1-12
X7DWN+ User's Manual
WOL capability. In addition, an onboard LAN controller can also support WOL
without any connection to the WOL header. The 3-pin WOL header is to be used
with a LAN add-on card only.
Note
: Wake-On-LAN requires an 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 X7DWN+ can accommodate 24-pin ATX power supplies. Although most
power supplies generally meet the speci
fi
cations required by the CPU, some are
inadequate. In addition, the 12V 4-pin and the 12V 8-pin power connections are
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 CPU Power Connector (JPW3) is also required to support
Intel 64-bit CPUs. Failure to provide this extra power will result in CPU PWR Failure.
See Section 2-5 for details on connecting the power supply.
It is strongly recommended that you use a high quality power supply that meets
ATX power supply Speci
fi
cation 2.02 or above. It must also be SSI compliant
(For more information, please refer to the web site at http://www.ssiforum.org/).
Additionally, in areas where noisy power transmission is present, you may choose
to install a line
fi
lter 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
fl
oppy disk drive
controller that is compatible with industry standard 82077/765, a data separator,
write pre-compensation circuitry, decode logic, data rate selection, a clock genera-
tor, 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
fl
oppy 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 com-
munication ports (UARTs). Each UART includes a 16-byte send/receive FIFO,
a programmable baud rate generator, complete modem control capability and a
processor 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.
Summary of Contents for X7DWN Plus
Page 1: ... X7DWN USER S MANUAL Revision 1 0b SUPER ...
Page 5: ...Preface Notes v ...
Page 22: ...1 14 X7DWN User s Manual Notes ...
Page 86: ...4 28 X7DWN User s Manual Notes ...
Page 88: ...A 2 X7DWN User s Manual Notes ...
Page 94: ...B 6 X7DWN User s Manual Notes ...
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