Final answer:
To wake up a computer from sleep mode with a keyboard, ensure the keyboard is allowed to wake the PC in the device manager settings, press a key such as 'Enter' or 'Spacebar', or use the 'Power' button if available on the keyboard. If these steps fail, check the BIOS settings for the 'USB Wake from S3' option.
Step-by-step explanation:
How to Wake Up Your Computer from Sleep Mode with a Keyboard
To wake up a computer from sleep mode using a keyboard, follow these steps:
Firstly, check if your keyboard has the ability to wake the computer. You can do this by going into the device manager, finding your keyboard in the list, right-clicking on it, and selecting 'Properties'. Under the 'Power Management' tab, see if the 'Allow this device to wake the computer' option is checked. If it's not, check it and click 'OK'.
Once you have ensured your keyboard has the permission to wake the computer, try pressing any key on the keyboard to wake the computer up. Common keys used for this purpose include the 'Enter' key or the 'Spacebar'.
If the computer doesn't wake up after pressing a key, try pressing the 'Power' button on the keyboard if there is one. Some keyboards come with a dedicated sleep mode button or power button for this function.
If these steps don't work, you might need to check your computer's BIOS settings. Ensure that the 'USB Wake from S3' or similar settings are enabled. This will allow USB devices such as your keyboard to wake the computer from sleep mode.
If the problem persists, consult your computer or motherboard manual for more specific instructions, as the steps can vary depending on the make and model of your system.