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Chapter 4: Motherboard Connections
SATA Ports and M.2
The A2SDi-8C/8C+/12C/16C-HLN4F has twelve SATA3.0 ports (4 via ports and 8 via two
miniSAS HD header).
The A2SDi-2C/4C-HLN4F supports up to eight SATA3.0 ports (4 via ports and 4 via miniSAS
HD header). Using the Flexible I/O feature, a user can select a total of eight SATA ports and/
or PCIE lanes on the expansion slot.
Unit Identier Switch/UID LED Indicator
switch is located at UID, which is next to the VGA port on the back panel. The UID LED
(UIDLED1) is located next to the UID switch. When you press the UID switch, the UID LED
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 Denitions
Pin# Denition
1 Ground
2 Ground
3 Button In
4 Button In
UID LED
Pin Denitions
Color Status
Blue: On
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