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Chapter 3 Hardware Description
Pentium II/III ATX Motherboard User’s Manual 5
Chapter 3 Hardware Description
This chapter briefly describes each of the major features of the
motherboard. The layout of the board in Figure 1 shows the location of
the key components. The topics covered in this chapter are as follows:
3.1 Processor ................................................................................... 7
3.2 L2 Cache ................................................................................... 7
3.3 Main Memory............................................................................ 7
3.4 BIOS.......................................................................................... 8
3.5 I/O Port Address Map................................................................ 9
3.6 DMA Channels .......................................................................... 9
3.7 Interrupt Request (IRQ) Lines ................................................. 10
3.8 Onboard PCI-IDE.................................................................... 10
3.9 Onboard Multi-I/O .................................................................. 11
3.10 Onboard AGP Slot................................................................. 11
3.11 Hardware Monitoring IC ....................................................... 11