the two pages of
Flash ROM is used when the system is
started.
.45/
J5 Disable
Ethernet controller
The default position is Enabled (jumper on
pins 1 and 2). Move the the jumper to pins 2
and 3 to disable the Ethernet controller.
.46/
J14 Disable
video controller
The default position is Enabled (jumper on
pins 1 and 2). Move the the jumper to pins 2
and 3 to disable the video controller.
Netfinity 5500 - Type 8660
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