Supero SUPER P4QH6, User Manual

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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 CPU clock rates of 1 GHz and above.
The SUPER P4QH8/P4QH6 accommodates ATX power supplies. Although
most power supplies generally meet the specifications required by the CPU,
some are inadequate. Your power supply must have 24-pin, 8-pin and 4-
pin power connectors and should supply at least 600W of power - an even
higher wattage power supply is recommended for high-load configurations.
Also your power supply must provide a +5V standby voltage that supplies
at least 720 mA of current. In addition, 1.5A is needed for the LAN port.
It is strongly recommended that you use a high quality power supply that
meets ATX power supply Specification 2.02 or above. Additionally, in ar-
eas 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. For the P4QH8/P4QH6, we recommend the Supermicro
SC862 4U chassis (CSE-0035) and the SC850 P4 power supply (PWS-
0039), which provides 700 watts of continuous power.
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), one of which supports serial infrared communication. Each UART
includes a 16-byte send/receive FIFO, a programmable baud rate generator,
complete modem control capability and a processor interrupt system.
Each UART includes a 16-byte send/receive FIFO, a programmable baud
rate generator, complete modem control capability and a processor inter-
rupt 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.