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Processor The P4VXAD mainboard includes a mPGA Socket 478 that
has the following features:
•Supports up to a 400/533 MHz front side bus (FSB)
•Accommodates Intel Pentium 4 processors
Chipset The chipset on P4VXAD includes the VT8753A Northbridge and
VT8233A Southbridge which are based on an innovative and
scalable architecture with proven reliability and performance. A
few of the chipset’s advanced features are:
•An advanced V-Link memory controller architecture that
provides the bandwidth and performance necessary for
even the most demanding Internet and 3D graphics
•Support for a 4xAGP interface providing vivid 3D graphics
and video performance
•An ATA 133 interface on the VT8233A chipset, which
helps boost system performance by providing a high-
speed connection to ATA 133 Hard Disk Drives, deliver-
ing maximum sustained data transfer rates of 133 MB/sec
Additional features include support for four USB ports, an AC
97 link for audio and modem, hardware monitoring, and
ACPI/OnNow power management.
Note: This mainboard incorporates either VT8233A or
VT8233 Southbridge chipset.
Memory The mainboard accommodates three 184 pin, 2.5V DDR DIMM
sockets with a total capacity of 3 GB (registered), 1.5 GB (un-
buffered).
VGA The P4VXAD includes a 4xAGP slot that provides four times
the bandwidth of the original AGP specification. AGP technol-
ogy provides a direct connection between the graphics sub-
system and memory so that the graphics do not have to com-
pete for processor time with other devices on the PCI bus.
AC’ 97 Audio
Codec The AC’97 Audio codec is compliant with the AC’ 97 2.2 speci-
fication, and supports 18-bit ADC (Analog Digital Converter)
and DAC (Digital Analog Converter) resolution as well as 18-bit
stereo full-duplex codec with independent and variable sam-
pling rates. Further features include support for four analog
line-level stereo inputs.
USB USB 1.1
The VT8233A (which support four USB ports) or VT8233
(which support six USB ports) Southbridge chipset features the
USB 1.1 specification.
However, if the mainboard comes with VIA VT6202, then the
mainboard supports the USB 2.0 specification.
USB 2.0 (optional)
The VIA VT6202 PCI USB 2.0 Controller is compliant with
Universal Serial Bus Specification Revision 2.0.
The USB 2.0 supports data transfer rates up to 480Mb/sec for
high-speed devices and specifies a microframe that will be
1/8th of a 1msec frame. This allows the USB 2.0 devices to