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Introducing the Motherboard
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the KVM266PM motherboard. This motherboard is a high perfor-
mance, enhanced function motherboard that supports Socket 462 AMD AthlonXP/Athlon/
Duron processors for high-end business or personal desktop markets.
The motherboard incorporates the VIA KM266Pro Northbridge (NB) and VT8235
Southbridge (SB) chipsets. The KM266Pro Northbridge chipset supports 333/266/200MHz
FSB AMD AthlonXP, Athlon and Duron processors; it implements a deep command (4-
level), probe (4-level) and memory read/write/PCI command (8-level each) queues for
optimal system performance. The KM266Pro provides superior performance between the
CPU, DRAM, V-Link bus and internal AGP graphics controller with pipelined, burst, and
concurrent operation. The AGP controller is AGP v2.0 compliant with up to 1 GB/sec data
transfer rate capability. The KM266Pro supports pseudo-synchronous AGP and CPU
interface with optimal skew control to maximize system performance. It also integrates a
128-bit graphics controller into the chip.
The VT8235 Southbridge enhances system performance by using an 8X V-Link connection
to the Northbridge with a total bandwidth of 533MB/s. The VT8235 provides integrated
support for six USB 2.0 ports, ATA-133 support, which offers a significant performance
improvement in data intensive professional applications and in consumer applications
including gaming, audio and video. The Southbridge also features integrated VIA MAC for
10/100Mbps Fast Ethernet, integrated PCI support, 6-channel Surround Sound AC’97 audio
interface and MC’97 modem.
There is an advanced full set of I/O ports in the rear panel, including PS/2 mouse and
keyboard connectors, COM1, LPT1,VGA port and four USB ports, one optional LAN port,
and audio jacks for microphone, line-in, and line-out. This motherboard is designed in a
Micro-ATX form factor using a four-layer printed circuit board and measures 244 mm x 221
mm. In addition to its excellent performance, the motherboard features a host of high-
definition digital media technologies.
