Supermicro SuperServer SYS-511R-M User Manual page 52

Inlet Temperature Sensor
JSEN1 is the system front inlet temperature sensor. It represents the ambient air temperature
entering the system. The equivalent temperature sensor retrievable by the onboard BMC is
RT0.
M.2 Slot
This motherboard has two M.2 slots. M.2 was formerly known as Next Generation Form Factor
(NGFF) and serves to replace mini PCIe. M.2 allows for a variety of card sizes, increased
functionality, and spatial efficiency. The M.2 slot on the motherboard supports PCIe 4.0 x4
SSD cards in the 2280 and 22110 form factors.
Power SMB (I²C) Header
The Power System Management Bus (I²C) connector JPI²C1 monitors the power supply, fan,
and system temperatures. Refer to the table below for pin definitions.
Chapter 4: Motherboard Connections
Inlet Sensor Header
Pin Definitions
Pin# Definition
1 Data
2 Ground
3 CLK
4 P3V3_STBY
Power SMB Header
Pin Definitions
Pin# Definition
1 Clock
2 Data
3 PMBUS_Alert
4 Ground
5 +3.3 V
52