Resolved My keyboard can turn on my computer that has been totally shut down.

In Device Manager-->Keyboard-->Power Management, if and only if 'Allow this device to wake the computer' has been checked, my keyboard can turn on my computer that has been totally shut down.

Does the same happen in your Windows 10?

 

Yes, mine is set in the BIOS. Keyboard and Mouse can start mine - it saves me crouching down to find the comp button. Neil.

 

Both my keyboard and mouse are allowed to wake the computer in Power Management, but only the keyboard can start it.

 

The off button on modern computers is a soft off. There is a little power flowing through the computer to wait for your command to wake it up. As per your BIOS/CMOS settings,it can be woken up by keyboard, mouse or lan card.

 

My computer will start when I have pressed a key, and if I power it down after that, Windows can't be loaded. And then if I press a key again, the computer will not start and I will have to press the power button to start the computer.
Can anyone explain why? Is it because that has to do with Windows but nothing to do with BIOS?

My BIOS settings allow the keyboard only to wake up a sleeping computer but not to start a computer that has been shut down, according to page 1-12 (one dash twelve, not one to twelve) in http://dlcdnet.asus.com/pub/ASUS/mb/LGA1150/H81M-A/E8599_H81M-Series.pdf
So I think BIOS has nothing to do with my case.

I power it down after shutting down the computer, so there should be no power flowing.

 

If you switch off the computer from mains, it is 100% off. But if you shut it down by pushing Shut Down button of your OS, a limit power is running through the motherboard.

 

The fact is that I shut it down by clicking on 'Shut down' and then turn off the power supply, so the computer is 100% off without any power running through the motherboard.

 

Even then are you able to switch it on with keyboard ?

 

Yes, definitely.

I just found that I cannot switch it on with the keyboard if I have disabled hibernation by 'powercfg -hibernate off'.

 

Matthew, do you want this action or do you wish to stop it?
Section 2-5 of your Manual, Page 11 of Section 2 Advanced Menu > APM > should show 6 options for controlling Start requirements.
You don't need to move the jumpers mentioned on 1-12. Leave the jumpers at their Default settings and make the change in BIOS as above. This is what I did and it works. I made no change to the OS Power Management. I believe in the KISS system. Neil.

 

Then something is definitely wrong with your switch. When the switch is off, it shoudln't pass on any current to the attached device.

 

rsinfo, that's Matthews switch you're referring to I hope? Would he have a UPS in operation? Neil.

 

Yep that's the switch that Matthew is throwing off or on.

 

Sorry, there might be misunderstanding, due to my poor English.
If I switch off the extension socket into which the computer is connected, the keyboard cannot start the computer. If I switch on the socket , the keyboard can start the computer.

Actually I want to keep everything unchanged because all is fine. I just wish to know more about it out of curiosity.

The following are the default APM settings, which I have never changed so far.
https://c2.staticflickr.com/6/5701/22881403694_8be33e31f7_o.jpg
All are off/disabled, so I think my case has nothing to do with APM but has to do with Windows.

 

You haven't moved the jumpers as shown in 1-12?
Then we can assume it is being controlled by the OS. Neil.

 

I did move the jumpers long ago, but I soon moved them back to the default positions.

Can that assumption be validated by the fact that the keyboard cannot start the computer when hibernation has been disabled?

 

The assumption will remain until someone (probably MS) can advise another reason or justification for the Start/non-Start protocol.