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Chapter 4: Motherboard Connections
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate
cable from the chassis to inform you when the chassis is opened. Refer to the table below
Chassis Intrusion
Pin Denitions
Pin# Denition
1 Intrusion Input
2 Ground
M.2 Slots
The X12DPD-A6M25 has one PCIe 3.0 x4 (SATA M.2 Slot1) and one PCIe 3.0 x1 (SATA M.2
Slot2). M.2 was formerly Next Generation Form Factor (NGFF) and serves to replace mini
The M.2 socket on the motherboard supports PCIe 4.0 X16 (64 Gb/s) SSD cards in the 2280
form factor.
I-SATA 3.0 and S-SATA 3.0 Ports
This motherboard has 8 I-SATA 3.0 ports (I-SATA0~7) and 4 S-SATA ports (S-SATA0~3).
These SATA ports, supported by the C621A chipset, provide serial-link signal connections.
NVMe Connectors
Twelve NVMe connections on six SlimSAS NVMe ports (JNVME1~6) are located on the
motherboard. Use these NVMe connections to attach high-speed PCIe storage devices.
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