Nortel Networks W/WOL, 21 PCI 10/100 manual Typical PCI Slot Parameters

Troubleshooting

•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.

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.)

•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.

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.

•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.

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