IBM PC 300GL Types 6275, Руководство по установке

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Adapters and the Riser Card
Your computer uses a riser card for expansion. The riser card contains expansion
slots that connect adapters to the industry standard architecture (ISA) and
peripheral component interconnect (PCI) buses. The data path is 16-bits wide for
the ISA-expansion slots and 32-bits wide for the PCI-expansion slots.
The riser card in the 3-bay design has two shared slots that provide access to the
ISA and PCI buses. You can only install one adapter in each shared slot; thus the
3-bay design accommodates up to two adapters plugged into the riser card. The
riser card in the 4-bay design has two shared slots, along with one slot dedicated to
the ISA bus and one slot dedicated to the PCI bus. The 4-bay design accommodates
up to four adapters plugged into the riser card. The following illustrations show
the riser cards by model.
PCI
Shared Slot 1
ISA
PCI
ISA
Shared Slot 2
3-Bay Design
(On other side)
(On other side)
PCI 3
PCI 1
Shared Slot
ISA 2
PCI 2
Shared Slot
ISA 3
ISA 1
4-Bay Design
Note: On the 3-bay design riser card, each PCI connector shares a slot with the ISA
connector directly below it. On the 4-bay design riser card, one pair of
shared connectors is on a side by itself. For the other pair of shared
connectors, the PCI connector shares a slot with the ISA connector directly
below it.
Chapter 4. Working with Adapters
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