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[Project] 10 Minute PSU Fan Mod - Page 4

post #31 of 43
Quote:
Originally Posted by prosser13 View Post
Eww...

Please, for the sake of your PSU, buy a decent fan!
lol if I were him, I wouldn't spend so much money on that PSU
The fan he chose is good enough
GE60
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GE60
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post #32 of 43
this is amazing, i really need to do this, considering my PSU fan stopped working..
although ill have to invest in a soldering gun, and a new 120mm blue LED fan like what you used.
post #33 of 43
Nicely done, this will be perfect for my system! Thanks +rep
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post #34 of 43
Nice!! it does look better, and you say its actually cooler than before??

awesome work

noob91
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post #35 of 43
Not to be negative, but wow is that PSU a hunk of junk. To point out the obvious things, there is no input filter and it looks like it is missing part of the pi-filter on the secondary. I really hope that isn't powering anything valuable.
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post #36 of 43
Thread Starter 
Quote:
Originally Posted by shinji2k View Post
Not to be negative, but wow is that PSU a hunk of junk. To point out the obvious things, there is no input filter and it looks like it is missing part of the pi-filter on the secondary. I really hope that isn't powering anything valuable.
Certainly not If I actually cared about it I I'd never de-warrantyfy it. Its in an old P3 PC now and its been perfectly stable for the last couple of months. And is missing part of the pi-filter bad? more to the point what is a pi-filter?
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post #37 of 43
Quote:
Originally Posted by japan1 View Post
Certainly not If I actually cared about it I I'd never de-warrantyfy it. Its in an old P3 PC now and its been perfectly stable for the last couple of months. And is missing part of the pi-filter bad? more to the point what is a pi-filter?
First, the input filter is completely missing. It filters any spikes/noise from your house's AC current before the AC is converted to DC for use in the computer. After it is converted to DC, pi-filters (a combo of capacitors and toroid coils of which it seems some caps are missing here) then filter the DC current of any noise/AC ripple still present in your DC outputs. It's not often you see a missing pi-filter but it is common in cheap PSUs for at least some of the input filtering to be missing. Pi-filters are important since they filter or reduce ripple (anything with a waveform) and noise which if present beyond certain levels can slowly damage components powered by it.

I'm glad it's not running anything valuable .

edit: I can't be sure that any of the pi-filters are missing since I don't have the unit to follow the traces, but the board was silk screened for at least 2 capacitors, from what I can see, that weren't installed. It could be that the board was used for multiple designs and that particular model didn't need all of the caps, but it is always suspicious when there is something missing like that.
Edited by shinji2k - 1/23/09 at 1:57pm
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post #38 of 43
The only thing I would have done different is to solder the wires directly to the board. +rep for you, and thanks for the Idea
post #39 of 43
im afraid to solder the wires!...i suck with that kinds of stuff and mods...im only 14...UGH! I WANT TO DO THIS SO BAD!!!

very nice mod and it looks good!
    
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post #40 of 43
Quote:
Originally Posted by Mootsfox View Post
Glad to see more OCNers soldering their fans instead of just wrapping the wires together

Hm right now I'm using a pair of scissors and duct tape for my cable extensions

I'll move up to the heatshrink and the right tools if I need it to look good.
    
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