The keyboard and mouse boot function of the motherboard is the most common reason why the mouse still glows after shutdown. In order to realize power management functions such as keyboard and mouse boot, network wake-up, the mainstream ATX12V power supply on the market will provide +5VSB power supply to the motherboard. In other words, the mainstream ATX power supply does not cut off all voltage supply after shutdown, but retains a set of +5VSB outputs to power the motherboard, leaving the motherboard, keyboard, mouse, etc. in standby state. Since most motherboards now support PS/2 keyboard and mouse power on, the power supply still supplies power to the motherboard's PS/2 port after shutdown, leaving the mouse in standby state. The most obvious feature at this time is that the scanning light of the photoelectric mouse will still shine.
If your motherboard only supports PS/2 keyboard and mouse boot, changing to the USB interface of the electric mouse can solve the problem of the mouse still glowing after shutdown. However, there are many motherboards that support PS/2 and USB keyboard and mouse boot at the same time. At this time, no matter if you use PS/2 or USB optical mouse, as long as the keyboard and mouse boot function is not turned off, the mouse will remain in standby state after shutdown. Therefore, the most fundamental solution to this problem is to turn off the PS/2 and USB keyboard and mouse boot functions of the motherboard.
In addition, the mouse light remains unscathed after the host is turned off is also a unique phenomenon for many motherboards that use Intel chipsets. Because the Intel chipset does not cut off the 220V mains power supply (that is, the power supply is also powered), its USB port will randomly provide a voltage output of 0.9V-2.5V. If you are using a USB optoelectronic mouse at this time, the mouse scanning and so on will still light up.
How to turn off the keyboard and mouse boot function
If your motherboard only supports PS/2 keyboard and mouse boot, changing to the USB interface of the electric mouse can solve the problem of the mouse still glowing after shutdown. However, there are many motherboards that support PS/2 and USB keyboard and mouse boot at the same time. At this time, no matter if you use PS/2 or USB optical mouse, as long as the keyboard and mouse boot function is not turned off, the mouse will remain in standby state after shutdown. Therefore, the most fundamental solution to this problem is to turn off the PS/2 and USB keyboard and mouse boot functions of the motherboard.
In addition, the mouse light remains unscathed after the host is turned off is also a unique phenomenon for many motherboards that use Intel chipsets. Because the Intel chipset does not cut off the 220V mains power supply (that is, the power supply is also powered), its USB port will randomly provide a voltage output of 0.9V-2.5V. If you are using a USB optoelectronic mouse at this time, the mouse scanning and so on will still light up.
How to turn off the keyboard and mouse boot function
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