Introduction
Pentium 4 just got better with the new P4B266 Series motherboards. P4B266 Series motherboards redefine high-performance for Pentium 4 with the Intel 845D chipset and DDR 266 support. Overall system operation is enhanced with a peak 2.1 GB/s bandwidth, letting you enjoy the true benefits of the multimedia digital era. Available in a large variety of models, the ASUS P4B266 Series motherboards provides reliable and powerful solutions for all types of Pentium 4 systems.

DDR Memory Support
The ASUS P4B266 and the Intel 845D chipset unlock the value of Pentium 4 technology with high-bandwidth DDR SDRAM. Supporting up to 2GB of PC2100/PC1600 and a peak bandwidth of 2.1GB/s, the P4B266 enables enhanced performance in multimedia applications, video, audio, 3D games and more.

6-Channel Audio (Optional)
The P4B266 uses an onboard C-Media audio controller, letting you enjoy 6-channel audio without having to buy advanced sound cards.

Ultra-fast USB 2.0 Support (Optional)
The ASUS P4B266 features optional USB 2.0 support. USB 2.0 is the latest connectivity specification for peripheral devices and features transfer speeds of up to 480 Mb/s. Approximately forty times faster than conventional USB 1.1, USB 2.0 is backwards-compatible supporting all the USB devices of today and tomorrow.

Onboard Intel 10/100Mbps LAN (optional)
An Intel LAN controller ensures convenient connectivity to your network, SOHO, and broadband.

System Voice Warning
An unique onboard speech IC chip and ASUS POST Reporter™ provides clear explanations of system errors for quick and easy optimization. The P4B266 also includes Winbond Voice Editor allowing users to add customized system voice warnings and multi-language support.

Advanced Media Support
Smart card reader support enables cutting-edge technology features such as increased security, authenticating online transactions, editing IC based information and more. SD and Memory Stick are also supported enabling enhanced storage portability.

Flexible Power Connectivity
The ASUS EZ Plug™ power connector lets you use your existing power supply and eliminates the need to buy a special ATX 12V power supply necessary to support your P4 CPU.

Personalized Boot Up Logos
Get rid of boring boot up screens. ASUS MyLogo™ personalizes and adds style to your system with customizable boot logos.

Expandability
The P4B266 is ultra-expandable with 6 standard PCI interfaces and connections for two USB 1.1 ports and up to four USB 2.0 ports. A CNR interface supports software modem or audio technologies via a modem/audio riser card, while an AGP4X slot supports today's most advanced graphics cards.

Extreme Overclocking

ASUS P4B266 offers the most overclocking options available to maximize your system performance.

• Easy DIP Switch or Jumperfree™ overclocking from BIOS
• Flexible CPU Core Voltage Adjustments in 0.05V increments over defaults
• Accurate 1MHz adjustments of system-bus-frequency up to 200MHz (i.e. front-side-bus up to 800MHz)
• Adjustable VIO memory voltage
• Adjustable FSB/PCI/MEM ratio
• Adjustable AGP bus
• Rock-solid stability
  

ASUS Reliability
All ASUS motherboards are designed and tested to meet the highest quality standards. Responsive customer support and frequent BIOS and driver updates ensure that you're getting the fastest, most reliable performance- all the time. All ASUS motherboards are also backed by a 3-year limited warranty.

Comprehensive Software Bundle

All ASUS motherboards include a valuable software bundle of popular third party programs that enable you to enjoy the full capabilities of your ASUS product:

• Trend Micro PC-cillin 2000 anti-virus program
• ASUS PC Probe for system monitoring
• Cyberlink PowerPlayer SE, Video Live Mail

Key Specification Summary

• Supports Intel Pentium 4 socket 478 processors
• Intel i845D and ICH2 chipset
• 3 DIMMS slots for up to 2GB of PC2100/PC1600 DDR SDRAM support
• AGP 4X slot
• ATA-100/66/33 support
• 2 USB 1.1 ports
• 6 PCI slots / 1 CNR slot
• 4 USB 2.0 ports (optional)
• C-Media CMI8738 6-channel audio (optional)
• Intel 10/100 Mbps Ethernet LAN controller(optional)
• S/PDIF-in/out interface (optional)