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Chapter 3: Motherboard Connections
PCIe M.2 Connector (M.2-M1/M2)
The PCIe M.2 (M.2-M1/M2) connector is for devices such as memory cards, wireless adapters,
etc. These devices must conform to the PCIe M.2 specifications (formerly known as NGFF).
This particular PCIe M.2 supports M-Key (PCIe x4) storage card.
TPM Header/Port 80 Connector (TPM Port)
The JTPM1 header is used to connect a Trusted Platform Module (TPM), which is available from
a third-party vendor. A TPM is a security device that supports encryption and authentication in
hard drives. It enables the motherboard to deny access if the TPM associated with the hard
drive is not installed in the system.
Please go to the following link for more information on TPM:
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Trusted Platform Module Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
LCLK
2
GND
3
LFRAME#
4
Key
5
LRESET#
6
N/C
7
LAD3
8
LAD2
9
3.3V
10
LAD1
11
LAD0
12
GND
13
SMB_CLK (optional)
14
SMB_DAT (optional)
15
P3V3_STBY
16
SERIRQ
17
GND
18
LP_CLKRUN (optional)
19
LPC_PD (optional)
20
LPC_DRQ (optional)
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.
NCSI Header (JNCSI1)
The NCSI (Network Controller Sideband Interface) header is located at JNCSI1. This header
is an interface used to connect the BMC (Baseboard Management Controller) to a set of
Network Interface Controllers to enable out-of-band remote manageability.
