Computer system with multiple switchable power zones

Details Computer system with multiple switchable power zones Computer system with multiple switchable power zones

1998-03-02

2000-05-23

Fleming, Fritz

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

307 31, 36452821, H02J 100

Patent

active

060669004

ABSTRACT:
The present invention provides a computer system having a backplane with a plurality of subsystems which can be individually switched on or off. The computer system comprises a backplane having a plurality of power zones, a power control circuit installed in the backplane for each of the power zones for controlling electric power supplied to the power zone from a power supply, and a subsystem installed in each of the power zones, each of the subsystems comprising an I/O (input/output) bus, at least one I/O slot connected to the I/O bus for connecting an I/O device, and a processor connected to the I/O bus for controlling operations of the subsystem. Each of the subsystems can be switched on or off by using the power control circuit of the power zone of the subsystem.

REFERENCES:
patent: 5378930 (1995-01-01), Kuchenreuther
patent: 5390081 (1995-02-01), St. Pierre
patent: 5572685 (1996-11-01), Fisher
patent: 5650939 (1997-07-01), Yoshida
patent: 5831346 (1998-11-01), Baumann
patent: 5832286 (1998-11-01), Yoshida

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