Asus P4B-MX User Manual

Page 15

ASUS P4B-MX motherboard user guide

1-3

CPU socket. A 478-pin surface mount, Zero Insertion Force (ZIF)
socket called mPGA478 B. This socket accommodates the Intel

Pentium

4 478/Northwood Processor with 400MHz system bus.

North bridge controller. This controller called the Intel Memory
Controller Hub (MCH) is one of the two major components of the
Intel 845 (Brookdale) chipset. The MCH along with the south bridge
Intel I/O Controller Hub 2 (ICH2) are interconnected through the
Intel proprietary Hub interface. The MCH provides the processor
interface, system memory interface, AGP interface, and Hub
Interface.

SDRAM DIMM sockets. These three 168-pin DIMM sockets
support up to 3GB using unbuffered ECC or non-ECC PC100/133
SDRAM DIMMs.

Super I/O chipset. This Low Pin Count (LPC) chipset combines
the commonly used Super I/O functionality and system hardware
monitoring capability. The chipset incorporates Fan Speed Control
Monitor (FSCM), event wake-up feature, floppy disk controller,
keyboard/mouse controller, a parallel port, two enhanced serial
ports (one with infrared support), watchdog timer, and a MIDI
interface compatible with MPU-401 UART mode.

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).

IDE connectors. These dual-channel bus master IDE connectors
support up to four 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.

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

DIP switches. This 10-switch Dual Inline Package (DIP) allows you
to set the CPU external frequency.