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206379-A
5-3
• Verify that the PCI slot in the workstation is an enabled bus-master slot.
Do not use a slave PCI slot for the BayStack 21 network card. Some
computers may require that you configure the PCI slot to enable bus
mastering. Refer to your computer manual for information about the PCI
BIOS setup program.
Be sure that the slot is configured for level-triggered interrupts. It should not
be configured for edge-triggered interrupts. Table 5-2
describes typical PCI
parameter configurations. Parameters may vary in different systems.
• Verify that your BIOS software correctly supports the PCI Local Bus
Specification, version 2.0 or later. Upgrade your BIOS software if needed.
• Determine whether or not the network card slot is deactivated at the BIOS
level. Use the CMOS Setup utility in your workstation to provide the option to
activate or deactivate slots.
• Disable the Plug and Play option (PnP) in the BIOS setup program, if your
computer does not require this option. Incorrectly assigned resources between
network cards may cause a problem.
• You may need to reserve interrupts and memory addresses for installed
Industry Standard Architecture (ISA) cards to prevent PCI cards from using
the same settings. Refer to your PC manual for instructions.
Table 5-2. Typical PCI Slot Parameters
Parameter Configuration
PCI Slot # Slot number where the network card is installed
Master Enabled
Slave Enabled
Latency Timer 40 (range: 20 to 255)
Interrupt Type Level-triggered
Interrupt Number Choice of any number that the BIOS setup program
supplies. (The interrupt number should not conflict
with other installed cards.)
Note:
Always consult your computer manual for information about changing
motherboard jumper and BIOS settings. If you modify the BIOS settings,
make sure the jumper and BIOS settings match.