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ASUS P4B533-VM motherboard user guide
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Flash EEPROM. This 2Mb firmware contains the programmable
BIOS program.
South 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, PCI 2.2 interface, and integrated LAN
controller. The ICH4 also contains the necessary arbitration and
buffering for efficient utilization of these interfaces.
ASUS ASIC. This chip performs several system functions that
include hardware and system voltage monitoring.
AGP slot. This Accelerated Graphics Port (AGP) slot supports 1.5V
AGP4X mode graphics cards for 3D graphical applications.
Standby power LED. This green LED lights up if there is a standby
power on the motherboard. The LED acts as a reminder to turn off
the system power before plugging or unplugging devices.
Audio CODEC. The Realtek ALC650 is a 6-channel audio CODEC
that is fully compliant with AC ‘97 2.2 specifications. The ALC650
provides a playback sampling rate of 96KHz and supports DVD
applications.
(on audio models only)
PCI slots. These three 32-bit PCI 2.2 expansion slots support bus
master PCI cards with 133MB/s maximum throughput.
AGP warning LED. Serving as a smart burn-out protection for the
motherboard, this red LED lights up if you plug in any 3.3V AGP
card into the AGP slot. When this LED is lit, there is no way you
can turn on the system power even if you press the power button.
LAN PHY. This Intel 82562ET LAN PHY works with the integrated
MAC in the South Bridge (ICH4) to fully support 10BASE-T/
100BASE-TX Ethernet networking.
(on LAN models only)
PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.
Parallel port. This 25-pin port connects a parallel printer, a
scanner, or other devices.
RJ-45 port. This port allows connection to a Local Area Network
(LAN) through a network hub.
(on LAN models only)
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