Sleeve bearing fans - when are you willing to use them?

[LongRunner]

About that speed. It self-starts down to 3.3V (though it barely turns then).

[LongRunner]

Okay, I'm disappointed with Superred now. I pulled the oil plug on one (from, yes, an HP-D3057F3H) and didn't see any oil to speak of. Both it and (to a lesser extent) an identical one produce scratching noises when rotating. I don't know about you but in a PSU that runs its fan that slow...

The Power Logic fans I have are in much better condition. I'm getting tempted to move Superred down the list.

[c_hegge]

I often find that in the 3057F3H. The Superred fans always have no lubricant in them. I have to pull the fans out anyway in order to cut out the fan grille, so I just re-lube them then.

[Wester547]

Superred fans aren't any better than ADDA? I wonder why Suppered fans are more expensive and are harder to maintenance, then, and why people hold them in high esteem...

I don't know about you but in a PSU that runs its fan that slow...

Only at low loads. I think the fan controller is fairly aggressive at higher loads.

[c_hegge]

The funny thing is though, that I've never actually had a Superred fan fail, in spite of not having much lubricant in the bearings.

[LongRunner]

...harder to maintenance...

They did use the fused plastic bearing plugs in the past, but the ones found in those Hipros have normal rubber plugs.

...and why people hold them in high esteem...

Beats me. I remember that momaka (on Badcaps.net) had an MPT-301 with a seized Superred fan (one of the old ones), and I can see why. He went to the length of drilling out the plug in order to oil the bearing, though I can't say I'd be tempted to go that far.

Only at low loads. I think the fan controller is fairly aggressive at higher loads.

That it runs that slow at low load is probably the reason why the ones in those Hipros survive as long as they do.

[shovenose]

I just sort of use whatever fan. My primary computer has a Noctua fan on the CPU cooler (some shitty Corsair AIO liquid cooler) but the power supply, video card, and front of the case fans are all the ones that came with it.