Browse Prior Art Database

Pentium II Ladder Frame Retention and Support Structure

IP.com Disclosure Number: IPCOM000122788D
Original Publication Date: 1998-Jan-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 59K

Publishing Venue

IBM

Related People

Fallwell, N: AUTHOR

Abstract

Disclosed is a mechanical device to solve the attachment and retention problem encountered when designing a computer system using the Intel Pentium II* processor cartridge. Specifically, the Intel Pentium II system board purchased from Intel, to be installed in an IBM chassis by IBM manufacturing, could not be accomplished using the accepted IBM manufacturing practices. Also, the existing mechanical design for the Pentium II processor did not provide sufficient support which lead to processor-induced system board failures due to stress fractures of the system board.

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Pentium II Ladder Frame Retention and Support Structure

      Disclosed is a mechanical device to solve the attachment and
retention problem encountered when designing a computer system using
the Intel Pentium II* processor cartridge.  Specifically, the Intel
Pentium II system board purchased from Intel, to be installed in an
IBM chassis by IBM manufacturing, could not be accomplished using the
accepted IBM manufacturing practices.  Also, the existing mechanical
design for the Pentium II processor did not provide sufficient
support which lead to processor-induced system board failures due to
stress fractures of the system board.

      As shown in the Figure, the solution to the
non-manufacturability and fragility issue is the disclosed ladder
frame.  It fits underneath the system board.  The ladder frame is
designed as a series of interconnecting bars that are located within
the system unit base pan by molded in holes (1) that allows the
ladder frame to be positioned over the system board threaded stand
off studs.  The stand off studs will now protrude through the ladder
frame and allow the system board to be installed and fastened in a
normal manner.

      The ladder frame, as described, is constructed of injection
molded plastic but any suitable, non-conductive material can be used.
It is a one piece part that contains all of the needed threaded
inserts (2)  and also functions as a system board stiffener and
support in the area  of the supported proce...