12Super I/O controller. This Low Pin Count (LPC) interface provides the commonly used Super I/O functionality. The chipset supports a high-performance floppy disk controller for a 360K/720K/1.44M/ 2.88M floppy disk drive, a multi-mode parallel port, two standard compatible UARTs, a Standard Infrared (SIR), one MPU-401 UART mode compatible MIDI/game port, and a Flash ROM interface.

13Flash EEPROM. This 2Mb firmware contains the programmable BIOS program.

14Onboard LED. This onboard LED lights up if there is a standby power on the motherboard. This LED acts as a reminder to turn off the system power before plugging or unplugging devices.

15ACR slot. This Advanced Communication Riser slot is for communication and audio subsystems. The slot supports modem, audio, LAN, and Home Phoneline Networking Alliance (HPNA) or Home Networking cards.

16LAN PHY. This ICS 1893Y LAN PHY works with the South Bridge controller to fully support 10BASE-T/100BASE-TX Fast Ethernet networking protocols. (on LAN models only)

17Audio controller. This C-Media 6-channel PCI audio chip supports legacy audio and HRTF 3D positional audio functions. The chip also supports 24-bit S/PDIF In (0.5~5V) and S/PDIF Out (44.1K and 48K formats) professional digital audio interface.

(on audio models only)

18PCI slots. These six 32-bit PCI 2.2 expansion slots support bus master PCI cards like SCSI or LAN cards with 133MB/s maximum throughput.

19AGP slot. This Accelerated Graphics Port (AGP) slot supports 1.5V AGP4X mode graphics cards for 3D graphical applications.

20PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.

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

22Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices.

23Game/MIDI port. This connector supports a joystick or a game pad for playing games, and MIDI devices for playing or editing audio files. (on audio models only)

ASUS P4S333 motherboard user guide

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