Ok so I put the ice in the top row...and it made a huge difference. But not in a good way. It heated up much quicker, and the remote thermal monitor was turning it off every second. That's pretty interesting to know though! I probably would have done that on my own anyway. Good to know!
No wonder because Ice in bottomrow IS BETTER. And the calculation is not weird, its simple. Its just iterating the Components:
Toprow from left to right, then Secondrow from left to right, ... then Bottomrow from left to right.