Superflower leadex gold 650w fan up or down

G

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Guest
Going to build my pc tomorrow, and i am having trouble deciding if i should have my psu fan up or down. Fan down seems the better option for psu temps, however the psu has this ugly sticker shown when fan down.

So how much worse will the temperatures be if i have the psu fan side up, and is it worth making my system look less beautiful for the few degrees? sadly my ambient is usually at 30-35 C, though i do turn on the air cond if i play more more than an hour at a time (which is kind of rare since i started uni)

some specs which might be useful
i7 6700k with an id cooling frostflow 120 aio cooler
jetstream 1070
and a spec 02 case, with 2 intake, 1 exhaust and 1 radiator (pushing out) fan .
 
Solution
I would definitely mount it fan down. Cooler air being drawn into the PSU will help it last longer and send cleaner power. Also you don't want the GPU intake and PSU intake fighting each other. Cover up the sticker.