American Megatrends Merlin DP, Руководство пользователя, Страница: 5 / 69

Chapter 1 Hardware Installation
1 Hardware Installation
Overview
The American Megatrends Merlin DP PCI Pentium Pro ISA motherboard
features include:
•
supports two Intel Pentium Pro CPUs operating at 133, 150, 166, 180, or 200
MHz,
•
supports up to 512 MB of system memory,
•
parity checking or ECC (Error Checking and Correction),
•
PCI local bus throughput of 132 megabytes per second,
•
three ISA expansion slots, and
•
four PCI expansion slots.
ISA DMA or Bus Masters
The Merlin DP Pentium Pro PCI ISA motherboard conforms to the PCI Version
2.1 specification, if the PCI 2.1 Compliance option in Chipset Setup is set to
Enabled. The Version 2.1 PCI specification requires a deterministic latency for
PCI devices.
Computers that use ISA DMA or ISA bus masters will experience longer
access latencies if the PCI 2.1 Compliance
Chipset Setup
option is set to Enabled.
AMIBIOS automatically configures the PCI slots. The PCI slots are
synchronous with the CPU clock:
CPU External Clock FrequencyPCI Expansion Slot Frequency
66 MHz 33 MHz
60 MHz 30 MHz
50 MHz 25 MHz
Onboard I/O
The Merlin DP motherboard includes:
•
two 40 – pin IDE connectors for 1 – 4 IDE drives,
•
a 34 – pin floppy drive connector,
•
two serial port connectors,
•
a 25 – pin parallel port connector,
•
a keyboard DIN connector, and
•
a 9 – pin berg mouse connector.