SUPER MICRO Computer X6QTE+ - Manual (Page 21)

Chapter 1: Introduction
1-15
Main Switch Override Mechanism
When an ATX power supply is used, the power button can function as a system
suspend button to make the system enter a SoftOff state. The monitor will be
suspended, and the hard drive will spin down. Pressing the power button again
will cause the whole system to wake-up. During the SoftOff state, the ATX power
supply provides power to keep the required circuitry in the system alive. In case
the system malfunctions and you want to turn off the power, just press and hold the
power button for 4 seconds. This option can be set in the Power Button Instant-Off
feature under the Advanced Chipset Section in the BIOS Setup.
External Modem Ring-On (WOR)
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, updates 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.
1-6 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 X6QT8/X6QTE+ can only accommodate ATX 24-pin and 8-pin power supplies.
Although most power supplies generally meet the specifi cations required by the
CPU, some are inadequate. Your power supply must have one 24-pin and two
12V 8-pin connectors and should supply at least 650W of power; an even higher
wattage power supply is recommended for high-load confi gurations. Also, your
power must supply 1.5A for the Ethernet ports.
*Note: Two additional 12V 8-pin power connectors (JPW2/JPW3) are required for
Intel Xeon MP CPUs. Failure to provide this extra power to the CPU may make it
unstable within a few minutes of operation. See Section 2-6 for details on power
connectors.