After the computer is shut down, how to set off the power supply system in the BOSS?

After the computer is shut down, how to set off the power supply system in the BOSS?

After the host shuts down, the mouse lamp does not extinguish, also is the phenomenon which uses many Intel chip group motherboard. Because the Intel chip group in 220V do not cut electricity supply situation (i.e., power supply and power supply), provide a voltage output 0.9V-2.5V of the USB port will be random, if you are using the USB optical mouse, so the mouse scan will still be bright. Due to the different stages of the motherboard for keyboard, mouse boot function settings vary,

If you only support the motherboard PS/2 keyboard, mouse boot, then use the USB interface of the electric mouse can solve the problem that the mouse still shines after shutdown. But now there are many motherboard supports both PS/2 and USB keyboard and mouse boot, then mouse whether we use PS/2 or USB interface, as long as the keyboard and mouse boot function is not closed, so the mouse will after the shutdown has been in standby state. Therefore, to solve this problem, the most fundamental solution is to turn off the main board of PS/2, USB keyboard and mouse boot function.

Motherboard keyboard and mouse boot function is the most common reason causing the mouse still shine after the shutdown, in order to realize the keyboard and mouse boot, WOL etc. power management function, the ATX12V power market mainstream will provide +5VSB power to the motherboard. In other words, the mainstream ATX power supply does not cut off all the voltage supply after the shutdown, but retains a set of +5VSB output for the motherboard power supply, so that the motherboard, keyboard, mouse and other hardware in standby state. Because now most motherboards support PS/2 keyboard and mouse boot, so shut down after the power is still in the motherboard PS/2 power supply, so that the mouse is in a standby state, when the scanning lights the most obvious feature is the optical mouse still shine.

At present, the vast majority of motherboard BIOS are provided on the keyboard and mouse boot settings, you can enter the main menu of BIOS "Power Management Setup" page, find "S3 KB Wake-Up Function" or similar meaning options (such as "Resume On KBC", "Resume On PS/2 Mouse"), set the "Disable", close the motherboard power +5VSB on the keyboard and mouse, PS/2 mouse shutdown after naturally not bright.

With the application of USB peripherals more and more widely, many motherboards also provide USB keyboard and mouse boot function. On these motherboards, USB photoelectric mouse will continue to emit light after shutdown. To disable this function and close the PS/2 keyboard and mouse boot function is similar, you enter the main menu of BIOS "Power Management Setup" page, "USB Wake-Up From S3" or similar meaning option is set to "Disable" can be. I believe that BIOS has a certain understanding of friends, even if you do not look at the motherboard manual, you can easily get these settings.