Vertical or Horizontal?

May be...

Should u leave ur ps3 standing or flat on its bottom?

It really doesn't matter which position you put it in, just make sure there's 6-8 inches of space around all openings on the PlayStation 3 for proper venting and never change the position while the console is running as this could cause damage to any disc you might have in the console. But otherwise it's just a personal decision.

Horizontal because cold air rises and in horizontal position, it would be alot cooler.



Make sure there is atleast 10cm gap for both fans.

What ever looks best to you. Remember the performance will not be affected in what ever the position it's in.