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Thread ID: 115200 2011-01-06 22:30:00 Seized PSU fan Mike (15) Press F1
Post ID Timestamp Content User
1167827 2011-01-07 06:19:00 I have replaced PSU fans several times, It's very very easy.
.

Yep.
Should be a go unless it's a Hyena or something, in which case bin it.
pctek (84)
1167828 2011-01-07 06:23:00 Yep.
Should be a go unless it's a Hyena or something, in which case bin it.what crazy advice. If a PSU (even a Hyena or whatever) still supplies power, and its only a cheap fan that's the problem, why bin it and pay who knows how much for a whole new PSU?

Anyway, I've pulled the fan apart and cleaned its insides, now it spins when I blow on it (before that I couldn't even get my vacuum cleaner to spin it... I could get it to move slightly with my finger)... so hopefully it works again now :)

Any way to start up a PSU without attaching it to a Mobo?

Mike.
Mike (15)
1167829 2011-01-07 06:42:00 www.gideontech.com icow (15313)
1167830 2011-01-07 06:49:00 what crazy advice. If a PSU (even a Hyena or whatever) still supplies power, and its only a cheap fan that's the problem, why bin it

Because Hyena are cheap and nasty. Cheap PSUs are not cool.

Hyenas here in NZ are actually built not incredibly badly, but they are let down with useless capacitors which die quickly.

If your model is one of the decent ones with the full input filter etc then it might be worth capacitor replacement.


But cheap PSUs in general are not a good idea. Most are missing input filters which makes them susceptible to power disturbances.

Cheap capacitors make the working life short, and when the output capacitors fail the PSUs ripple suppression is gone and 'dirty' power starts going into the rest of your PC.

But by far the most compelling reason to not buy and use cheap PSUs is because when overloaded they often don't shut down and instead blow up or catch fire.

They also enjoy doing this for no good reason. NOT something you want to happen if you leave your PC on overnight or whatever.


Here's JonnyGuru's review on a late model Allied aka Deer\Solytech\Hyena and others: www.jonnyguru.com
Agent_24 (57)
1167831 2011-01-07 07:00:00 Basicly, if the CPU is crap, why bother with time to solder and replace parts? a bad PSU could even give a nasty voltage spike damaging MORE equipment and costing more than just replacing it. I have even seen some cheap PSU's arc and catch fire, and even overload/over heat and catch fire.

If you are in wellington I can fix in 3 weeks, I would tomorrow but i fly out then
The Error Guy (14052)
1167832 2011-01-07 07:20:00 As Jonnyguru showed, the ripple is actually quite nice (when the capacitors are brand new)

After a year or two, though, that probably wouldn't be the case, so better capacitors are needed.

With decent capacitors it would be fine for a Pentium 3 or something, but efficiency does suck.

Might as well spend the money on a new PSU unless you absolutely can't afford it (because a recap would certainly be cheaper)
Agent_24 (57)
1167833 2011-01-07 07:39:00 Thanks.

Mike.
Mike (15)
1167834 2011-01-07 08:06:00 Clearly whatever PSU you have is working OK (Hasn't exploded anyway!) so if you're happy with it just fix\replace the fan.

However if when you open it you notice the capacitors are bulging or leaking brown stuff, they are dead and I highly recommend they be replaced.

Even a decent brand of capacitor will be fairly cheap compared to a whole new PSU, if you don't want to\can't pay for one.
Agent_24 (57)
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