Supermicro SuperServer 7089P-TR4T - AOM-X11 Opi-LBG Connections, Jumpers and Leds; How Jumpers Work

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SuperServer 7089P-TR4T User's Manual
4.2 AOM-X11OPi-LBG Connections, Jumpers and LEDs
How Jumpers Work
To modify the operation of the motherboard, jumpers can be used to choose between optional
settings. Jumpers create shorts between two pins to change the function of the connector.
Pin 1 is identied with a square solder pad on the printed circuit board. See the diagram
below for an example of jumping pins 1 and 2. Refer to the motherboard layout page for
jumper locations.
Note: On two-pin jumpers, "Closed" means the jumper is on and "Open" means the jumper
is o󰀨 the pins.
NVM Express Connections
Two NVM Express ports are located on the serverboard. JNVME ports 1/2 provide high-speed,
low-latency PCI-Exp. 3.0 x4 connections directly from the CPU to NVMe Solid State (SSD)
drives. This greatly increases SSD data-throughput performance and signicantly reduces
PCI-E latency by simplifying driver/software requirements resulted from direct PCI-E interface
from the CPU to the NVMe SSD drives.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
CMOS Clear
JBT1 is used to clear the CMOS. Instead of pins, this "jumper" consists of contact pads to
prevent the accidental clearing of the CMOS. To clear the CMOS, use a metal object such
as a small screwdriver to touch both pads at the same time to short the connection. Always
remove the AC power cord from the system before clearing the CMOS.
Note 1: For an ATX power supply, you must completely shut down the system, remove the
AC power cord, and then short JBT1 to clear the CMOS.
Note 2: Be sure to remove the onboard CMOS Battery before you short JBT1 to clear the
CMOS. Clearing the CMOS will also clear any passwords.
Do not use the PW_ON connector to clear CMOS.
JBT1 contact pads