ASUS P4XP-X motherboard user guide
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ATX 12V connector. This power connector connects the 4-pin 12V plug from
the ATX 12V power supply.
ATX power connector. This 20-pin connector connects to an ATX +12V
power supply. The power supply must have at least 1A on the +5V standby
lead (+5VSB).
North bridge controller. The Intel
®
845D Memory Controller Hub (MCH)
provides the processor interface with 533/400 MHz frequency, system
memory interface at 266MHz operation, and 1.5V AGP interface that supports
AGP 2.0 specification including 4X Fast Write protocol. The MCH
interconnects to the south bridge ICH2 via the Intel
®
proprietary Hub Interface.
CPU socket. A 478-pin DIP-type, Zero Insertion Force (ZIF) socket for the
Intel
®
Pentium
®
4/Celeron processor.
DDR DIMM sockets. These 184-pin DIMM sockets support up to 2GB system
memory using unbuffered non-ECC PC2100/PC1600 DDR DIMMs.
SDR DIMM sockets. These 168-pin DIMM sockets support up to 2GB
PC133/PC100 unbuffered non-ECC DDR DIMMs.
South bridge controller. The Intel I/O Controller Hub (ICH2) is a subsystem
that integrates various I/O functions including 2-channel ATA/100 bus master
IDE controller, up to four USB ports, I/O APIC, SMBus 2.0 controller, LPC
interface, AC’97 2.2 interface, and PCI 2.2 interface. The ICH2 also contains
the necessary arbitration and buffering for efficient utilization of these
interfaces.
IDE connectors. These dual-channel bus master IDE connectors support
Ultra DMA/100/66, PIO Modes 3 & 4 IDE devices. Both the primary (blue) and
secondary (black) connectors are slotted to prevent incorrect insertion of the
IDE ribbon cable.
Floppy disk connector. This connector accommodates the provided ribbon
cable for the floppy disk drive. One side of the connector is slotted to prevent
incorrect insertion of the floppy disk cable.
Super I/O controller. The Winbond 83627HF Low Pin Count (LPC) interface
provides the commonly used Super I/O functionality plus hardware
monitoring feature. 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, standard compatible UARTs, and a Flash ROM interface.
USB 2.0 hub controller. The VIA VT6202 is a PCI USB 2.0 hub controller
for the USB 2.0 ports that support up to 480Mbps data transfer rate.
Standby 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.
PCI slots. These five 32-bit PCI 2.2 expansion slots support bus master
PCI cards like SCSI or LAN cards with 133MB/s maximum throughput.
Flash ROM. This 2Mb firmware hub contains the programmable BIOS
program.
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