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Chapter 4: Motherboard Connections
SuperServer 5019S-MT User's Manual
SMBus to PCI Slots
Jumpers JI
2
C1 and JI
2
C2 allow you to connect the System Management Bus (I
2
C) to the
PCI-E/PCI slots.
Both jumpers must be set to the same setting
(JI
2
C1 controls the data and
JI
2
C2 controls the clock). The default setting is Disabled.
SMBus to PCI Slots
Jumper Settings
JI
2
C1 Setting
JI
2
C2 Setting
Definition
Pins 1-2
Pins 1-2
Enabled
Pins 2-3
Pins 2-3
Disabled
BMC Enabled
JPB1 allows you to enable or disable the BMC (Baseboard Management Control) chip and
the onboard IPMI connection. This jumper is used together with the IPMI settings in the BIOS.
After the BMC is disabled, IPMI health monitoring and remote management functions are no
longer supported. The default setting is Normal.
BMC Enable
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Normal
Pins 2-3
Disable BMC
Manufacturing Mode Select
Close JPME2 to bypass SPI flash security and force the system to use the Manufacturing
Mode, which will allow you to flash the system firmware from a host server to modify system
settings. The default setting is Normal.
Manufacturing Mode
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Normal
Pins 2-3
Manufacturing Mode
VRM
Jumper Settings
Jumper Setting
Definition
Pins 1-2
BMC
Pins 2-3
PCH
I
2
C Bus for VRM
Jumpers JVRM1 and JVRM2 allow the BMC or the PCH to access CPU and memory VRM
controllers. The default setting for both jumpers is BMC.
LANCONF Flash
Jumper Settings
Jumper Setting
Definition
Pins 1-2
Enabled
Pins 2-3
Disabled
LANCONF Flash
Use the JPCK1 jumper to flash the LAN EEPROM. The default setting is Disabled.
LAN1/2 LEDs
The Ethernet ports (located beside the VGA port) have two LEDs. On each port, one LED
indicates activity when flashing while the other LED may be green, amber or off to indicate
the speed of the connection.
LAN1/2 LED
(Connection Speed
Indicator)
LED Color
Definition
Off
100 Mb/s
Amber
1 Gb/s
Green
10 Gb/s
Dedicated IPMI LAN LEDs
A dedicated IPMI LAN is also included on the motherboard. The amber LED on the right of
the IPMI LAN port indicates activity, while the green LED on the left indicates the speed of
the connection. See the table below for more information.
IPMI LAN LEDs
Color
Status
Definition
Off
Off
No
Connection
Green:
Solid
Link/Speed
(Left)
100 Mb/s
Amber
Blinking
Activity
(Right)
Active
IPMI LAN
Activity LED
Link LED
LAN 1/LAN 2
IPMI LAN
(X8ST3-F)
4.5 LED Indicators