Additional Eisa Troubleshooting Tips - Digital Equipment 3300R Service Manual

Power-Up Diagnostics and Display

Additional EISA Troubleshooting Tips

The following tips can aid in isolating EISA bus problems:
•
Peripheral device controllers need to be seated firmly in their slots to make all
necessary contacts. Improper seating is a common source of problems.
•
Be sure you run the correct version of the ECU for the operating system. For
Windows NT, use ECU diskette DECpc AXP (AK-PYCJ*-CA).
•
The CFG files supplied with the option you want to install may not work on
Server 3300/3300R systems. Some CFG files call overlay files that are not required on
this system or may reference inappropriate system resources, for example, BIOS
addresses. Contact the option vendor to obtain the proper CFG file.
•
Peripherals cannot share direct memory access (DMA) channels. Assignment of more
than one peripheral to the same DMA channel can cause unpredictable results or even
loss of function of the EISA module.
•
Not all EISA products work together. EISA is an open standard, and not every EISA
product or combination of products can be tested. Violations of specifications may
matter in some configurations, but not in others.
•
Manufacturers of EISA options may have a list of ISA and EISA options that do not
function in combination with particular systems. Be sure to check the documentation
or contact the option vendor for the most up-to-date information.
•
EISA options will not function unless they are first configured using the ECU.
•
The ECU will not notify you if the configuration program diskette is write-protected
when it attempts to write the system configuration file (system.sci) to the diskette.
2–22 DIGITAL Server 3300/3300R
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