Device capable of detecting BIOS status for clock setting...

Details Device capable of detecting BIOS status for clock setting... Device capable of detecting BIOS status for clock setting...

2007-10-23

2007-10-23

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S051000

Reexamination Certificate

active

10813020

ABSTRACT:
A method capable of detecting a status of a basic input/output system (BIOS) for setting a clock is applied to a clock generating device of a computer motherboard and sets the clock according to a signal status of the BIOS or a trigger signal. A device capable of detecting the BIOS status for setting the clock is also proposed. The device has a crystal oscillator, a frequency control unit, a phase-lock-loop (PLL) spread-spectrum unit electrically connected with the crystal oscillator and the frequency control unit, a memory unit having a clock setting value stored therein, a detection control unit electrically connected with the memory unit and used to detect a signal status, and a logic control unit electrically connected with the PLL spread-spectrum unit, the frequency control unit and the detection control unit.

REFERENCES:
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patent: 6535988 (2003-03-01), Poisner
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patent: 2003/0065966 (2003-04-01), Poisner
Kozierok, Chrales M., Overclocking CPU's—A Risky Route To Free Performance, Jun. 1998, Smart Computing, All Pages.

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