View Full Version : Mounting a power supply upside down...
Aynjell
04-14-09, 10:45 PM
I'm considering mounting my power supply upside down to bring the connector leads closer to my motherboard panel.
i've ordered a 750 silencer and an antec 900, and will be cutting a hole to hide the cables. But the power supply, mounted with caps pointing up, puts the leads farthest from the wall. Any harm in mounting it upside down so that leads are closer to the wall, or should I avoid that?
hokiealumnus
04-14-09, 11:44 PM
I wouldn't imagine that being a problem. Seen lots of builds with them mounted up-side-down in bottom-PSU-mount cases. Never heard of a problem before, FWIW.
There is no upside down in PSUs. Just avoid mounting it with the fan facing a wall directly.
Aynjell
04-15-09, 12:15 AM
There is no upside down in PSUs. Just avoid mounting it with the fan facing a wall directly.
Well, I mean, do I want to avoid the stuff hanging from the PCB and keep the PCB under the components, or is it okay to have it hanging from the PCB. That's what I mean by upside down.
Niku-Sama
04-15-09, 01:14 AM
look at your videocard, or any card for that matter
Aynjell
04-15-09, 01:16 AM
look at your videocard, or any card for that matter
My video card doesn't have capacitors the size of my fist.
Niku-Sama
04-15-09, 01:18 AM
no but it has caps and a huge heatsink made of copper....probally
its all relative, the regulators and caps are bigger in PSUs but so are the leads that they are soldered to the board with.
or it should be, if they dont have bigger leads its probally a crap bulit PSU
edit:
ok i shoulda brought this up before....
you know those PSUs that mount normally but have the 120mm fan in the bottom of them that suck air up from the motherboard?
where do you think the PCB is on those?
yea they are big capacitors but they dont weigh much, and if something does fall off inside when its mounted then i should think it be qualifications enough for an RMA
Aynjell
04-15-09, 01:31 AM
no but it has caps and a huge heatsink made of copper....probally
its all relative, the regulators and caps are bigger in PSUs but so are the leads that they are soldered to the board with.
or it should be, if they dont have bigger leads its probally a crap bulit PSU
edit:
ok i shoulda brought this up before....
you know those PSUs that mount normally but have the 120mm fan in the bottom of them that suck air up from the motherboard?
where do you think the PCB is on those?
yea they are big capacitors but they dont weigh much, and if something does fall off inside when its mounted then i should think it be qualifications enough for an RMA
Yeah, but it's also a good idea not to abuse the components. I'll see if it actually benefits me to do it this way, or if it's even neccessary.
Niku-Sama
04-15-09, 02:07 AM
i fail to see how its abuse but what ever, i tried
Aynjell
04-15-09, 02:08 AM
i fail to see how its abuse but what ever, i tried
See, you're example falls on deaf ears, though. Those corsair power supplies dont have such high rising components as the PC power unit I'm recieving. I think there's a legitimate issue here, and I'm hoping to hear from somebody like Oklahoma Wolf on this issue.
Leonardo
04-15-09, 02:13 AM
PSUs can be mounted in the traditional manner or "upside down." Some cases are purposefully designed for the 'top' fan to face down. Case in point (pardon the pun) is a Lian Li (ta da - Rocketfish) I have. If a PSU is so poorly built. tso that there's a risk of dislodging components by flipping it 180 degrees, then that PSU won't last more than three or four on/off cycles anyway.
As long as there is adequate clearance for the intake to draw fresh air, it is completely inconsequential how the internal components are arrayed with respect to the case sides or bottom.
Aynjell
04-15-09, 02:19 AM
PSUs can be mounted in the traditional manner or "upside down." Some cases are purposefully designed for the 'top' fan to face down. Case in point (pardon the pun) is a Lian Li (ta da - Rocketfish) I have. If a PSU is so poorly built a risk of dislodging components by flipping it 180 degrees, then that PSU won't last more than three or four on/off cycles anyway.
As long as there is adequate clearance for the intake to draw fresh air, it is completely inconsequential how the internal components are arrayed with respect to the case sides or bottom.
I suppose I can live with this argument. I'm going to call PC Power & Cooling and make sure this is acceptable, prior to my installing it, however.
I have my PSU mounted upside down. It's worked for 3 years now, through multiple exchanges of components, nothing bad has ever happened to it or anything.
I don't really get what kind of answer you're looking for, multiple people have stepped up and told you it's perfectly fine, but you argue that it's not. If you feel so uncomfortable with it, just don't do it?
Pandam00nium
04-15-09, 03:17 AM
Why should it matter which way it's mounted? There are no moving parts other than the fan. If you're worried about components falling apart from hanging then you should probably blame the shoddy solder work, but there's no reason to worry about it. If it was something to worry about then it would have been addressed a long time ago. You really think PSU/Case manufacturer's would want to deal with something like this if it caused problems?
Aynjell
04-15-09, 03:36 AM
I have my PSU mounted upside down. It's worked for 3 years now, through multiple exchanges of components, nothing bad has ever happened to it or anything.
I don't really get what kind of answer you're looking for, multiple people have stepped up and told you it's perfectly fine, but you argue that it's not. If you feel so uncomfortable with it, just don't do it?
I don't see your point. I've conceded completely. I simply stated I was going to call PC power & cooling themselves to make sure they thought it would be fine and that it wouldn't invalidate the warranty at all.
Why should it matter which way it's mounted? There are no moving parts other than the fan. If you're worried about components falling apart from hanging then you should probably blame the shoddy solder work, but there's no reason to worry about it. If it was something to worry about then it would have been addressed a long time ago. You really think PSU/Case manufacturer's would want to deal with something like this if it caused problems?
Should and do, two completely different matters. My question I suppose, should have been phrased: Has anybody had any problems with this? Also, the computer moves INCREDIBLY frequently. It leaves the house every saturday or sunday for lan parties.
freeagent
04-15-09, 08:06 AM
for the last couple of years ive been bouncing back and forth from atx to reverse atx, theres no problem really.. mount it sideways if you want :D
hokiealumnus
04-15-09, 08:41 AM
for the last couple of years ive been bouncing back and forth from atx to reverse atx, theres no problem really.. mount it sideways if you want :D
In fact, some Mountain Mods cases have sideways mounting.
It really doesn't matter how you mount your PSU. I've used Corsair units for years, mounted the right way (which means PCB on top b/c of the fan) and not had any problems. You mention that "Those corsair power supplies dont have such high rising components as the PC power unit I'm recieving.", but they have the same design on all units from the 450W to the 1000W unit. All solid PSUs and I've never heard of anyone having a problem.
The short of it is that if the PSU isn't absolute crap, it is completely irrelevant how it's mounted as long as it has good air flow.
Neuromancer
04-15-09, 09:25 AM
Yah I run sideways when I run my PC caseless for testing.
Only drawback to running PSU upside down is that it might collect more dust if your PC spends much time off.
Niku-Sama
04-15-09, 02:31 PM
See, you're example falls on deaf ears, though. Those corsair power supplies dont have such high rising components as the PC power unit I'm recieving. I think there's a legitimate issue here, and I'm hoping to hear from somebody like Oklahoma Wolf on this issue.
i think the only reason my reasons are falling on deaf ears is because you already have it set in your mind that its going to cause some damage or another and sub conciously youve already made up your mind.
seriously dude, its no problem, like others have said before if theres any risk with mounting it up side down then they probally wont last long tobegin with and wouldnt be something people would buy
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