Here are a few simple things you can do to prevent your server and network equipment from overheating and crashing:

  1. Tidy up the server room; a neater room will increase air flow.
  2. If you have more than one server, arrange them in a row so that the cold air comes from the front and is expelled out the back.
  3. Keep the doors to the server room closed and seal off the space.
  4. Make sure cold air reaches all the equipment.
  5. Have a redundant A/C that is specifically designed for computers.
  6. Buy a rack enclosure where the cooling is built in to the bottom of the rack.
  7. Keep the temperature at no more than 77 degrees
  8. Use blanking panels over any empty spaces on your server rack.
  9. Consider virtualization or hosting in a cloud environment so you are generating a lower amount of heat in the first place.