Supermicro X6DH8-G2, Руководство пользователя

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Chapter 1: Introduction
1-13
Introduction
1-6 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.
The X6DH8-G2/X6DHE-G2 can only accommodates 24-pin ATX power sup-
plies. Although most power supplies generally meet the specifications re-
quired by the CPU, some are inadequate. You should use one that will
supply at least 400W of power connector. In addition, the 12V 4-pin power
supply (J32) - is also required to ensure adequate power supply to the
system. Also your power supply must supply 1.5A for the Ethernet ports.
NOTE: The + 12V 8-pin Aux. Power Connector (J1D1) is also required
to support Intel Xeon CPUs. Failure to provide this extra power will
result in CPU PWR Failure. See Section 2-5 for details on connect-
ing the power supply.
It is strongly recommended that you use a high quality power supply that
meets ATX power supply Specification 2.01 or above. It must also be SSI
compliant (info at http://www.ssiforum.org/). Additionally, in areas where
noisy power transmission is present, you may choose to install a line filter
to shield the computer from noise. It is recommended that you also install a
power surge protector to help avoid problems caused by power surges.
1-7 Super I/O
The disk drive adapter functions of the Super I/O chip include a floppy disk
drive controller that is compatible with industry standard 82077/765, a data
separator, write pre-compensation circuitry, decode logic, data rate selec-
tion, a clock generator, drive interface control logic and interrupt and DMA
logic. The wide range of functions integrated onto the Super I/O greatly
reduces the number of components required for interfacing with floppy disk
drives. The Super I/O supports 360 K, 720 K, 1.2 M, 1.44 M or 2.88 M disk
drives and data transfer rates of 250 Kb/s, 500 Kb/s or 1 Mb/s.It also
provides two high-speed, 16550 compatible serial communication ports
(UARTs). Each UART includes a 16-byte send/receive FIFO, a program-
mable baud rate generator, complete modem control capability and a pro-
cessor interrupt system. Both UARTs provide legacy speed with baud rate
of up to 115.2 Kbps as well as an advanced speed with baud rates of 250
K, 500 K, or 1 Mb/s, which support higher speed modems.