4-17
Compaq Professional Workstation AP200 Maintenance and Service Guide
Network Problems
Continued
Problem
Cause
Solution
Network controller
stopped working when
an expansion board
was installed.
1. Network drivers are not
loaded or driver parameters
do not match the current
configuration.
2. The cable is not securely
connected.
3. The network controller
interrupt or memory overlaps
the interrupt or memory of
another expansion board.
4. The network controller
requires drivers.
5. The files containing the
network drivers are
corrupted.
1. Be sure that the network drivers are loaded and that
the driver parameters match the configuration of the
network controller using Network Setup found in the
Control Center.
2. Be sure that the cable is securely attached to the
network connector and that the other end of the cable
is securely attached to the correct device.
3. Run Computer Setup and modify the network
controller memory value.
4. Verify that the drivers were not accidentally deleted
when the drivers for a new expansion board were
installed.
5. Reinstall the network drivers using the Compaq
SmartStart for Workstations CD, then run Computer
Setup.
Network controller
stopped working
without apparent
cause.
1. The files containing the
network drivers are
corrupted.
2. The cable is not securely
connected.
3. The network controller
is defective.
1. Reinstall the network drivers the Compaq
SmartStart for Workstations CD, then run Computer
Setup.
2. Be sure that the cable is securely attached to the
network connector and that the other end of the cable
is securely attached to the correct device.
3. Replace the network controller or system board.
Audio Hardware Conflicts
This section provides solutions to hardware conflicts. Hardware conflicts occur when two or
more peripheral devices contend for the same signal lines or channels. Conflicts between the
audio interface and another peripheral device may be due to the settings of the base I/O
addresses, interrupts, or DMA channels. The audio interface typically has the following
settings:
■
Base I/O address
220H
■
OPL III I/O address
388-38Bh
■
Interrupt
IRQ 5
■
8-bit DMA
Channel 1 and Channel 0 or 3
To resolve hardware conflicts:
1.
Change the hardware settings of the audio card or the peripheral card in your system if
the peripheral card is using the audio interface setting.
2.
If you are unsure of the settings of the peripheral cards, you can isolate the source of the
problem by temporarily removing all cards. After that, add the cards back one at a time
until the card that is causing the conflict is found.
