Chapter 1 Hardware Installation
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Hardware Installation
The American Megatrends Apollo II Pentium ISA
PCI motherboard supports:
•
an Intel Pentium CPU operating at 75, 90,
100, 120, 133, 150, 166, 180, 200 MHz, or
higher speeds,
•
Standard, VR, and VRE voltages.
•
CPU clock speed selected through jumpers,
•
optional 321-pin ZIF CPU socket,
•
up to 128 MB of onboard system memory,
•
PCI local bus throughput of 132 megabytes per
second,
•
256 KB or 512 KB of onboard asynchronous
SRAM direct-mapped write-back L2 cache
memory or 256 KB or 512 KB of burst SRAM
in a 160-pin IDT module,
•
AMIBIOS with power management, PCI,
Flash ROM, enhanced IDE, and Plug and Play
support,
•
three ISA expansion slots, and
•
four PCI expansion slots.
The motherboard conforms to the PCI Version 2.1
specification. The PCI slots are automatically
configured by the AMIBIOS. The PCI slots operate
synchronously with the CPU clock, as follows:
CPU External Clock Frequency
PCI Expansion Slot Frequency
66 MHz
33 MHz
60 MHz
30 MHz
50 MHz
25 MHz
Onboard I/O
The Apollo II Pentium ISA motherboard includes:
•
two 40-pin IDE connectors on the PCI bus that
support up to four IDE drives,
•
a 34-pin floppy drive connector,
•
two 10-pin serial port connectors (with 16550
UARTs),
•
a 26-pin parallel port connector with ECP and EPP
support,
•
a keyboard connector, and
•
a PS/2 mouse connector.
