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Method and its device for monitoring and controlling computer casing using system managing bus chip

A system management bus, monitoring computer technology, applied in hardware monitoring, electrical digital data processing, digital data processing components and other directions, can solve problems such as no way of knowing the status, hard disk cooling fan power supply fan no speed adjustment, noise, etc., to achieve performance The effect of high price ratio, simple method and device, and broad application prospect

Inactive Publication Date: 2005-05-18
李谦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the prior art has had the above-mentioned various developments, the monitoring of equipment in the computer case is limited to the monitoring circuit on the computer motherboard, and does not solve the monitoring of other equipment in the case, such as hard disk cooling fans, case fans and power supply fans. Neither has speed regulation and no way of knowing their status
The temperature of the equipment in the chassis has nothing to do with the fan speed, and the fan speed cannot be automatically adjusted according to the temperature. The fan is always running at full speed, and there is a certain amount of noise

Method used

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  • Method and its device for monitoring and controlling computer casing using system managing bus chip
  • Method and its device for monitoring and controlling computer casing using system managing bus chip
  • Method and its device for monitoring and controlling computer casing using system managing bus chip

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Such as image 3 In this example, the computer uses an ASUS dual CPU server motherboard, the model is PR-DLS533. On this motherboard there are also Intel South Bridge chip CSB5 (Champion South Bridge 5) and SMBus bus expansion device plugs, such as Figure 4 , Connect SCL and SDA to the chassis equipment monitoring circuit from it, that is, connect the 7 feet and 8 feet of the LM63. The LM63 chip is used as the monitoring IC chip in the circuit, where LM63 is a slave device on the SMBus bus, and the device address of LM63 is 1001100, the main functions of LM63 are as follows:

[0054] ·Use 2N3904 transistor or PN junction temperature measurement, D1, D2 input

[0055] ·Automatically correct self-heating effect

[0056] ·Support P4 or P4-m processor's built-in 2-electrode temperature measurement method

[0057] ·Integrated PWM fan speed control function, PWM output

[0058] ·Programmable 8-level variable speed adjustment to reduce noise

[0059] ·Fan speed counting, TACH inp...

Embodiment 2

[0069] Invented circuit principles such as Figure 5 In this example, the computer motherboard uses Abit’s IS7 series. The motherboard has a South Bridge ICH5 (82801EB) chip and SMBus bus expansion device plugs, such as Figure 6 , Lead SMBDATA (SDA) and SMBCLK (SCL) from the SMBus bus plug on the motherboard of the computer host to the computer chassis equipment monitoring circuit, connect the SMBus bus of the IC chip, to the SCL and SDA of the circuit W83L785. In the chassis equipment monitoring circuit, the monitoring IC chip is W83L785. W83L785 is often used in the hardware monitoring circuit of notebook computers. The device address of W83L785 is 0101101. The monitoring parameters include: voltage, temperature, fan speed, built-in 8-bit ADC, and 2 groups PWM output controls the fan speed, provides SMI#, OUT# signals and GPIO, with I2C / compatible SMBus bus interface, through the application software and BIOS, the user can monitor all parameters at any time, and send a warning ...

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Abstract

The present invention relates to serial computer bus, its device and expanding application. The present invention adopts the built-in control function of SMBus IC chip, and has temperature sensors to measure the temperature of devices inside casing, temperature feedback signal to the IC chip for calculation and amplifier circuit to amplify the outer of the IC chip for controlling the fan to constitute one closed-loop control system. The device consists of casing monitoring IC chip, temperature sensors, amplifying and driving circuit, fan, power source, rotation speed measuring and matching circuit, voltage dividing circuit and SMBus. The present invention has the beneficial effects of constitution of intelligent casing system, measurement and control of fan rotation speed, lowering noise, environment protection, saving in energy, and management of devices inside the casing via communication between SMBus and system unit.

Description

Technical field [0001] The present invention relates to the extended application of a serial bus and its devices in a computer, in particular to a method for monitoring equipment and devices in a computer chassis by using a system management bus (also called SMBus bus) integrated circuit (IC) chip Device. Background technique [0002] Computer case The computer case is the home of the computer. The common forms are ATX and MicroATX, while the computer server case is larger. You can install the motherboard, CPU, memory, hard disk, optical drive and case power supply in it, or expand SCSI, I / O capture board, etc. For computers that generate more heat, the case can be cooled by multiple fans. One of the equipment in the case is the case power supply. The case power supply is the energy source of the computer. The case power supply is placed in the computer case. It inputs 220V / 110V AC power, and finally outputs DC to the computer after rectification and filtering, PWM control, and ...

Claims

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Application Information

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IPC IPC(8): G06F1/20G06F11/30
CPCY02D10/00
Inventor 李谦
Owner 李谦
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