Acer AR320 F2 Service Manual page 32

27 USB2 Front USB2 cable connector
29 BIOS_RCVR BIOS recovery jumper
1-2 Close: Normal operation.
(Default)
2-3 Close: BIOS recovery
mode.
31 BAT Battery
33 BMC_ROM1 BMC ROM
35 U8 BMC controller
28 U56
30 USB1
32 COM2
34 PCI16X
28
Intel C204 PCH chipset
Front USB 1 cable connector
Connects to serial port
PCI-E x16 slot