HP x2100 manual Checking for address and interrupt conflicts, Resolving Interrupt Conflicts

Checking for address and interrupt conflicts

♦It is necessary to ensure that the I/O and memory addresses reserved for the graphics board are not used by other hardware devices.

♦The integrated on-board VGA controller of your Fire GL2 uses the following addresses (hex):

I/O Address

Standard VGA I/O: 3B0-3DF

Memory Addresses:

Video RAM: A000-BFFF

Video ROM: C000-C7FF

Note: You cannot change the addresses of your Fire GL2. In case of an address conflict, try to modify the I/O address of the add-on card that causes the conflict.

Resolving Interrupt Conflicts

To support the special graphics processor on the Fire GL2 the system BIOS should automatically assign a system interrupt to the AGP slot where the card is installed. However, there may be problems if your graphics card does not receive an interrupt or a system interrupt is used for more than one device. In case of problems try the following:

♦Check the system configuration utility of your operating system for the interrupt assignments.

♦Inspect your system BIOS setup for an option that says "Assign IRQ to VGA" or something similar and ensure that this option is enabled. If you do not have this option and your graphics card does not receive an interrupt, contact your motherboard manufacturer for an updated BIOS that has this option.

♦Some older ISA legacy add-in cards (with jumpers, non-PnP) may cause a conflict if they are not configured in the ESCD (extended system configuration data) area of the system BIOS. Please refer to your computer’s User’s Guide for information on using the ISA Configuration Utility ICU to add the required legacy card resources to the system.

38 Troubleshooting