Expansion Slots (Low Profile Computers) - DEC Digital PC 3500 System Reference Manual

Adding Expansion Boards

Expansion Slots (Low Profile Computers)

Your computer's low profile backplane contains four connectors for installing up to
three expansion boards:
•
Two ISA expansion boards and one PCI expansion board or
•
One ISA expansion board and two PCI expansion boards (refer to the table).
Expansion Slot
Designation
ISA2
PCI2
ISA1
PCI1
(1) Only one expansion board can reside in slot PCI2 and ISA1 at any one time. These slots have to share the
middle expansion slot opening at the rear panel, thus, a maximum of three expansion boards can be
supported at any one time.
5-2
Description
Supports half-length industry-standard 16-bit ISA expansion boards
Uses the top expansion slot at the rear panel
Supports full-length 32-bit PCI local bus expansion boards
Uses the middle expansion slot at the rear panel
Designated as a shared slot with ISA slot ISA1
Supports full-length industry-standard 16-bit ISA expansion boards
Uses the middle expansion slot at the rear panel
Designated as a shared slot with PCI slot PCI2
Supports half-length 32-bit PCI local bus expansion boards
Uses the bottom expansion slot at the rear panel
(1)
(1)