User guide

ECW-281B-D2550 Embedded System
Page 25
3.6.1 AT/ATX Power Selection Jumper
Jumper Label: JP2
Jumper Type:
2-pin header
Jumper Settings:
See Table 3-2
Jumper Location:
See Figure 3-14
The AT/ATX power selection jumper specifies the system power mode as AT or ATX.
Setting Description
Short 1-2 Use ATX power (Default)
Off Use AT power
Table 3-2: AT/ATX Power Selection Jumper Settings
Figure 3-14: AT/ATX Power Selection Jumper Location
3.6.2 Clear CMOS Jumper
Jumper Label: JP3
Jumper Type:
3-pin header
Jumper Settings:
See
Table 3-3
Jumper Location:
See
5Figure 3-15
If the ECW-281B-D2550 fails to boot due to improper BIOS settings, the clear CMOS
jumper clears the CMOS data and resets the system BIOS information. To do this, use the
jumper cap to close the pins for a few seconds then remove the jumper clip.