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IBM 520 - Page 317

IBM 520
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Configuration Conflicts
Configuration Conflicts
The resources used by your server consist of interrupt request levels
(IRQs), direct memory access channels (DMAs), I/O ports (for
example, serial and parallel), and memory. This information is
useful when a resource configuration conflict occurs.
Conflicts in the configuration occur if:
An installed device requires the same resource as another
device. (For example, if you install an ISA network adapter and
an EISA network adapter, both requesting IRQ 5, only one of
the adapters can be configured.)
A device resource is changed (for example, changing jumper
settings).
A device function is changed (for example, assigning COM 1 to
two different serial ports).
An installed software program requires the same resource as a
hardware device (for example, an expanded memory
specification (EMS) device driver that uses the address required
by the SVGA video adapter).
The steps required to resolve a configuration error depends on the
number and variety of hardware devices and software programs
that you install. If a hardware configuration error is detected, a
configuration error message appears after the server completes POST,
but before the operating system starts. You can bypass the error or
start one of the configuration utility programs. Press F1 to bypass
the error and load the operating system. Press F2 to start the Setup
program. To start the EISA Configuration Diskette, insert the
diskette in the diskette drive and press F1.
The Setup program and the EISA Configuration program only
configure the system hardware. These programs do not consider
the requirements of the operating system or the application
programs. See “Resolving Software Configuration Conflicts” on
page 301 for additional information.
Chapter 6. Configuring Your Server 299