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.

12ASUS ASIC. This chip performs several system functions that include hardware and system voltage monitoring.

13AGP slot. This Accelerated Graphics Port (AGP) slot supports 1.5V AGP4X mode graphics cards for 3D graphical applications.

14Standby 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.

15Audio CODEC. The Realtek ALC650 is a 6-channel audio CODEC that is fully compliant with AC ‘97 2.2 specifications. The ALC650 provides a playback sampling rate of 96KHz and supports DVD applications. (on audio models only)

16PCI slots. These three 32-bit PCI 2.2 expansion slots support bus master PCI cards with 133MB/s maximum throughput.

17AGP warning LED. Serving as a smart burn-out protection for the motherboard, this red LED lights up if you plug in any 3.3V AGP card into the AGP slot. When this LED is lit, there is no way you can turn on the system power even if you press the power button.

18LAN 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)

19PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.

20Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.

21RJ-45 port. This port allows connection to a Local Area Network (LAN) through a network hub. (on LAN models only)

ASUS P4B533-VM motherboard user guide

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