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Chapter 3: Motherboard Connections
Chapter 3
Motherboard Connections
This chapter describes the connections on the motherboard and provides pinout definitions.
Note that depending on how the system is configured, not all connections are required. The
LEDs on the motherboard are also described here. A motherboard layout indicating component
locations may be found in
Chapter
1. More detail can be found in the
Motherboard
Manual.
Please review the Safety Precautions in
Appendix B
before installing or removing components.
3.1 Headers and Connectors
Power Connector
The PWR2 connector provides power to the motherboard through the chassis backplane.
Storage Drive Power Connector
The HDD2 PWR connector provides power to your system and the storage drives on the
AOM-SB1-SATA31 riser card.
Storage Drive Connector
Two connectors, HDD0 and HDD1, provide SATA 6G and NVMe connections (with SC2 for
Mezzanine daughter card support).
Mezzanine Card Connectors
The mezzanine card connectors, located at MEZZ1 and MEZZ2, support two PCIe Gen 5
x16 riser cards. Install the riser cards to support mezzanine card.
LAN Connector
A 25G midplane is located at MP1 on the rear side of the system.
I-SATA Connector
A SATA 3.0 header, located at I-SATA1, is supported by Intel PCH SATA 3.0. It requires the
proper SATA cable for use.
M.2 Slot and Standoff
The motherboard has one M.2 slot at JM2-1. It supports PCIe 5.0 x4 M.2 NVMe SSDs in
the 2280 form factor. Mounting the M.2 SSD uses the standoff mounting hole, MH-SRW1.
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Troubleshooting
