10AGP slot. This Accelerated Graphics Port (AGP) slot supports 1.5V AGP4X mode graphics cards for 3D graphical applications.

11Flash EEPROM. This 4Mb firmware contains the programmable BIOS program.

12South bridge controller. Referred to as the Intel I/O Controller Hub 2 (ICH2) of the Intel 845 chipset, this controller provides the I/O subsystem that allows access to the rest of the system. The ICH2 integrates I/O functions such as system bus interface, Ultra ATA/100, Low Pin Count (LPC) interface, Universal Serial Bus (USB) 1.1 interface, PCI interface, and CNR interface.

13SD and MS connectors. These are interfaces for the new generation memory devices called Secure Digital (SD) memory card and Memory Stick (MS).

14RAID Ultra ATA/100/66/33 interfaces. These dual-channel connectors support Ultra ATA/100/66/33 hard disk drives in RAID 0/ RAID 1 configurations. (on RAID models only)

15RAID controller. This Promise® PDC20265R chip provides high performance RAID 0/RAID 1 functionality. (on RAID models only)

16ASUS ASIC. This chip performs multiple system functions that include hardware and system voltage monitoring, IRQ routing, among others.

17DIP switches. This 10-switch Dual Inline Package (DIP) allows you to set the CPU frequency.

18AGP 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.

19Onboard LED. This onboard LED lights up if there is a standby power on the motherboard. This LED acts as a reminder to turn off the system power before plugging or unplugging devices.

20CNR slot. This slot is specifically designed for the Communications and Networking Riser (CNR) card. The CNR supports V.90 analog modem, six-channel audio, HPNA, USB Hub, and the 10BASE-T/ 100BASE-TX Ethernet networking.

21Speech controller. This Winbond speech controller supports ASUS POST Reporter™ for configurable vocal POST alerts.


Chapter 1: Product introduction