Supermicro A+ Server AS -1115CS-TNR - Page 55

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Chapter 4: Motherboard Connections
USB Ports (USB0/1)
There are a total of four USB ports supported on the motherboard. Two are located on the
front panel, and two are located on the back panel.
Front Panel USB 0/1 (2.0)
Pin Denitions
Pin# Denition Pin# Denition
1 +5V 2 +5V
3 USB7_N 4 USB8_N
5 USB7_P 6 USB8_P
7 Ground 8 Ground
9 Key 10 USB_OC#
Expansion Slots
The motherboard features several expansion slots. The table below describes each slot's
type and speed.
Expansion Slots
Name Description
LWIO Left-hand riser card slot supports PCIe 5.0 x16
RWIO Right-hand riser card slot supports PCIe 5.0 x16
AIOM1 AIOM (Advanced I/O Module) supports PCIe 5.0 x16 with NCSI
AIOM2 AIOM (Advanced I/O Module) supports PCIe 5.0 x16
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.
Chassis Intrusion (JL1)
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to the header to inform you when the chassis has been opened.
Chassis Intrusion
Pin Denitions
Pins Denition
1 Intrusion Input
2 Ground