User's and BIOS Manual (1.1a)

1-12
X7DA8+/X7DAE+ User's Manual
tracking can occur after hours and on weekends so that daily LAN traf c is kept
to a minimum and users are not interrupted. The motherboard has a 3-pin header
(WOL) to connect to the 3-pin header on a Network Interface Card (NIC) that has
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 X7DA8+/X7DAE+ can only accommodate 24-pin ATX power supplies. Although
most power supplies generally meet the speci cations required by the CPU, some
are inadequate. You should use one that will supply at least 500W of power con-
nector. In addition, the 12V 4-pin power and the 12V 8-pin are also required for
adequate power supply to the system. Also your power supply must supply 1.5A
for the Ethernet ports.
It is strongly recommended that you use a high quality power supply that meets ATX
power supply Speci cation 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 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 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 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 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 communication ports
(UARTs). Each UART includes a 16-byte send/receive FIFO. 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.
The Super I/O supports one PC-compatible printer port (SPP), Bi-directional Printer
Port (BPP) , Enhanced Parallel Port (EPP) or Extended Capabilities Port (ECP).