Dram Module Upgrading - Performance Computer PT-VME151A User Manual

DRAM Module Upgrading

The DRAM module is designed to be easily upgraded by the user
mount connection to the PT-VME151A allows the module to be snapped on.
Base Module Connector
(underside of board)
There are three standoffs
VME151A on a work surface component side down and remove the three screws from the standoffs.
Turn the board over and pop off the DRAM module by lifting it straight up from the board. In the drawing
below the grayed area indicates the "component" side.
To install the new DRAM module, place the PT-VME151A on a work surface component side up. Care-
fully align the bodies of the DRAM module connectors, and press firmly on top of the connector with
both thumbs to snap it in. Check to see that the DRAM Module connector is tightly seated. The standoffs
should be flush with the surface of the PT-VME151A.
Turn the PT-VME151A with the attached DRAM Module over (component side down) then install and
tighten the three screws into the standoffs.
1
The jumpers (K1-K5) on the DRAM Module are factory configured, no user modifications are required.
2
Standoff - A threaded tube with a screw in each end.
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2
that support the DRAM module. To upgrade the DRAM module, place the PT-
Base Module
Connector
Standoffs
Optional EPAK
PT-VME151A Base Module
Extensible Single Board Computer/Controller User's Manual 19
Performance Computer
1
. The low insertion force 80 pin surface
Standoffs
DRAM Module
Standoff