Power supply for a top mounted case

idkwho

Honorable
May 28, 2013
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Hi, I am looking for a 500W power supply for a top mounted case:
http://www.asus.com/Desktops/Essentio_CM6730/

However, I have stumbled upon a problem: the ventilation. The stock PSU in the case is top mounted with a fan facing the rear of the case and no ventilation holes at the top of the case whatsoever.

I was wondering if this PSU I found is suitable for the case as it has the fan on the top of it. Does this mean I would have to mount the PSU fan facing the bottom of the case?

PSU: http://www.scan.co.uk/products/500w-corsair-cxm-builder-series-hybrid-modular-85-eff-80-plus-bronze-sli-crossfire-eps-12v-fan-atx

By the way: Is 450W or 500W PSU better with my PC specs:

i7-3770
GTX 660
8GB RAM
1TB HDD

Thanks for the help