Power-on method for computer system that copies BIOS into...

Details Power-on method for computer system that copies BIOS into... Power-on method for computer system that copies BIOS into...

2005-05-23

2008-12-23

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

Loading initialization program

C711S118000

Reexamination Certificate

active

07469335

ABSTRACT:
A power-on method for a computer system comprising a processor supporting Hyper-Threading, a Read Only Memory (ROM) and a main memory, wherein the processor comprises a cache memory and the ROM comprises BIOS codes. The power-on method comprises the following steps. First, the processor is initialized in a Hyper-Threading disabled mode. The BIOS codes is then copied from the ROM to the cache memory, and the main memory is initialized by executing the BIOS codes therein. Thereafter, the processor is re-initialized in a Hyper-Threading enabled mode after the main memory is initialized. The processor comprises a first logic unit and a second logic unit. When initializing the processor, a first potential is applied to pin A31of the processor, and a reset signal is delivered to the processor while the pin A31is at the first potential, such that the processor is initialized in the Hyper-Threading disabled mode.

REFERENCES:
patent: 7216223 (2007-05-01), Michaelis
patent: 7254676 (2007-08-01), Datta et al.
patent: 2004/0103272 (2004-05-01), Zimmer et al.

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