CHAPTER 1 INTRODUCTION
1-1
The ATX IR1 mainboard is a high-performance personal computer
mainboard based on the AMD®AthlonTM processor with 3DNOWTM. The
AMD®AthlonTM processor is the newest microprocessor in the AMD K86TM
family of microprocessors.
The mainboard uses the highly integrated AMD®751 system controller and
AMD®756 peripheral controller. The AMD®751 system controller features:
the S2k system interface supports a 100Mhz clock and double-data rate
(DDR) transfers, the 33MHz 32-bit PCI bus interface supports up to five
masters, the 66MHz AGP 1.0 compliant interface supports 2x data transfer
mode, and High Speed memory designed to support a 100MHz SDRAM (PC-
100-compatible-DIMM) with serial presence detect(PSD). The AMD®756
peripheral bus controllers feature an integrated ISA bus controller, an
enhanced IDE controller with Ultra DMA-66 support, and a keyboard/mouse
controller.
The ATX IR1 mainboard is our first system board to implement the AMD®
750 chipset (AMD®751 and AMD®756), which supports a single Slot A for
AMD®AthlonTM processor.
Chapter 1
INTRODUCTION
