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Chapter 4: Motherboard Connections
4.5 PCIe 4.0 Slots
PCI-Express 4.0 x16
There are two PCIe 4.0 x16 slots on the motherboard. Slot 1 and Slot 2 are supported through
the riser cards. Refer to the layout in Chapter 1 for their locations.
PCI-Express 4.0 x8
A PCIe 4.0 x8 slot is located at SXB1. SXB1 is also used for SATA0~5. Refer to the layout
in Chapter 1 for their location.
PCI-Express 4.0 x16
A PCIe 4.0 x16 slot is located at SXB2. Refer to the layout in Chapter 1 for the location.
Powered SATA DOM (SuperDOM)
A SATA DOM (Device-on-Disk) is located at SATA6/7 on the motherboard. SATA6/7 are used
with a Supermicro SuperDOM, which is a yellow SATA DOM connector with a power pin built
in. No external power supply is needed. Supermicro SuperDOM is backward compatible with
a regular SATA HDD or SATA DOM that requires an external power supply.
SIOM Networking Slot
There is one SIOM (Super I/O Module) networking slot (PCIe 4.0 x16 + x1) on the motherboard.
See the layout in Chapter 1 for the location.