Installing Accessory Boards
The PC has four accessory board slots:
Slot 1 (the bottom slot) can be used for half-length 16-bit ISA boards.
Slot 2 can be used for full-length 16-bit ISA boards.
Slot 3 can be used for full-length 16-bit ISA or 32-bit PCI boards.
Slot 4 (the top slot) can be used for 32-bit PCI boards.
HP Vectra PC User's Guide
3 Installing Accessories In Your PC
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