Asset ID:	1-71-1019571.1
Update Date:	2011-03-09
Keywords:

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Solution Type  Technical Instruction Sure

Solution  1019571.1 :   Identifying why the plastic handle of a PCI cassette can split apart on insertion into an M8000 or M9000 IOU  


PreviouslyPublishedAs
241406

Applies to:

Sun SPARC Enterprise M8000 Server - Version: Not Applicable to Not Applicable - Release: N/A to N/A
Sun SPARC Enterprise M9000-32 Server - Version: Not Applicable to Not Applicable   [Release: N/A to N/A]
Sun SPARC Enterprise M9000-64 Server - Version: Not Applicable to Not Applicable   [Release: N/A to N/A]
All Platforms

Goal

This article addresses the problem of distorting the PCI cassette handle during insertion into an M8000 or M9000 IOU.
Become familiar with PCI cassette insertion from Chapter 13 of the M8000/M9000 Service Manual (819-4202) before reading the following details.

Solution

The plastic handle of an M8000 or M9000 PCI cassette can split down the center if care is not taken during insertion into an IOU.

A PCI cassette (PCICS, 371-2246) for an M8000 or M9000 server contains a spring-loaded captive screw with a green plastic head. This captive screw is embedded in the plastic handle (lever) of the PCI cassette. If this screw is tightened too tightly during insertion into an IOU, it can split the plastic handle apart.

The plastic handle, or lever, of a PCI cassette (PCICS) is molded in two parts (mirrored pairs). Both mirrored halves of the handle are then screwed together in three places rather than being glued or welded together. The spring-loaded captive screw is held in place when the two halves of the handle are sandwiched together. However, the captive screw is some distance from the nearest securing screw on the handle and so any side-to-side movement of the captive screw can cause the two halves of the handle to split apart. But the two halves of the handle will spring back together again when the screw is at rest (not being moved by an external force). However, during insertion of the cassette into an IOU, if the two halves of the handle are pushed apart at the time the screw is tightened, the handle will remain in a split condition (see Attachment  for an example of a properly secured captive screw, and a screw carelessly tightened). If this occurs, simply back off the screw a few turns, pinch the halves of the handle together, and tighten the screw again.

Attachments

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