Noctua NH D14, which way up?

[Born_2_Kill_83]

Going to be putting a Noctua NH D14 into a Antec 902 case, Ive seen a couple of ways of doing it as follows:

Pros- CPU fans take heat upwards (hot air rises) to massive exhaust fan at top of case
Cons- CPU fans pulling heat from GPU and no real airflow

Pros- Good airflow from front to back of case
Cons- Small exit fan at the back of case

Which way would you go? Votes please

 

[mmj_uk]

By the look of it having it vertical also blocks out some expansion slots, so I'd go with it horizontal.

Neither is ideal though because it's likely to be blowing dirty air in that case whichever orientation you use.