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Chapter 1: Introduction
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. In areas
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.
This motherboard accommodates 24-pin ATX power supplies. Although most power supplies
generally meet the specifications required by the CPU, some are inadequate. In addition, the
12V 8-pin power connector located at JPW2 is always required to ensure adequate power
supply to the CPU.
Note 1:
The X11SSV-Q motherboard alternatively supports an 8-pin 12V DC input
power supply at JPW2 for embedded applications. The 12V DC input is limited to 30A
(15A if only installed with 4-pin power cable) by design. It provides up to 360W (180W
if only 4-pin connected) power input to the motherboard. Please keep the on board
power usage within the power limits specified above. Over current power usage may
cause damage to the motherboard.
Note 2:
Please connect both the 8-pin DC power at JPW2 and JPW1 to make sure the
CPU receives enough power for normal operation when using the ATX power supply.
1.7 Super I/O
The Super I/O monitors several critical parameters in PC hardware, including power supply
voltages, fan speeds, and temperatures. In terms of temperature monitoring, it adopts the
Current Mode (dual current source) and thermistor sensor approach.
The Super I/O provides functions that comply with ACPI (Advanced Configuration and Power
Interface), which includes support of legacy and ACPI power management through a SMI
or SCI function pin. It also features auto power management to reduce power consumption.
