Cheap PSU: Piece of junk or semi-decent?

[Behemot]

Re: Cheap PSU: Piece of junk or semi-decent?

All those crappy PSUs with HAVE these 3k RPM fans if they are 80mm!

[TELVM]

Re: Cheap PSU: Piece of junk or semi-decent?

I had one of these take a big chunk out of one of my fingers.

Sorry to hear that. That was a 3000rpm fan, at those high speeds they bite harder than the usual ~1500 rpm PC fan.

[tom66]

Re: Cheap PSU: Piece of junk or semi-decent?

They should have razor blades on the fan blades to be extra sure you lose a finger.

[Behemot]

Re: Cheap PSU: Piece of junk or semi-decent?

Some of them tend to be really sharp…

[lti]

Re: Cheap PSU: Piece of junk or semi-decent?

I had one of these take a big chunk out of one of my fingers.

[TELVM]

Re: Cheap PSU: Piece of junk or semi-decent?

PC fans are hopeless as surgical instruments. Even large 200mm ones, with heavier propeller and greater rotational inertia, can be stopped harmlessly with one finger without shedding blood. I'm much more in awe of the high voltages inside a PSU than any PC fan.

[Behemot]

Re: Cheap PSU: Piece of junk or semi-decent?

Be glad But everything is once for the first time…

[tom66]

Re: Cheap PSU: Piece of junk or semi-decent?

I've never had an ordinary computer fan injure my finger.

[Behemot]

Re: Cheap PSU: Piece of junk or semi-decent?

Yeaah, I didn't mean cutting it of, but if you get cut badly, the you are crippled for some time. At least I cannot do many thing with injured fingers

[tom66]

Re: Cheap PSU: Piece of junk or semi-decent?

I've never had an ordinary computer fan take out a finger.

[Behemot]

Re: Cheap PSU: Piece of junk or semi-decent?

I would be more worried about breaking your fingers You can replace fan, but finger… But I usually don't add any grill, ppl are told to not touch that area at all

[goodpsusearch]

Re: Cheap PSU: Piece of junk or semi-decent?

The front fan definitely needs a grille, as it could catch some internal PC wiring. But the exhaust one can live without, and we regain a bit of volumetric efficiency. PC fans aren't really dangerous, I stop them routinely with my fingertips when testing for noise sources.

I accidentally touched one a week ago and broke a fan blade.. Better safe than sorry.

[TELVM]

Re: Cheap PSU: Piece of junk or semi-decent?

That wire above the rectifier heatsink with so much uninsulated copper would worry me, don't like it at all.

Yeah, it's probably ok, you close the case and the wire doesn't move anywhere, and the rectifier is still passivated glass, insulated, so not much concern... these things just irk me ...

I think you are right, I must insulate that wire better.

I would recommed putting a grille on the outward facing fan. Turning the supply off by blindly reaching behind for the power switch could prove startling.

The front fan definitely needs a grille, as it could catch some internal PC wiring. But the exhaust one can live without, and we regain a bit of volumetric efficiency. PC fans aren't really dangerous, I stop them routinely with my fingertips when testing for noise sources.

[goodpsusearch]

Re: Cheap PSU: Piece of junk or semi-decent?

I thought he was going to put a grille there later....

[jamesbo]

Re: Cheap PSU: Piece of junk or semi-decent?

I would recommed putting a grille on the outward facing fan. Turning the supply off by blindly reaching behind for the power switch could prove startling.

[mariushm]

Re: Cheap PSU: Piece of junk or semi-decent?

That wire above the rectifier heatsink with so much uninsulated copper would worry me, don't like it at all.

Yeah, it's probably ok, you close the case and the wire doesn't move anywhere, and the rectifier is still passivated glass, insulated, so not much concern... these things just irk me.

Other than that, really overkill but somewhat nice at the same time. Good job!

[goodpsusearch]

Re: Cheap PSU: Piece of junk or semi-decent?

Overkill!

[TELVM]

Re: Cheap PSU: Piece of junk or semi-decent?

Let the air flow - Both turbines slow ahead!

-> LARGE -> LARGE -> LARGE

Added a DIY heatsink for the rectifier bridge.

-> LARGE -> LARGE -> LARGE

[TELVM]

Re: Cheap PSU: Piece of junk or semi-decent?

IT'S ALIVE!

Rotated the -5V Ruby 180 degrees, planted back a Koshin for -12V ...

... and The Thing breaths! No thermobaric explosions, no dimensional rifts!

And with a couple fans plugged to the Molex sucking some +12V I get these pretty coherent voltage readings :

+12V: 11.80
+5V: 5.11
+3.3V: 3.32
-12V: -11.45
-5V: -4.77

[TELVM]

Re: Cheap PSU: Piece of junk or semi-decent?

The poor cap pissed himself from the trauma.