Epson ActionTower 8200 User Manual - Page 9

ISA and PCI Expansion Buses, System and video BIOS

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ISA and PCI Expansion Buses Your computer includes two expansion buses for two types of option cards: ISA and PCI. The ISA bus transfers data at 8.33 MHz for up to three 16-bit ISA option cards. This bus is especially suitable for fax/ modem cards, sound cards, and SCSI (Small Computer System Interface) cards for scanners. The PCI bus provides extremely fast data transfer (33 MHz) for up to two high-performance PCI cards, such as network adapters and high-speed video cards. The computer supports plug and play technology that automatically configures the resources used by PCI cards, such as interrupt requests and memory addresses. System and video BIOS The computer's system and video BIOS are contained in a flash ROM device on the main system board. The BIOS includes the following: ISA and PCI compatibility Power-on diagnostics tests SETUP program PCI auto-configuration utility BIOS upgrade and recovery code Your computer supports shadowing of the system and video BIOS to allow the BIOS routines to run from fast, 64-bit RAM instead of from the slower, S-bit flash ROM device. Introduction 3

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ISA and PCI Expansion Buses
Your computer includes two expansion buses for two types of
option cards: ISA and PCI. The ISA bus transfers data at
8.33 MHz for up to three 16-bit ISA option cards. This bus is
especially suitable for fax/ modem cards, sound cards, and
SCSI (Small Computer System Interface) cards for scanners.
The PCI bus provides extremely fast data transfer (33 MHz) for
up to two high-performance PCI cards, such as network
adapters and high-speed video cards. The computer supports
plug and play technology that automatically configures the
resources used by PCI cards, such as interrupt requests and
memory addresses.
System and video BIOS
The computer’s system and video BIOS are contained in a flash
ROM device on the main system board. The BIOS includes the
following:
ISA and PCI compatibility
Power-on diagnostics tests
SETUP program
PCI auto-configuration utility
BIOS upgrade and recovery code
Your computer supports shadowing of the system and video
BIOS to allow the BIOS routines to run from fast, 64-bit RAM
instead of from the slower, S-bit flash ROM device.
Introduction 3