10South 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, and PCI 2.2 interface. The ICH4 also contains the necessary arbitration and buffering for efficient utilization of these interfaces.

11Serial ATA connectors. These two 7-pin connectors accommodate the thin cables for Serial ATA devices.

12Speech controller. This Winbond speech controller supports the ASUS POST Reporter™ for configurable vocal POST alerts.

13Flash ROM. This 4Mb firmware contains the programmable BIOS program.

14RAID IDE/Serial ATA controller. The Promise® PDC20376 RAID IDE and Serial ATA controller provides high performance RAID 0/RAID 1 functionality and supports the Serial ATA solution.

15Standby power LED. This 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.

16ASUS ASIC. This chip performs multiple system functions that include hardware and system voltage monitoring, IRQ routing, among others.

17Super 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), and a Flash ROM interface.

18IEEE 1394 controller. The VIA VT6307 controller chipset supports two low power IEEE 1394 connectors to allow 100Mbps, 200Mbps, and 400Mbps data transfers between the PCI bus and the 1394 bus.

19PCI 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. The ASUS proprietary BlueMagic PCI slot (blue slot) supports future ASUS function cards compliant to PCI specification.

20Audio CODEC. The ADI AD1980 is an AC’97 CODEC that allows 6-channel audio playback. The audio CODEC provides six DAC channels for 5.1 surround sound, S/PDIF output, AUX and Line In stereo inputs, integrated headphone amplifier, greater than 90dB dynamic range, and stereo Mic PREAMP support.

(on audio models only)

ASUS P4PE motherboard user guide

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