Upside down power supply?

sergioantonio

Honorable
Mar 2, 2017
7
0
10,510
Hi, I'm currently using an old micronics case, one in which you have to place the power supply on the top. I'mcurrently using an Avatec PSA-F600W power supply, which has a fan on the back, but I want to replace it with a more silent power supply. I was wondering if it's safe to use a Cooler Master Elite 460w power supply with my case. I'm asking becasue I'd have to put the power supply on the top with the fan facing down.
 
That's how it has to be installed; it will pull warm air from the case as does the current PSU.