Introduction - Xycom XVME-678 Manual

Chapter 2 - INSTALLATION
2.1 INTRODUCTION
This chapter provides the information necessary to configure the XVME-678/688 VMEbus PC/AT
Processor Module. It also provides information on installing the XVME-678/688 into a backplane, adding
extended BIOS to the XVME-678/688, adding DRAM memory in SIMM sockets, and installing an
optional math co-processor.
WARNING
If the battery is disabled in your system, please do the following: Upon
enabling, your module must be powered up for a minimum of 30 seconds.
Failure to follow this procedure may result in premature battery failure.
WARNING
XVME-678/688 CPU modules with functional revision levels of 4.1 or
higher (functional revision levels and part numbers are located on a label
on the PI connector) feature a 16-bit compatible PC/104 expansion site.
This PC/104 expansion site requires a new version of the XVME-956
Modular I/O Carrier Module. If the CPU module's functional revision level
is 4.1 or higher, use the XVME-956/12 (part number 70956-012). If the
functional revision level is less than 4.1, use the XVME-956/2 (part
number 70956-002). Do not use the XVME-956/2 on a CPU module with
functional revision levels of 4.1 or higher as this may cause damage to
both modules.
In addition, the XVME-956/402 SCSI Expansion Module has been updated.
The XVME-956/412 must be used with XVME-678/688 modules that have
a functional revision level of 4.1 or higher. Use of the XVME-956/402
with the new CPU modules will damage the SCSI Expansion Module and
the CPU.
Please contact Xycom's Customer Service Department at 1-800-289-9266
for assistance.
2-1