Method for monitoring PCI Express plate card and apparatus thereof

A technology for boards and monitoring circuits, applied in hardware monitoring, energy-saving ICT, sustainable buildings, etc., to achieve the effects of noise reduction, simple and easy methods and devices, and high cost performance

Inactive Publication Date: 2005-04-27
李诚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the present invention is exactly at the appearance of new technology, provides a kind of method and device thereof with SMBus chip monitoring device on the computer PCIExpress board card, solves problems such as temperature, fan speed and voltage measurement of device on the computer PCI Express board, and then according to Its temperature automatically adjusts the speed of the fan on the PCI Express board, and communicates through SMBus

Method used

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  • Method for monitoring PCI Express plate card and apparatus thereof
  • Method for monitoring PCI Express plate card and apparatus thereof
  • Method for monitoring PCI Express plate card and apparatus thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Such as image 3 In this example, use the SMBus interface on the PCI Express X16 slot, connect SMBCLK and SMBDAT to the SMBus chip on the PCI Express board, that is, connect the 7 pins and 8 pins of the LM63, and use the LM63 chip as the monitoring chip in the device. Here LM63 is a slave device on SMBus. The device address of LM63 is 1001100. The main functions of LM63 are as follows:

[0059] Use 2N3904 transistor or PN junction temperature measurement, D+, D- terminal input

[0060] Automatic correction of self-heating effects

[0061] ·Support P4 or P4-m processor's built-in diode temperature measurement method

[0062] Integrated PWM fan speed control function, PWM terminal output

[0063] ·Programmable multi-level variable speed adjustment to reduce noise

[0064] ·With fan speed counting, TACH terminal input

[0065] · Register Compensation Offset Temperature

[0066] ·Multi-function anti-ALERT / speed counter selection input

[0067] 10-digit counting, the ...

Embodiment 2

[0074] Invention circuit principle part such as Figure 4 In this example, the PCI Express X16 slot of the computer is used, and there is an SMBus expansion interface on the PCI Express X16 slot, and SMBDATA and SMBCLK are introduced from the SMBus of the PCI Express slot to the device monitoring circuit of the PCI Express X16 board of the computer, and the SMBus chip is connected to the SCL and SDA of IC W83L785. The W83L785 used in the PCI Express X16 device monitoring circuit is often used in the hardware monitoring circuit of notebook computers. The device address of W83L785 is 0101101. It can monitor parameters including: voltage, temperature, fan speed, etc., with a built-in 8-bit ADC and 2 sets of PWM Output to control fan speed, provide SMI#, OUT# signal and GPIO, with I2C / compatible SMBus interface, through application software and BIOS, users can monitor all parameters at any time, and send a warning message when the parameters exceed the limit, users can set the par...

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Abstract

The present invention discloses one PCI Express card monitoring method and device, and relates to computer bus expansion and chip application. The present invention has expanded SMBus and SMBus chip in PCI Express card, and measured device parameters, such as fan rotation speed and temperature, are fed to the chip, operated inside the chip, output and amplified to drive the fan and to constitute closed loop. The device consists of monitoring chip, temperature sensor, amplifying driver, fan, power source, rotation speed measuring and matching circuit, SMBus, etc. on PCI Express board. Forming the PCI Express monitoring card for measuring and controlling the fan on the board can lower noise and reduce power consumption, and the communication between SMBus and the system unit is favorable to management of the computer system.

Description

technical field [0001] The present invention relates to the expansion and application of serial bus and its devices in computers, in particular to a method for monitoring devices with a system management bus (also known as SMBus) integrated circuit (IC) chip on a PCI Express board and its device. Background technique [0002] PCI Express bus PCI Express is a new generation bus interface. Intel Corporation proposed to use a new generation of technology to replace the internal connections of the PCI bus and various chips, and called it the third generation I / O bus technology. Subsequently, many industry companies including Intel, AMD, DELL, and IBM began to draft the specifications of the new technology, which were completed in 2002. PCI Express adopts the current popular point-to-point serial connection in the industry. Compared with the shared parallel architecture of PCI and earlier computer buses, each device has its own dedicated connection. It does not need to request ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/30
CPCY02B60/165Y02D10/00
Inventor 李诚
Owner 李诚
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