User's Manual

Chapter 1 Hardware Installation
1
1 Hardware Installation
Overview
The American Megatrends Apollo III PCI Pentium ISA motherboard includes
the following features.
CPU The motherboard supports an Intel® Pentium™ 75, 90, 100, 120, 133, 150,
166, 180, 200 MHz or higher speed CPU operating at Standard, VR, or VRE
voltages. The CPU speed and voltage are set via jumpers.
Upgrade CPU You can install an Intel P54C series, P54CT, or P55C CPU.
Chipset The Apollo III PCI Pentium ISA motherboard uses an Intel 82430HX,
including CPU interface controller, advanced cache controller, integrated
DRAM controller, synchronous ISA bus controller, PCI local bus interface,
and integrated power management unit.
Expansion slots The motherboard includes three 16-bit ISA expansion slots and four 32-bit
PCI expansion slots. The PCI local bus throughput can be up to 132
megabytes per second.
L1 Internal Cache The Intel Pentium on the motherboard has an 8 KB data cache and an 8
KB instruction cache.
L2 Secondary Cache The motherboard has either 256 KB or 512 KB of synchronous
PBSRAM, direct-mapped, write-back. L2 secondary cache memory.
Cont’d