Supermicro SuperServer SYS-1029U-TN12RV User Manual page 60

SuperServer 1029U-TN12RV User's Manual
Unit Identifier Switch/UID LED Indicator
A rear Unit Identifier (UID) switch (JUIDB2) and an rear LED Indicator (LED1) are located
on the rear side of the system. The front UID LED is located on Pin 7 of the Front Control
Panel (JF1). When you press the UID switch, both front and rear UID LED indicators will be
turned on. Press the UID switch again to turn off the LEDs. The UID Indicators provide easy
identification of a system unit that may be in need of service.
Note: UID can also be triggered via IPMI on the motherboard. For more information on IPMI,
please refer to the IPMI User's Guide posted on our website at http://www.supermicro.com.
UID Switch
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
NVM Express Connections
Four NVM Express ports are located on the motherboard. These NVM ports provide PCI-Exp.
3.0 x4 connections. P1_NVMe0 and P1_NVMe1 are supported by CPU1. P2_NVMe0 and
P1_NVMe1 are supported by CPU2. The NVM Express ports provide high-speed low-latency
connections directly from the CPU to NVMe Solid State (SSD) drives. This greatly increases
SSD data-throughput performance and significantly reduces PCI-E latency by simplifying
driver/software requirements resulting from direct PCI-E interface from the CPU to the NVMe
SSD drives.
Note: When installing an NVMe device on a motherboard, please be sure to connect the first
NVMe port (P1_NVMe0) first for your system to work properly.
UID LED
Pin Definitions
Color
Blue: On
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Status
Unit Identified