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Document ID: MCGN-3QZRF6

PC Server 325 - Resolving configuration conflicts

Applicable to: World-Wide

Resolving Configuration Conflicts

The resources used by the server consist of IRQs, DMA, I/O port addresses, and memory. This information is useful when a resource configuration conflict occurs.

Conflicts in the configuration occur if:
- A device is installed that requires the same resource as another device. (For example, a conflict occurs when two adapters try to write to the same address space.)
- A device resource is changed (for example, changing jumper settings).
- A device function is changed (for example, assigning COM1 to two serial ports).
- A software program is installed that requires the same resource as a hardware device

The steps required to resolve a configuration error are determined by the number and variety of hardware devices and software programs installed. If a hardware configuration error is detected, a configuration error message appears after the server completes POST and before the operating system is loaded. You can bypass the error by pressing Esc while the error message is displayed.

The Configuration/Setup utility program configures the system hardware and PCI interrupt requests. The program does not consider the requirements of the operating system or the application programs. See "Resolving Software Configuration Conflicts" on page 68 for additional information.

Resolving Hardware Configuration Conflicts: Use the following information to help resolve hardware configuration conflicts:

1. Run the Configuration/Setup utility program to view and change resources used by the system board functions and the PCI interrupt requests (IRQs), if necessary. Record the current settings before making any changes. (See "Starting the Configuration/Setup Utility Program" on page 60 for instructions.)
2. Determine which adapter or device is causing the error.
3. Change configuration resource allocations. Use the Configuration/Setup utility program to view or change system board resource allocations. Jumpers and switches define the system resources a device uses. If the settings are incorrect or set to use a resource that cannot be shared, a conflict occurs and the device will remain deactivated by the configuration program.
4. Change system board jumpers or switches.
5. Remove the device or adapter. Some configurations are not supported.

Resolving Software Configuration Conflicts:
The memory-address space and IRQs used by some hardware options might conflict with addresses defined for use through application programs or the EMS. (EMS is used only with DOS.)

If a conflict exists, one or more of the following conditions might exist:

- The system cannot load the operating system.
- The system does not work.
- An application program does not operate, or it returns an error.
- Screen messages indicate a conflict exists.

To resolve conflicts, you can change the software or hardware configuration.

Note
Start the Configuration/Setup utility program to view
the addresses used by the system board functions.


The best way to resolve memory-address conflicts is to change the addresses used by the application program or the device driver. You can use the Configuration/Setup utility program to change addresses.

If a device driver is causing a memory-address conflict, refer to the operating-system documentation or the documentation supplied with the device drivers.

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Hint Category

Configuration, Hardware Maintenance Information

Date Created

23-01-98

Last Updated

07-08-98

Revision Date

06-08-99

Brand

IBM PC Server

Product Family

PC Server 325

Machine Type

8639

Model

PB0; PT0; PTW; RB0; AAB; 1RY; 2RY; CM0; ZB0; ZBW; ZM0; ZMW; ZS0; ZSW; ZT0; ZTW; ZBR

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