Jumpers And Connectors - Aaeon SBC-557 Manual

Jumpers and connectors

Connectors on the board link it to external devices such as hard
disk drives, a keyboard, or floppy drives. In addition, the board
has a number of jumpers that allow you to configure your system
to suit your application.
The following tables list the function of each of the board's
jumpers and connectors.
Jumpers
Label
S1 (2~6)
S1 (1)
S2 (1~3)
S2 (4~6)
J1
J3
J4
J5, J6
J8
10 SBC-557 User Manual
Function
CPU Vcore select
Clear CMOS
CPU clock select
CPU frequency ratio select
CPU VIO select
LCD clock signal & driving voltage select
DOC address select
COM2 RS-232/422/485 select
Level 2 cache select