4 clear cmos jumper, Figure 2-8: cf card setup jumper location, Table 2-4: cf card setup jumper settings – IEI Integration AFL-W19A_17D_W15A-N270 v3.00 User Manual
Page 30: See table 2-4, See figure 2-8, Table 2-4

AFL-W19A/17D/W15A-N270 Panel PC
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Closed Master
Table 2-4: CF Card Setup Jumper Settings
The CF Card Setup jumper location is shown in Figure 2-8.
Figure 2-8: CF Card Setup Jumper Location
2.5.4 Clear CMOS Jumper
Jumper Label:
J_CMOS1
Jumper Type:
3-pin header
Jumper Settings:
Jumper Location:
If the AFL-W19A/17D/W15A-N270 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.
If the “CMOS Settings Wrong” message is displayed during the boot up process, the fault
may be corrected by pressing the F1 to enter the CMOS Setup menu. Do one of the
following:
Enter the correct CMOS setting
Load Optimal Defaults
Load Failsafe Defaults.