Advantech Industrial Mini-ITX Motherboard with DDR2/Dual GbE/PCI AIMB-221 - Manual (Page 34)

AIMB-221 User Manual 24
2.5 ATX/AT Mode Selector (JPSON1)
Table 2.2: ATX/AT Mode selector (PSON1)
Function Jumper Setting
AT Mode
ATX Mode
JPSON1
pin.1 ATX mode
pin.2 PS_SELECT
pin.3 AT mode
1
1-2 closed
1
2-3 closed