Sapphire IPC-AM3DD785G Guia De Instalacion página 45

(1) Power Connector (20-pin block): ATXPOWER
ATX Power Supply connector: This is a new defined 20-pins connector that
usually comes with ATX case. The ATX Power Supply allows using soft power
on momentary switch that connect from the front panel switch to 2-pins Power
On jumper pole on the motherboard. When the power switch on the back of the
ATX power supply turned on, the full power will not come into the system board
until the front panel switch is momentarily pressed. Press this switch again will
turn off the power to the system board.
** We recommend that you use an ATX 12V Specification 2.0-compliant power
supply unit (PSU) with a minimum of 150W power rating. This type has 20-pin
and 4-pin power plugs.
** If you intend to use a PSU with 20-pin and 4-pin power plugs, make sure that the
20-pin power plug can provide at least 10A on +12V and the power supply unit
has a minimum power rating of 150W. The system may become unstable or may
not boot up if the power is inadequate.
(2)ATX 12V Power Connector (4-pin block) : ATX_CPU
This is a new defined 4-pins connector that usually comes with ATX Power
Supply The ATX Power Supply which fully supports Socket AM2/AM2+/AM3
processor must including this connector for support extra 12V voltage to
maintain system power consumption for CPU. Without this connector might
cause system unbootable because the power supply can not provide sufficient
current for system.
Connectors, Headers