Headers And Connectors - Supermicro SuperServer SYS-121C-TN10R User Manual

4.2 Headers and Connectors

Fan Headers
There are six fan headers (FAN1-FAN6) on the motherboard. These are 4-pin fan headers,
although pins 1-3 are backward compatible with traditional 3-pin fans. Four-pin fans allow
fan speeds to be controlled by Thermal Management in the BMC. When using the Thermal
Management setting, use all 3-pin fans or all 4-pin fans.
TPM Header
The JTPM1 header is used to connect a Trusted Platform Module (TPM)/Port 80, which
is available from Supermicro. A TPM/Port 80 connector is a security device that supports
encryption and authentication in hard drives. It allows the motherboard to deny access if the
TPM associated with the storage drive is not installed in the system. For more information
on the TPM: www.supermicro.com/manuals/other/TPM.pd.
Standby Power
The 5V Standby Power header is located at JSTBY1. You must have a card with a Standby
Power connector and a cable to use this feature.
BMC External I C Header
2
A System Management Bus 6-pin header for BMC is located at JIPMB1. Connect a cable to
this header to use the IPMB I
Fan Header
Pin Definitions
Pin# Definition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
4 PWM Control
Trusted Platform Module/Port 80 Header
Pin Definitions
Pin# Definition Pin#
1 P3V3 2
3 PCI-E_RESET_N# 4
5 SPI_PCH_CLK# 6
7 SPI_PCH_MOSI 8
9 JTPM1_P3V3A 10
Standby Power
Pin Definitions
Pin# Definition
1 +5V Standby
2 Ground
3 No Connection
C connection on your system.
2
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Chapter 4: Motherboard Connections
Definition
SPI_TPM_CS_N
SPI_PCH_MISO
Ground
N/A
IRQ_TPM_SPIN_N