Contec SPI-8451-LVA - Manual (Page 25)

3. Hardware Installations
18
SPI-8451-LLVA, SPI-8452-LLVA, SPI-8451-LVA
ATX Power Control Connector: CN1
When used with an ATX-compliant power supply that supports remote power on/off, the CPU board can
turn off the system power through software control.
To enable soft-off control in software, advanced power management must be enabled in the Setup
program and in the operation system. When the system BIOS receives the correct APM command from
the operating system, the BIOS turns off power to the computer.
Table 3.3. ATX power control Connector
Pin No.
6
5
4
3
2
1
Function
PCI_PME#
GND
PSWIN
GND
PS_ON
5VSB
Housing : XHP-6 (JST)
Contact : SXH-001T-P0.6 (JST)
CN1
1 2 3 4 5 6
PS-ON
5VSB
5VSB
PS-ON
GND
CN1
6
5
4
3
2
1
ATX Power
Control signal
5VSB : Input 5V standby power from ATX power supply.
PS_ON : Output for ATX power supply On/Off control.
PSWIN : Connect power push switch. The same function as CN2-1pin (PowerBT).
PCI_PME# : Connect to PME# signal of PCI bus, this CPU board can wake up from the PCI board
which supports PME (Power Management Event) function. When you do not use this
function, please keep open.