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Chapter 4: Advanced Motherboard Setup
Unit Identification LED
Unit identifier (UID) LEDs help identify the server in a rack. A rear UID LED indica-
tor (LED7) is located next to the UID switch on the I/O rear panel. The front control
panel UID LED is connected to pin 7 of JF1. It is combined with the Overheat/PWR
Fail/Fan Fail LED.
The UID function can be activated by the UID switch on the I/O rear panel or
through IPMI. When activated, both front and rear LEDs are lighted blue. For the
front LED, the red Overheat/PWR Fail/Fan Fail warnings take precedence over
the blue UID by default.
Press the UID switch again to turn off both.
4-10 SATA Ports
SATA Ports (I-SATA0 ~ I-SATA5)
There are six SATA 3.0 ports on the motherboard. These ports provide serial-link
signal connections, which are faster than the connections of Parallel ATA. I-SATA0
also supports SuperDOM, Supermicro proprietary SATA DOM with built-in power
connection on pin 8.
M.2 Socket
M.2 is formerly known as Next Generation Form Factor (NGFF). The connector is
designed for internal mounting devices. The motherboard deploys an M key dedi-
cated for SSD devices with the ultimate performance capability in a PCI Express
3.0 x4 interface for native PCIe SSD support. The M.2 is mux with I-SATA0 port
for legacy SATA SSD devices.
4-21
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