Solution of luminescence problem after computer mouse shutdown

why the mouse still glows after shutting down the computer

The motherboard's keyboard and mouse boot function is caused by the mouse after the shutdown is still the most common cause of light--in order to achieve keyboard and mouse boot, network wake-up power management functions, the current market mainstream atx12v power supply to the motherboard to provide +5VSB power. In other words, the mainstream ATX power supply in the shutdown did not cut off all the voltage supply, but retained a group of +5VSB output for the main board power, so that the motherboard, keyboard and mouse hardware in standby state. Because the majority of motherboards now support PS/2 keyboard mouse boot, so the power supply after the shutdown is still the motherboard's PS/2 power supply, so that the mouse in standby state, this time the most obvious feature is the photoelectric mouse scanning lights will still glow.

If everyone's motherboard only supports PS/2 keyboard mouse boot, the switch with the USB interface of the mouse will be able to solve the shutdown after the mouse still glow problem. But now there are many motherboards also support PS/2 and USB keyboard mouse boot, at this time, whether we use the PS/2 or USB interface of the optical mouse, as long as the keyboard mouse boot function is not closed, then the mouse after the shutdown will be in standby state. So to solve this problem the most fundamental solution is to turn off the motherboard ps/2, USB keyboard mouse boot function.

In addition, the main machine after the mouse light is also a lot of use of Intel chipset-specific motherboards are unique phenomenon. Because the Intel chipset does not cut off 220V mains power (that is, the power supply), its USB port will be random to provide 0.9v-2.5v voltage output, if you are using a USB optical mouse, then the mouse scan will still be bright.

　　How to turn off the keyboard mouse boot function

Due to different periods of the motherboard for the keyboard and mouse boot function settings are different, so to turn off the keyboard and mouse boot function of the method is divided into the following two kinds:

　　1, in the BIOS to turn off the keyboard and mouse boot function

At present, the majority of motherboards in the BIOS provides the keyboard and mouse boot function, you can enter the BIOS main menu of the "Power Management Setup" page, find "S3 KB wake-up function" or the meaning of similar options (such as " Resume on KBC "," Resume on Ps/2 Mouse ", and so on), set it to" Disable "(as shown in the following image), turn off the motherboard for the keyboard and mouse +5VSB power supply, PS/2 Optical mouse after the shutdown naturally will not be lit.

In addition, with the application of USB peripherals more and more widely, many motherboards also provide a USB keyboard and mouse boot function, in these motherboards USB optical mouse will continue to glow after the shutdown. The process of turning off this feature is similar to turning off the PS/2 keyboard mouse boot function, and everyone enters the "Power Management Setup" page of the BIOS main menu and sets the "USB wake-up from S3" or the meaning similar option to "Disable". I believe that a friend with a certain knowledge of the BIOS can easily handle these settings without looking at the motherboard instructions.

　　2. Change the motherboard jumper

For some early-listed old model motherboards, because the motherboard BIOS function is relatively single, these motherboards can only use the jumper mode to turn on or off the keyboard mouse boot function. To turn off the keyboard and mouse boot function, we must change the connection status of the corresponding jumper. To this end we must carefully read the motherboard manual-the old motherboard on a wide range of jumpers, if you do not know the meaning of the jumper casually set jumpers, light affects the normal function of the motherboard, heavy damage to the motherboard, which we should be particularly careful.

　　The ultimate method to solve the luminescence of the photoelectric mouse shutdown

Although the above two methods can solve the problem that the mouse still glows after most shutdown, they are not omnipotent. Because some motherboards provide a keyboard and mouse boot function, the BIOS on the motherboard does not provide a setting to turn off this feature, and there are no jumpers on the motherboard. In addition, some of the Intel chipset boards that we mentioned before were randomly powering the USB port and could not be turned off via BIOS or jumper settings. If you use the USB optical mouse on the motherboard above, the mouse scan light will not go off.

In fact, these two special situations are actually normal phenomena, neither the USB device will have an impact, there is no security risks. However, if people feel that after the shutdown is still lit by the mouse lights are really uncomfortable, then you can choose the most ultimate, the most useful way: cut off the 220V mains power supply, that is, unplug the power cord or the total switch off the socket (many friends will be the computer host and monitor, The power cord of the speaker is concentrated on one outlet. This eliminates the shutdown after the mouse lights the problem, but also save the monitor and motherboard in standby power consumption (although the power is very small, but can save is a good feeling)