Power Supply; Serial Port - Supermicro X13SEFR-A User Manual

1.5 Power Supply

As with all computer products, a stable power source is necessary for proper and reliable
operation. It is even more important for processors that have high CPU clock rates where
noisy power transmission is present.
The X13SEFR-A motherboard has one power input connector (JPWRMAX1) that can be
connected to a power distribution board (PDB) via a power adaptor to supply power to the
motherboard. In addition, three 4-pin power outlet connectors (JPW1, JPW2, JPW3) are used
for system HDD/SATA devices.
Warning! To avoid damaging the power supply or the motherboard, be sure to use the
JPWRMAX1 power connector for power input to the motherboard only, and use the
4-pin power connectors for power output to system HDD/SATA devices only. Failure in
doing so may void the manufacturer warranty on your power supply and motherboard.

1.6 Serial Port

The X13SEFR-A motherboard supports one serial communication connection. COM1 Port
1 can be used for input/output. The UART provides legacy speeds with a baud rate of up to
115.2 Kbps as well as an advanced speed with baud rates of 250K, 500K, or 1Mb/s, which
support high-speed serial communication devices.
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Chapter 1: Introduction