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Is my Airflow sufficient? - Page 5

post #41 of 50
Quote:
Originally Posted by Vagrant Storm View Post

That is unlikely...possible I guess. It would be just as possible for it to fry your PSU though.
And not all mother boards have fan controllers in them. Every one I've seen has had one on the CPU fan power, but I've seen some that don't have any control on the case fan power points.

Look up the wattage rating of molex lead and look up the wattage ratings of your motherboard fan headers mate!
post #42 of 50
is your computer hovering a foot or so above the desk? IF yes, then MAYBE your airflow is sufficient. IF no, add more fans | alternatively add water cooling
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post #43 of 50
If there is a side panel fan mount on the case put a fan on intake there and exhaust e H100. Too much positive pressure is going to trap the air and resist your airflow.
You may also consider rear intake and Top and front exhaust
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post #44 of 50
Quote:
Originally Posted by doyll View Post

Look up the wattage rating of molex lead and look up the wattage ratings of your motherboard fan headers mate!

And look up the power usage of a fan...

Plus, if it shorts...it will short at the max rating the line can provide. A short will take full bore of what can come through. A motherboard might be able to survive the puny wattage rating on the power point. A PSU might not survive a full short on its 5v rail
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post #45 of 50
I'm just throwing this out there, but a fan used a MASSIVE......

3w or so. Generally lower than that -__-

Yep, that is gonna fry the motherboard and burn down the house while it's at it lachen.gif
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post #46 of 50
Many fans are rated .3 -.6 amp.
Motherboard fan sockets are rated at a couple of amp each
That means 4x .6 amp fans are 2.4 amp at full load.. .4 amp more than motherboard socket is rated.

Even fan controller are rated.

Your choice. Plug in too many high power fans and something will eventually fail. biggrin.gif
post #47 of 50
Quote:
Originally Posted by snipekill2445 View Post

I'm just throwing this out there, but a fan used a MASSIVE......
3w or so. Generally lower than that -__-
Yep, that is gonna fry the motherboard and burn down the house while it's at it lachen.gif

Delta FFB1212EH-F00 120mm Case Fan Input Current : 1.45 Amp
http://www.newegg.com/Product/Product.aspx?Item=N82E16835213006

Scythe DFS123812-3000 Ultra Kaze 0.60 Amp
http://www.scythe-usa.com/product/acc/022/dfs1238_detail.html

thumb.gif
post #48 of 50
I had my 6950 on a 350W power supply once, it didn't end well sad-smiley-002.gif
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post #49 of 50
Thread Starter 
Installed some new fans today. I have 2 Bitfenix spectre pro 140mm fans as rear and side exhaust now. H100 is still intake, but now in p/p with 4x AP15s. Also put the stock exhaust fan (140mm fractal design) as bottom intake. GPU temps reduced by 5 degrees and CPU temps by around 5 degrees also. Now the top of my case doesn't feel warm anymore when playing BF3, infact it feels cool to touch.
     
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post #50 of 50
Nice improvement. Well worth the effort,. thumb.gif
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