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S
S
S
UPER
TORAGE
YSTEM 6028R-E1CR12N User's Manual
5-9
Jumper Settings
Explanation of Jumpers
To modify the operation of the
serverboard, jumpers can be used
to choose between optional settings.
Jumpers create shorts between two
pins to change the function of the con-
nector. Pin 1 is identified with a square
solder pad on the printed circuit board.
See the serverboard layout pages for
jumper locations.
Note: On a two-pin jumper, "Closed"
means the jumper is on both pins and
"Open" means the jumper is either on
only one pin or completely removed.
CMOS Clear
JBT1 is used to clear CMOS (which will also clear any passwords). Instead of pins,
this jumper consists of contact pads to prevent accidentally clearing the contents
of CMOS.
To clear CMOS,
1. First power down the system and unplug the power cord(s).
2. With the power disconnected, short the CMOS pads with a metal object such
as a small screwdriver.
3. Remove the screwdriver (or shorting device).
4. Reconnect the power cord(s) and power on the system.
Note: Do not use the PW_ON connector to clear CMOS.
VGA Enable/Disable
JPG1 allows you to enable or disable
the VGA port. The default position is on
pins 1 and 2 to enable VGA. See the
table on the right for jumper settings.
3
2
1
Connector
Pins
Jumper
3
2
1
Setting
VGA Enable/Disable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled
Pins 2-3
Disabled
5-22
LAN Enable/Disable
JPLAN1 enables or disables the Gb
LAN ports on the serverboard. See
the table on the right for jumper set-
tings. The default setting is Enabled.
2
I
C Bus to PCI-Exp. Slots
Jumpers JI
C1 and JI
C2 allow you
2
2
to connect the System Management
Bus (I
2
C) to the PCI-Express slots to
improve PCI performance. The default
setting is Enabled. Both jumpers must
be set to the same setting See the
table on the right for jumper settings.
Manufacturer's Mode
Jumper JPME2 allows the user to
flash the system firmware from a
host server in order to modify system
settings. Close this jumper to bypass
SPI flash security, and force ME into
recovery mode in order to use recov-
ery jumpers. See the table on the right
for jumper settings.
BMC Enable
Jumper JPB1 allows you to enable
the embedded the ASpeed AST 2400
BMC (Baseboard Management) Con-
troller to provide IPMI 2.0/KVM sup-
port on the serverboard. The default
setting is Enabled. See the table on
the right for jumper settings.
5-23
Chapter 5: Advanced Serverboard Setup
GLAN Enable
Jumper Settings
Jumper Setting Definition
Pins 1-2
Enabled
Pins 2-3
Disabled
I
2
C to PCI-E Slots
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled
Pins 2-3
Disabled
ME Mode Select
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Normal
Pins 2-3
Manufacture's Mode
BMC Enable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled
Pins 2-3
Disabled
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