Compaq.com - Compaq Presario Maintenance and Service Guide - 2250, 2410 ES, 2510, and 4240 ES Series
United States December 10, 2002
Maintenance & Service Guide
Presario 2250 Series
2510, 2410 ES & 4240 ES Personal Computers
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Resolving Hardware Conflicts
Hardware conflicts occur when two or more peripheral devices attempt to use
the same hardware resources. I/O addresses, interrupts, and DMA channels
are the most common hardware resources used by peripheral devices. For
example, the factory default settings for the MIDI port audio interface are:
Audio Interface
Base I/O
address
220H
MIDI Port
Base I/O
address
330H
Interrupt
IRQ 5
8-bit DMA
Channel 1
When different peripheral devices use the same hardware resources at the
same time, the devices and/or the system may not function properly. You can
resolve hardware conflicts by ensuring that no devices are configured to use
the same hardware resources. These resources can either be dipswitch or
jumper settings on the peripheral card or software configurable resources.
The Computer Setup selection of your Compaq Utilities allows you to view and
modify the settings for the peripheral devices factory installed in your system.
Refer to the
User's Guide
for the particular peripheral cards you wish to install
for information on how to view and select their settings.
To resolve hardware conflicts:
1. Change the hardware settings of your audio card or other peripheral card
in your system if the peripheral card is using any settings used by the factory-
installed devices.
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 not
manufactured by Compaq, or resetting the default settings and running
Compaq Utilities. After that, add the cards back one at a time until the card
that is causing the conflict is found.
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http://h18000.www1.hp.com/athome/support/msgs/2000/conflict.html [12/10/2002 8:58:02 AM]
