Supero SUPER P4DL6, Руководство пользователя

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Chapter 1: Introduction
1-19
Introduction
ATX 2.01 (or above) compliant power supply.
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 SUPER P4DL6/P4DLR+/P4DLR accommodates ATX power supplies. Al-
though most power supplies generally meet the specifications required by
the CPU, some are inadequate. You should use one that will supply at least
400W 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 LAN1 and LAN2.
NOTE: Auxiliary 12v power (PWR_SEC) is necessary to support Intel
Xeon CPUs. Failure to provide this extra power will result in the
CPUs becoming unstable after only a few minutes of operation.
See Section 2-5 for details on connecting the power supply cables.
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.
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.