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Features
System Board Parts
Microprocessor
The AP5C system board uses an Intel Pentium (3.3V) processor
running at speeds of 75, 90, 100, 120, 133, 150 or 166 MHz. Chapter
2 gives details on how to upgrade the Pentium processor.
ASICs
The ASICs onboard are the 82437FX, 82438FX and 82371FB. The
82437 serves as the system memory controller and PCI bus
interface.
The two 82438FX ASICs function as PCI local-bus data paths that
offer 64-bit DRAM and 32-bit PCI bus interfaces to support the 64-bit
Pentium processor data bus.
The 82371FB acts as the PCI-/ISA-bus bridge that translates the PCI
bus cycles into ISA bus cycles or vice-versa. It also functions as the
PCI fast-IDE interface and the SMM controller.
AMI BIOS
The AMI BIOS (basic input-output system) resides in the flash ROM
chip. This contains the program that performs the power-on self-tests
(POST) upon booting.
During POST, this program activates the
peripheral devices, tests onboard memory, and prepares the system
for operation. Chapter 3 gives more information on the AMI BIOS.
1-4
User's Guide
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