Expansion Slots/Riser Cards

^{IBM-AUSTRIA - PC-HW-Support 30 Aug 1999}

Expansion Slots/Riser Cards

Expansion Slots/Riser Cards

All Type 8639 computers have seven expansion slots, two of which are PCI expansion slots. The other five expansion slots are either Micro Channel or ISA, depending on model.

The PCI slots and their adjacent Micro Channel or ISA expansion slots are shared expansion slots . This means that an adapter can be installed in either the PCI expansion slot or the adjacent Micro Channel or ISA expansion slot, but not in both.

A SCSI-2 Fast/Wide PCI Adapter is installed in one of the PCI expansion slots. An Ethernet adapter is installed in one of the Micro Channel or ISA slots.

This leaves one PCI slot and three Micro Channel or ISA slots available for future expansion. For example, you can add adapters to provide communications, specialized graphics, and sound.

PCI/Micro Channel Models

The following illustration shows the location and numbering of the PCI and Micro Channel expansion slots. Note the location of the shared expansion slots.

PCI/ISA Models

The following illustration shows the location and numbering of the PCI and ISA expansion slots. Note the location of the shared expansion slots.

Riser Card (ISA) Administrator Password

ISA Riser cards have an administrator password jumper located to the left of the battery. (if a battery is available/installed)

NOTE: This jumper will not remove the password.

The setting of this jumper determines if an Administrator Password can or cannot be set on the computer.

If the Administrator Password is lost or forgotten, the password cannot be changed or removed. If this occurs, the system board must be replaced.

Jumper Position Results 1-2 (pins closest to machine - front) Administrator Password can be set 2-3 (pins closest to machine - rear) Administrator password cannot be set

Jumper Position	Results
1-2 (pins closest to machine - front)	Administrator Password can be set
2-3 (pins closest to machine - rear)	Administrator password cannot be set

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