10Flash EEPROM. This 2Mb firmware contains the programmable BIOS program.

11South bridge controller. The fourth-generation Intel I/O Controller Hub (ICH4) is a subsystem that integrates various I/O functions including 2-channel ATA/100 bus master IDE controller, up to six USB 2.0/1.1 ports, I/O APIC, SMBus 2.0 controller, LPC interface, AC’97 2.2 interface, PCI 2.2 interface, and integrated LAN controller. The ICH4 also contains the necessary arbitration and buffering for efficient utilization of these interfaces.

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ASUS ASIC. This chip performs several system functions that include hardware and system voltage monitoring.

Standby power LED. This green LED lights up if there is a standby power on the motherboard. The LED acts as a reminder to turn off the system power before plugging or unplugging devices.

14Audio CODEC. The C-Media CMI9738 is a 4-channel audio CODEC that is fully compliant with AC ‘97 2.2 specifications. (on audio models only)

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PCI slots. These three 32-bit PCI 2.2 expansion slots support bus master PCI cards with 133MB/s maximum throughput.

LAN PHY. This Intel 82562ET LAN PHY works with the integrated MAC in the South Bridge (ICH4) to fully support 10BASE-T/ 100BASE-TX Ethernet networking. (on LAN models only)

17PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.

18Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.

19RJ-45 port. This port allows connection to a Local Area Network (LAN) through a network hub. (on LAN models only)

20Line In jack. This Line In (light blue) jack connects a tape player or other audio sources. (on audio models only)

21Line Out jack. This Line Out (lime) jack connects a headphone or a speaker. (on audio models only)

22Microphone jack. This Mic (pink) jack connects a microphone. (on audio models only)

ASUS P4BGL-VM motherboard user guide

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