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Chapter 2: Installation
NVM Express Connections
Two NVM Express ports are located on the serverboard (from CPU2). These ports provide
high-speed, low-latency PCIe 4.0 x4 connections directly from the CPU to NVMe Solid State
Drives (SSD). This greatly increases SSD data-throughput performance and significantly
reduces PCIe latency by simplifying driver/software requirements resulted from direct PCIe
interface from the CPU to the NVMe SSD drives.
Fan Headers
There are eight fan headers on the motherboard. These are 4-pin fan headers; pins 1-3 are
backward compatible with traditional 3-pin fans. The onboard fan speeds are controlled by
Fan Mode in the BMC. When using Fan Mode setting, please use all 4-pin fans.
Fan Header
Pin Definitions
Pin#
Definition
1
Ground (Black)
2
+12V (Red)
3
Tachometer (Yellow)
4
PWM control (Blue)
IPMB System Management Bus Header
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system.
IPMB Header
Pin Definitions
Pin#
Definition
1
Data
2
Ground
3
Clock
4
No Connection
