SMC Networks 10/100 Mbps - Manual (Page 46)

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ROUBLESHOOTING
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the network card is installed. Ensure that the slot is configured for
level-triggered interrupts instead of edge-triggered interrupts. An
example of typical PCI parameters follows:
PCI Slot #: (slot number where the network card
is installed)
Master: Enabled
Slave: Enabled
Latency Timer: 40 (range is 20 to 255)
Interrupt Type: Level-Triggered
Interrupt Number: (choose any number the BIOS Setup
supplies that does not conflict with
another installed card)
Note: The wording of these parameters varies with different
computers, and not all parameters may be configurable.
Always consult your computer manual for information on changing
motherboard jumper settings and BIOS Setup program parameters for use
with PCI network cards. If you set a motherboard jumper and modify the
computer’s BIOS Setup, make sure the jumper and BIOS settings match.