Switch Settings; Auto Power On And Restore Bios Optimal Defaults (Sw1); Pci-Express Bifurcation Setting (Sw2) - AXIOMTEK CEM520 User Manual

CEM520 COM Express
2.4

Switch Settings

Properly configure switch settings on the CEM520 to meet your application purpose. Below
you can find a summary table of all switches and onboard default settings.
Once the default switch setting needs to be changed, please do it under power-off
condition.
Note
Switch Description
Auto Power On
Default: Disable
SW1
Restore BIOS Optimal Defaults
Default: Normal Operation
PCI-Express Bifurcation Setting
SW2
Default: One x16 PCI-Express
2.4.1

Auto Power On and Restore BIOS Optimal Defaults (SW1)

If dip1 of SW1 (SW1-1) is set to ON position, the system will be automatically power on
without pressing soft power button. If this switch is set to OFF position, it is necessary to
manually press soft power button to power on the system.
The dip2 of SW1 (SW1-2) is for restoring BIOS default status. Flip SW1-2 to ON position
for a few seconds then flip it back to OFF position. Doing this procedure can restore
BIOS optimal defaults.
Function
Disable auto power on (Default)
Enable auto power on
Normal operation (Default)
Restore BIOS optimal defaults
2.4.2

PCI-Express Bifurcation Setting (SW2)

The SW2 is for PCI-Express bifurcation setting. See table below for detailed information.
Function
Select one x8 and two x4 PCI-Express
Select two x8 PCI-Express
Reserved
Select one x16 PCI-Express (Default)
10
TM
Type 6 Basic Module
Setting
SW1-1 OFF
SW1-1 ON
SW1-2 OFF
SW1-2 ON
Setting
SW2-1 ON, SW2-2 ON
SW2-1 ON, SW2-2 OFF
SW2-1 OFF, SW2-2 ON
SW2-1 OFF, SW2-2 OFF
Setting
SW1-1 OFF
SW1-2 OFF
SW1-1 OFF, SW1-2 OFF
Module and Pin Assignments