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55 Chapter 5
Item Description Item Description
CPU_FAN1 CPU fan header BIOS_SEL1 SPI & FWH BIOS select
COM2 COM header 2 PWR2 Four-pin power connector
J11 Acer special requirement KB/MS1 Keyboard & mouse PS2
port
J10 Acer special requirement COM1 COM port
PWR1 24-pin power connector PRT Printer port
FLOPPY1 Floppy connector 1 VGA VGA port
SYS_FAN1_1 System fan header 1_1
(three-pin)
1394_USB1 1394 and USB*2 port
CLR_CMOS Clear CMOS NIC_USB LAN and USB*2 port
OBR One button recovery Audio Audio port
INTR1 Chassis intruder PCI-E1 PCI-Express x16 connector
FP1 Front panel switch/LED BAT1 Battery connector
TPM Trusted platform module
interface
PCI-E2 PCI-Express x1 connector
SATA_5 SATA data transfer
connector 5
F_1394 Front 1394 header
SATA_6 SATA data transfer
connector 6
PCI1, PCI2 PCI connector
SATA_3 SATA data transfer
connector 3
U25 FWH BIOS socket
SATA_4 SATA data transfer
connector 4
U19 ICH8 series south bridge
SATA_1 SATA data transfer
connector 1
U13 965 series north bridge
SATA_2 SATA data transfer
connector 2
U10 LGA 775 CPU socket
F_USB3 Front panel USB header 3 DIMM1,
DIMM2,
DIMM3,
DIMM4
DDR2 memory connector
F_USB2 Front panel USB header 2 IR Infrared function header
F_USB1 Front panel USB header 1 FLOPPY1 Floppy connector
F_AUDIO1 Audio Aux Input BUZ1 Buzzer