Log into your dedicated or cloud server as administrator.

Click on: Start
Click on: Control Panel

Under: Control Panel
On the top right
View By: (Click drop down) Category
Click on: Small Category
Click on: Power Options
Under: Power Options
Click on: Choose when to turn off the display (Top left pane)
Under: Change settings for the plan
Click on drop down box: Turn off the display
Select:
1. 1 Minutes
2. 2 Minutes
3. 3 Minutes
4. 5 Minutes
5. 10 Minutes
6. 15 Minutes
7. 20 Minutes
8. 25 Minutes
9. 30 Minutes
10. 45 Minutes
11. 1 Hour
12. 2 Hours
13. 3 Hours
14. 4 Hours
15. 5 Hours
16. Never
Click on: Save Changes
Click on: Apply
Click on: OK