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2: Key Features & Components
User’s Manual
2•3
Motherboard Layout Key
Component Function
CPU1 mPGA478 CPU socket
JATXPWR2, JATXPWR1 Power connectors for ATX power supply
DDR1, DDR2 DIMM memory sockets for DDR SDRAM modules
AGP1 AGP connector for 1.5V AGP 4X display card
PCI 1 – 3 32-bit PCI expansion slots
JUSB3 Onboard internal USB 2.0 port
Connectors
IDE1, IDE2 IDE drive connectors
FDD1 Floppy disk drive connector
JCFAN1 CPU cooling fan power connector
JSFAN1, JSFAN2 Housing cooling fan connectors
JCOM2 COM2 port bracket connector
JGAME1 Game/MIDI port bracket connector
JP1 IR port module connector
J1 Optional 6-channel audio port bracket connector
JCDIN1 CD–In CD-ROM drive audio-in connector
JAUX1 AUX – auxiliary audio-in connector
JPANEL1 Housing front panel feature connector
Smart Panel Connectors
JAUDIO1 Smart Panel audio feature connector
U23 Smart Card Reader connector
JP2 Memory Stick/Secure Digital card reader connector
JUSB1 USB 2.0 ports 5 & 6 connector
Jumpers
JCMOS1 Clear CMOS jumper
JDIMMVOLT1 DDR voltage jumper
JUSBV1 USB Standby voltage
JPSKMV1 PS/2 Standby voltage
Rear panel I/O ports See figure on next page