Power Supply - Supermicro X7DWE User Manual

X7DWE User's Manual
External Modem Ring-On
Wake-up events can be triggered by a device such as the external modem ringing
when the system is in the SoftOff state. Note that external modem ring-on can
only be used with an ATX 2.01 (or above) compliant power supply.
Wake-On-LAN (WOL)
Wake-On-LAN is defi ned as the ability of a management application to remotely
power up a computer that is powered off. Remote PC setup, up-dates and asset
tracking can occur after hours and on weekends so that daily LAN traffi 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.
1-7

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 X7DWE can accommodate 24-pin ATX power supplies. Although most power
supplies generally meet the specifi cations required by the CPU, some are inad-
equate. In addition, 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 (JPW2) 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 Specifi cation 2.02 or above. It must also be SSI compliant (For more
information, please refer to the website 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.
1-12