American Megatrends MegaDual, User Manual

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MegaDual PCI Motherboard User’s Guide 2
Overview,
Continued
PCI Bus Speed AMIBIOS automatically configures the PCI slots. The PCI slots are synchronous with the
CPU clock:
CPU External Clock
Frequency
PCI Expansion Slot Frequency
100 MHz 33 MHz for 32-bit, 66 MHz for 64-bit
133 MHz 33 MHz for 32-bit, 66 MHz for 64-bit
Onboard I/O The MegaDual motherboard includes:
•
one onboard Qlogic 12160 dual 160M SCSI controller
•
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 and PS/2 mouse dual mini
•
two 4-pin USB ports on dual combo
•
onboard 82559 10/100 Mb LAN