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FatTwin AS -F1114S-RNTR User's Manual
Expansion Slots
The motherboard features two expansion slots (JSXB1 and JSXB2). These are both PCIe 4.0
x16 slots (JSXB1 is for a right hand riser card, JSXB2 is for a left hand riser card).
Onboard Battery (BT1)
The onboard back up battery is located at BT1. The onboard battery provides backup power
to the on chip CMOS, which stores the BIOS' setup information. It also provides power to
the Real Time Clock (RTC) to keep it running.
IPMB System Management Bus Header
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system.
IPMB Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
Front Control Panel
JF1 contains header pins for various buttons and indicators that are normally located on a
control panel at the front of the chassis. This connector is designed specifically for use with
Supermicro chassis and connects to the motherboard with Supermicro cable p/n CBL-OTHR-
0022L. See the figure below for the pin definitions of JF1.
Figure 4-1. JF1 Pin Definitions
Ground
Power Supply On (Signal)
Power LED On
Red LED On
Ground
Ground
+12V Enable
Power Supply/PMBus Alert
SCL Backplane Power
SDA Backplane Power
Power Button (Signal)
UID Switch (Signal)
LAN Link Activity LED
UID LED On (Signal)
(Vcc)
(Vcc)
(Vcc)
5V Standby Power
Key
Key
1 2
19 20
