BIOS Management Device for Automatic CMOS Reset via Switch Detection
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Solution Overview
Problem
Improper BIOS settings can cause computer crashes and damage, and existing methods for restoring BIOS settings are complex and inconvenient, requiring users to physically shut down the computer and access internal components.
Innovation Solution
A BIOS management device and method that uses a switch and chipset to detect a restoring event, generating a voltage signal to shut down the computer and restore BIOS settings to a default state, eliminating the need for manual intervention and reducing hardware damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional method of clearing CMOS is used (pressing power button for four seconds, opening housing, using jumper), then the BIOS setting values can be restored, but the process is very complicated and the jumper is very small and often lost
Solution Approach 1:
The patent extracts the BIOS restoration function from the complex physical jumper operation and relocates it to a software-based solution. A specific key combination (Ctrl+Alt+B) is assigned to trigger the restoration of BIOS settings, eliminating the need for physical access to internal components. This extraction transforms a hardware-dependent, multi-step process into a simple software command that can be executed from the operating system.
Solution Approach 2:
The patent introduces an intermediary mechanism - a keyboard driver and system call interface - that mediates between the user's key press action and the BIOS restoration function. Instead of directly manipulating hardware jumpers, the user interacts with a software intermediary (the designated key combination) that translates the input into the appropriate system action, making the process more accessible and less error-prone.
2Reliability
If the BIOS is improperly set, then the computer can be caused to crash, but the user cannot restore the BIOS by the common method when the computer cannot be booted
Solution Approach 1:
The patent implements preliminary action by installing a keyboard driver and setting up the restoration mechanism before any BIOS corruption occurs. The system is pre-configured with the knowledge that restoration may be needed, and the appropriate driver and system calls are in place beforehand. This allows the restoration function to be activated immediately when needed, even in crash states, without requiring reconfiguration or physical intervention.
Solution Approach 2:
The patent enables the system to serve itself by implementing an automated restoration process. When the designated key combination is pressed, the system automatically initiates the BIOS restoration sequence through pre-configured system calls and driver routines, eliminating the need for user intervention in hardware manipulation. The system handles the entire restoration process internally, making it accessible even when the computer is in a non-bootable state.
3Ease of repair
If the user needs to open the housing and use a jumper to clear CMOS, then the BIOS setting values can be restored, but the actions are very complicated and the jumper is very small and often lost
Solution Approach 1:
The patent replaces the mechanical system of physical jumpers and manual housing manipulation with an electronic/software-based system. Instead of using a physical jumper to short circuit specific pins on the motherboard, the invention uses a keyboard driver and system call mechanism to trigger the BIOS restoration function electronically. This substitution eliminates the need for small physical components that can be lost and simplifies the repair process to a simple key press action.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a convenient and safe method to restore BIOS settings to default, preventing crashes and hardware damage by automatically shutting down the computer and clearing CMOS settings when an improper setting is detected, thus simplifying the process and protecting the system.
Implementation Method 1
The switch is exposed outside the computer and is used for generating a voltage signal, and the generating of level of the voltage signal is based on the state of the switch
Data Source
AI summary
The invention provides a BIOS management device and a method for managing a BIOS setting value. The invention determines whether to shut down a computer and to restore the BIOS setting value to a default state by detecting whether a restoring event occurs. In addition, the computer is shut down and the BIOS setting value is restored to the default state when the restoring event occurs. Therefore, the fault caused by the improper setting of the BIOS is eliminated.