Model 466-1 Adapter
Common Problems And Solutions 71
Chapter 9: Common Problems And Solutions
9.0 Introduction
Chapter 9 includes solutions for the most common problems SBS customers
experience when setting up and using the Model 466-1 adapter. If your
problem is not discussed in this chapter or the solution does not work in your
environment, call SBS's technical support at
651-905-4700
.
9.1 Runtime Symptoms Of Address Conflicts
An address conflict arises when more than one device responds to a given
address, and involves the REM RAM window, the Dual Port RAM window,
and/or the I/O register window.
The following symptoms are consistent with but not necessarily the result of
address space conflicts. Symptoms of an address conflict often are not clearly
defined. The system may work, fail, or work intermittently. It may fail upon
warm up, or after several months of use. Your system may display symptoms
of address space conflicts other than those listed below.
If the computer does not boot properly, either the REM RAM window or
the Dual Port RAM window may be configured to respond to an address
that is usually occupied by a device's RAM or ROM.
If a VMEbus adapter card works in one computer, but not in another, the
two systems may be configured differently. For example, an address
conflict may occur in one system but not in the other. Differences in
timing, bus loading, operating system configuration, and other factors
may mask the conflict in one computer but not the other.
In some cases, address conflicts do not show up immediately. For
example, an adapter card works until the system warms up, or,
conversely, fails until the system warms up, the working temperature of
the components may be changing the timing and drive characteristics.
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