Asus P4B266-M - Manual (Page 14)

1-2 Chapter 1: Product introduction
1.3 Special features
Latest processor technology
The P4B266-M motherboard supports the latest Intel Pentium 4 478/
Northwood Processor, also known as P4, via a 478-pin surface mount ZIF
socket. The Pentium 4 processor utilizes the advanced 0.18 micron
processor core in FC-PGA2 package for a 2.0GHz frequency, while the
Northwood processor uses the 0.13 micron processor core with 512KB L2
cache for up to a speedy 2.4GHz frequency. The P4 offers optimized
performance for audio, video, and Internet applications.
DDR memory support
Employing the Double Data Rate (DDR) memory technology, the
P4B266-M motherboard supports up to 2GB of system memory using
PC2100/1600 DDR DIMMs. The ultra-fast 266MHz memory bus doubles
the speed of the PC133 SDRAM to deliver the required bandwidth for the
latest 3D graphics, multimedia, and Internet applications. See page 2-10.
Onboard LAN
The motherboard incorporates the RealTek 8100 PCI LAN chip to support
10BASE-T/100BASE-TX Fast Ethernet networking.
AGP warning LED
A red warning LED is onboard to serve as a smart burn-out protection.
This LED lights up if you plug in any 3.3V AGP card into the AGP slot.
When this LED is lighted, there is no way you can turn on the system
power even if you press the power button.