Browse Prior Art Database

Power and Thermal Configurator for Personal Computer Systems

IP.com Disclosure Number: IPCOM000114983D
Original Publication Date: 1995-Feb-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 6 page(s) / 190K

Publishing Venue

IBM

Related People

Elmore, JM: AUTHOR [+3]

Abstract

Described is a software implementation to provide a Power And Thermal Configurator (PATC) program for Personal Computer (PC) systems by providing a means of analyzing system power and thermal requirements when optional feature adapters are to be installed in a system. In addition, the program lists the proper placement of circuit cards so that power and thermal operational problems will not occur.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 35% of the total text.

Power and Thermal Configurator for Personal Computer Systems

      Described is a software implementation to provide a Power And
Thermal Configurator (PATC) program for Personal Computer (PC)
systems by providing a means of analyzing system power and thermal
requirements when optional feature adapters are to be installed in a
system.  In addition, the program lists the proper placement of
circuit
cards so that power and thermal operational problems will not occur.

      In prior art, there was no automated method by which adapters
and optional feature cards could be placed within a PC system so that
thermal and excessive power loading can meet requirements for
required operation.  The concept described herein provides a method
whereby a user can be given information as to whether the addition of
an optional feature adapter will overload the system power supply and
how a set of adapters and/or options should be arranged in the system
to take advantage of the thermals of the system.  The PATC analyzes
all pluggable options into two categories:
  1.  Adapters which plug into the system bus and
  2.  Options that are not on the system bus, such as memory and
       functional island circuit cards.

      The total power available at a PC system is a fixed value that
varies between systems depending on the adapter and option
requirements in that the power consumed by a PC system adapter may
vary between adapters.  Since a system may be configured with any of
the option adapters available in the market, a maximum current
ceiling is allotted to any PC system family of adapters.  Typically,
the current operational maximum values for a 5V supply operate at 1.6
Amps for a 16-bit adapter and 2.0 Amps for a 32-bit adapter.  For  a
12V supply, the current maximum is 175 milliamps.  For thermal
requirements, a PC system is cooled by one or more fans and by way of
specific vents which allow for convection cooling of the adapters and
planar components.  In optimum design situations, some adapter slots
are more amenable the to cooling air flow than others.  The PATC is
designed to provide a list of suggested placement of a particular set
of adapters based on both the thermal characteristics of a specific
system as well as the particular adapter set.  The PATC provides a
suggested placement of adapter cards to prevent premature failure of
one or more adapters due to thermal problems, such as hot spots, in
the Input/Output (I/O) expansion area of the system.

The PATC consists of the following:
  o  The system reference diskette is changed to include the PATC
      program as a selectable option, either at the main menu or
under
      the "Run Configuration" option.
  o  An addition to the system reference diskette program provides a
      system thermal data file for the particular system.
  o  A configurator program operates with the system configuration
      utilities and is included on the system...