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ASUS P4B266-E motherboard user guide
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Super 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.
RAID Ultra ATA/133/100/66/33 connectors. These dual-channel
connectors support Ultra ATA/133/100/66/33 hard disk drives in
RAID 0/RAID 1 configurations.
(on RAID models only)
Flash EEPROM. This 2Mb firmware contains the programmable
BIOS program.
DIP switches (DSWMUL). This 4-switch Dual Inline Package (DIP)
allows you to set the CPU core bus frequency multiple.
South bridge controller. Referred to as the Intel I/O Controller
Hub 2 (ICH2) of the Intel 845D chipset, this controller provides the
I/O subsystem that allows access to the rest of the system. The
ICH2 integrates I/O functions such as system bus interface, Ultra
ATA/100, Low Pin Count (LPC) interface, Universal Serial Bus
(USB) 1.1 interface, PCI interface, and CNR interface.
RAID controller. This Promise PDC20276 chip provides high
performance RAID 0/RAID 1 functionality.
(on RAID models only)
USB 2.0 controller. This controller supports the Universal Serial
Bus (USB) 2.0 specification for a fast connection speed of up to
480 Mbps, thus allowing more functionality and higher performance
for PC peripherals.
(optional)
CNR slot. This slot is specifically designed for the Communications
and Networking Riser (CNR) card. The CNR supports V.90 analog
modem, six-channel audio, HPNA, USB Hub, and the 10BASE-T/
100BASE-TX Ethernet networking.
Onboard 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.
Audio 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)
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