Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have an interesting query, my cat can turn on my computer by walking/laying on my keyboard when it is powered off, but I cannot find a way to do this intentionally.

I have tried to google it, but I am only finding people asking how to do it, and people saying it is not possible.... it is possible for me, as my cat can do it, I just have no idea how! I have poked some buttons and looked around the BIOS settings and have not found anything.

Any ideas?

Gigbyte GA-MA785GMT-UD2H motherboard (Windows 7 machine) with Apple USB Keyboard (full)

share|improve this question

closed as not constructive by slhck May 20 '13 at 7:42

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

    
Does the keyboard have a Power on/off button? –  Kevdog777 May 17 '13 at 14:27
5  
put your cat on your keyboard? –  Journeyman Geek May 17 '13 at 14:33
    
@Adam Heath: Are you sure you don't have an old PS/2 mouse and the cat isn't clicking it? –  James May 17 '13 at 14:47
1  
Perhaps your cat's a distant relative of Schrödinger's pet and has figured out how to create a quantum computer that is both on and off at the same time! –  Karan May 17 '13 at 15:46
1  
How many times did your cat manage to do this? It matters in the way to rule out some possibilities mentioned below like: 'was your computer in sleep mode that one time?', 'was your keyboard plugged in a different port?'.. And maybe it means you can just put up a camera and learn from your cat how to do it?! –  Yoh May 17 '13 at 15:50

2 Answers 2

You need to ensure that USB Wake Up from S3 is set to Enabled and Power On By Keyboard is set to Any Key. These are under Power Management Setup:

BOIS Power Management

Note, image shows Power On By Keyboard as Disabled, and you want it Enabled.

If your system is configured as per the defaults (like the above image), then your cat can wake your system when it is suspended, but not actually start the computer from a cold boot. This might explain your confusion.

The above image is specifically for the Gigbyte GA-MA785GMT-UD2H, but every motherboard I can recall using has similarly named options.

share|improve this answer
1  
It is turning it on, as in a cold boot. It wakes from sleep as any usual computer would, with any key, but the combination to power on is known only to my cat.... :( –  Adam Heath May 17 '13 at 14:35
    
Make sure the keyboard is plugged into the top pair of USB ports on the back. I've had motherboards where they don't watch all the USB ports for signals when they're off. –  Darth Android May 17 '13 at 14:38

If the computer is in sleep the keyboard can wake it. You can control this from the Keyboard properties control panel.

Goto Control Panel and type keyboard. Select Keyboard and then on the Hardware tab select your keyboard. On the Power Management tab you uncheck the option.

enter image description here

share|improve this answer
    
This would only help if the computer was on standby with Windows already loaded and the OP has made it clear that he is talking about a cold boot. –  James May 17 '13 at 15:52

Not the answer you're looking for? Browse other questions tagged or ask your own question.