How does the Win7 system customize the mouse DPI? How to adjust the USB mouse overclocking?

In addition to most of the domestic game users, many users do not play games very much, so the requirements for the mouse for this type of user are not very high, the gaming mouse performance must not only have a high DPI, There is also a super high refresh rate, and can the normal mouse under Win7 meet the requirements of gamers? Take a look at the USB mouse overclocking tutorial.

Ordinary USB mouse overclocking method:

Tips: The two most important indicators of the mouse: DPI and refresh frequency. DPI is the number of dots per inch, which is the number of points the mouse moves on the screen for every inch of movement of the mouse. The higher the DPI, the more accurate the positioning. The refresh frequency mainly refers to the refresh frequency of the mouse interface. Currently, the refresh frequency of the USB interface is 125HZ, which cannot meet the data transmission requirements of the high DPI mouse.

The DPI of ordinary mouse is mostly between 400-800. This can't be changed, so what we have to do is to increase the refresh rate of the mouse. We can first test the mouse refresh with mouseterate. Rate, the average mouse value will be lower than 125HZ, so it is necessary to carry out overclocking.

The following steps are taken:

1. First find the C:\\Windows\\System32\\drivers\\usbport.sys file in the partition where the system is located, and then copy it to any directory backup to avoid problems. Can be restored.

Tips: overclocking method is only valid for USB mouse interface.

2, right click on usbport.sys, select Properties, select Security - Advanced, click Edit in the "Owners" setting to change this file authorization to Administrator, and then in the "Permissions" setting Click on "Change Permissions" to search for permissions that can be inherited from the object's parent>, and then give the Administrator full control.

3, drag usbport.sys file using UltraEdit open, Ctrl + F search key press Word: 3C 08 73 09 C6 83 This string, then change this string to “B0 01 73 09 52 8A”, after modification, overwrite the modified file with the original usbport.sys file and restart the computer.

4, then use the software to test Mouserate mouse refresh rate, you can see the refresh rate has become about 360HZ, the author of a gaming mouse, the highest DPI test is 909Hz.

on general USB mouse overclocking

more pictures, but step by step, every step closely, mistakes do not step operation to complete all the steps, the user then open the game, you can feel To a different mouse speed. Before replacing the file, please save the original usbport.sys file.