PSU - Top or Bottom Mount? Tags: New Build Cases Systems Last response: October 12, 2012 2:20 PM in Systems Share jase888 October 12, 2012 12:25:00 PM Hi Having discovered my case has to have the psu mounted at the top I just wondered if there are any differences? I mean pc cases with PSU's mounted on the bottom with the air vent on bottom of the case surely can't get much air in especially if stood on carpet as the feet on cases are never that big. What does everyone recommend, i am building a pc and just wonder weather i should get a case that I can mount my psu to the bottom or stick with the top mounted case? I want to have my PC on though 24/7 so need it to run cool. Thanks More about : psu top bottom mount jase888 October 12, 2012 12:27:43 PM I'm guessing with top mounted you also point the fan to the outside of the case like you do at the bottom or do you have to have it pointed in? luciferano October 12, 2012 12:29:40 PM Bottom-mounted cases usually have the case designed to account for PSUs needing more air from what I've seen. Bottom-mounted is generally considered to be superior AFAIK, but it's really dependent on the situation. Related resources Top or bottom mount PSU ? - Forum Bottom Mount VS Top Mount - Forum Cases w/ Bottom -Mounted PSU 's vs Top -Mounted? - Forum Top vs bottom mounted PSU - Forum Psu ( bottom mount ) fan direction - Forum Can't find your answer ? Ask ! Get the answer williamjuly2003 October 12, 2012 12:36:31 PM Theres no major advantage to mounting it top or bottom for air flow just personally prefernce I'd rather have it on bottom easier to install/unistall it. jase888 October 12, 2012 12:42:38 PM ok thanks guys for feedback. Also the case i am getting (coolmaster 361) has an open slot where you usually put the motherboard but its right at the top where the psu will go why is this? and what is the open slot for, I remember reading its something to do with mounting the cpu is that correct? Thanks again jaideep1337 October 12, 2012 2:20:02 PM I usually prefer bottom mounted PSUs for physical stability. Cases with top mounted PSUs are likely to topple over Can't find your answer ? Ask ! Publish Related resources: ForumIs it okay to install a top mounted PSU in a bottom mounted PSU case? ForumQuestion about HAF case bottom side PSU mount ForumPSU with bottom/top fan mounted upside down on top of case? ForumCase with PSU top vs bottom ForumTop or bottom mounted? ForumPSU for bottom mount ForumCases with bottom PSU mount ? ForumNew Build, any good? ForumPSU 450w or 600w Forum[Solved] Minimum PSU for my new Build ForumNew build 500€-700€-($600-$900)> Mobo,PSU,Case? ForumNew build case and PSU help Forum[Solved] Build Upgrade. Will PSU work still? ForumWill PSU work ok with computer build? ForumWhich PSU would do the trick? More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !