Browse Prior Art Database

High Performance Computer System Package

IP.com Disclosure Number: IPCOM000114795D
Original Publication Date: 1995-Feb-01
Included in the Prior Art Database: 2005-Mar-29
Document File: 4 page(s) / 156K

Publishing Venue

IBM

Related People

Dimmick, RF: AUTHOR [+5]

Abstract

Described is a high performance system package, which may contain from 1 to 4 processors operating at up to a 500 MHZ cycle time, four memory cards each containing up to 1 Gigabyte of main storage, a clock card, and a power system. The power system consists of an AC box operating from 200 volts AC, a line filter, six DC bulk power supplies, each capable of delivering 500 watts at 9 volts, five voltage regulators each capable of converting the 29 volts to 270 watts at 3.72 volts +/-2%, and two 15 Amp-Hr batteries, plus a System Power Control Network (SPCN) power management system.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

High Performance Computer System Package

      Described is a high performance system package, which may
contain from 1 to 4 processors operating at up to a 500 MHZ cycle
time, four memory cards each containing up to 1 Gigabyte of main
storage, a clock card, and a power system.  The power system consists
of an AC box operating from 200 volts AC, a line filter, six DC bulk
power supplies, each capable of delivering 500 watts at 9 volts, five
voltage regulators each capable of converting the 29 volts to 270
watts at 3.72 volts 2%, and two 15 Amp-Hr batteries, plus a System
Power Control Network (SPCN) power management system.  The SPCN power
management system communicates with each of the other elements of the
system including any expansion/extension towers to insure system
level operation and to support concurrent maintenance of the I/O
devices integrated within the system.  The high performance portion
of the system package bolts on to the multi-purpose system package
which it uses to contain the I/O functions needed to implement an
operational minimal system configuration.  That minimal system
configuration may be expanded with additional tower units via optical
bus connections contained in the multi-purpose system tower.

      Communications between the two packaging sections is via cables
passed through a hole cut into each section of the frame of the
bolted together unit.  This is done to preserve the electromagnetic
compatibility (EMC) integrity of the combined units.

      Fig. 2 shows the bolted together configuration, with the
Multi-Purpose System Package 5 shown with all of its covers present,
and the high performance package shown with its covers removed.
Illustrated uniquely in Fig. 2 is the lower three card cage 6 and the
impingement blower assembly 7.  The three card cage 6 accepts two
main storage books and one clock book.  The three card cage 6 mounts
to the backplane assembly 13 shown in Fig. 3.  The impingement blower
assembly 7 consists of two blowers mounted on a plenum assembly which
include ducting to direct impingement cooling air to the four
processor mounted impingement heat sinks.  The ducting insures that
unpreheated air is provided separately to the two front processors
and to the two rear processors.

      Fig. 1 shows the four cover elements mounted to the frame(1) of
the high performance system unit.  The four cover elements consist of
the front cover 9 which includes an air duct with an EMC shield
imbedded, and a totally perforated lower section.  The air duct
provides air flow to the Power supplies, and the totally perforated
section provides cooling air to the processors and main storage
elements of the system.  The side cover 1...