Teapo

[c_hegge]

Re: Teapo

I've only ever seen one PSU with Rulycon (and yes, they were bulged). I've come accross lots of Sacon caps before, and I think they would definitely have to be the worst.

One thing I noticed is that their 8 mm and smaller diameter caps bulge/go bad a lot more often than their 10 mm and higher caps. Take for example the 32 HP DC5000 SFF computers I am fixing. Those have 10 mm Teapo caps on the VRM high side close to the CPU where it's very hot and 8 mm smaller Teapo caps scattered around the board, some in fairly hot areas, others not so much. Except for 1 or 2 systems, all of the other systems appear to have their 10 mm Teapo capacitors fine. On the other hand, more than 3/4 of those systems have bad (bulging) 8 mm Teapos.

You could be on to something with the 8mm caps. I've seen a few 10mm teapos go bad in PSUs before, but the 8mm ones always seem to go first. However, my general opinion of teapo remains. I still consider them a junk brand.

[Swervin]

Re: Teapo

I've only ever seen one PSU with Rulycon (and yes, they were bulged). I've come accross lots of Sacon caps before, and I think they would definitely have to be the worst.

You could be on to something with the 8mm caps. I've seen a few 10mm teapos go bad in PSUs before, but the 8mm ones always seem to go first. However, my general opinion of teapo remains. I still consider them a junk brand.

The ones that I've been replacing have been 10mm. I think my failures have been heat related though. Just an estimate from what I've seen, but I'd say 50% of them have gone bad after 3-4 years of near continuous use. Link to my original thread. At the time I posted that thread, only the ones closest to the heat sink were failing. In the year after that we've seen all of the positions having failures.

[Pentium4]

Re: Teapo

Personally I've only seen Rulycon in a KME PSU from 2000, and they were all tiny caps around 47uF 50V, they're probably completely dried out. From what I've seen on this forum I think even CapXon/Evercon are better than Rulycon.

[ben7]

Re: Teapo

I like to call Teapo caps 'tea-poo' :P

[c_hegge]

Re: Teapo

^
I sometimes call them that too. Other times I just call them Cheapo

[goodpsusearch]

Re: Teapo

I just bought a Yageo (Teapo) 100uF 400V 105C capacitor !

[ben7]

Re: Teapo

I just bought a Yageo (Teapo) 100uF 400V 105C capacitor !

And?....

[goodpsusearch]

Re: Teapo

I was surprised to find Teapo here. Most of the times the best caps available in electronic stores are Lelon... I like Teapo. They can be decent if you know how to use them. For example, I wouldn't put Teapo at 5vsb output filter. Those are the caps that fail more often.

[ben7]

Re: Teapo

I was surprised to find Teapo here. Most of the times the best caps available in electronic stores are Lelon...

Most caps you buy here at 'radioshack' (the ONLY store left here that still sells electronic parts) are 'Xicon' branded. I have seen some nichicon in their parts boxes too.

For example, I wouldn't put Teapo at 5vsb output filter. Those are the caps that fail more often.

I think thats common sense by now
...at least for the folks on these forums!

[lti]

Re: Teapo

Xicon caps are remarked Lelons.

[c_hegge]

Re: Teapo

I wouldn't put Teapo at 5vsb output filter. Those are the caps that fail more often.

That means that they are junk. IMO, any half decent cap should do OK in the 5vsb.

[Wester547]

Re: Teapo

All 8mm Teapo capacitors are bad? No wonder c_hegge thinks they're junk. If that's the case, I regret voting them average.

But... I've never had an 8mm Teapo fail. Granted, they were SC and were in very well designed Hipros but they even survived a partially seized ADDA sleeve bearing fan.... so they're all bad? Or is it only select bad batches, or a certain date code? And I don't think Teapo capacitors can handle being without a fan ('soft-off').

[ben7]

Re: Teapo

All 8mm Teapo capacitors are bad? No wonder c_hegge thinks they're junk. If that's the case, I regret voting them average.

But... I've never had an 8mm Teapo fail. Granted, they were SC and were in very well designed Hipros but they even survived a partially seized ADDA sleeve bearing fan.... so they're all bad? Or is it only select bad batches, or a certain date code? And I don't think Teapo capacitors can handle being without a fan ('soft-off').

I rated them average because they don't fail as quickly as fuhjyyus! The second reason is because they aren't a top of the line manufacturer.

-Ben

[momaka]

Re: Teapo

All 8mm Teapo capacitors are bad?

They are not all bad, but I do see them fail a lot more often than the bigger ones. And those 8 mm Teapos I mentioned that bulged by themselves on that printer board - those were SC series. In the HP DC5000 SFF computers, the 8 mm ones are also mostly SC with sometimes 2 SZ on the RAM. The SZ on the RAM fail very very often.

[Heihachi_73]

Re: Teapo

200W FSP PSU with Teapo caps, Dec 2005 - July 2012. Two large SC 3300uF caps bloated whilst the tiny SEK caps stayed intact.

[ben7]

Re: Teapo

200W FSP PSU with Teapo caps, Dec 2005 - July 2012. Two large SC 3300uF caps bloated whilst the tiny SEK caps stayed intact.

Um, did you forget to add the attachments? xD

[c_hegge]

Re: Teapo

Hahahahahaaaa. We have our 1st vote for excellent (which looks to be from our resident troll).

[Wester547]

Re: Teapo

Um, did you forget to add the attachments? xD

He posted images in his post, in the power supply pictorial thread of current, back in June. Those heatsinks really aren't impressive and neither is the fan that was "cooling" the PSU (D80SM-12, from Yate Loon, a sleeve bearing fan only rated at 2200RPM/27CFM, and it was probably running at half speed because it was temperature controlled... by Heihachi's own admission, in the post in question, he said the fan was not spinning too fast). I am not surprised those Teapos failed after being used 24/7 from 2005 to 2012. Not only that, but some of the Teapos that did bloat are awfully close to coils from what I see in the images, so they probably didn't get great airflow either. He also made of note that some resistors were very hot in the operation of the PSU, that didn't help either.

I'm not defending Teapo. I know their 8mm capacitors are horrible. But it seems that they're otherwise okay assuming they're not pushed far.

[Shocker]

Re: Teapo

To continue on the same note as Webster547... keep in mind you're in Australia, which is not exactly representative of a world wide climate.
It's hot, it's humid, you're most likely close to the ocean...

[...]

Just like that, what you find failing in Australia may have very low return rate in let's say Germany, or totally different failure reasons...

Kinda off-topic but maybe THAT's what the new HDDs can't take...

I care how much abuse hardware can take before it fails. I know it isn't meant to be abused and that those conditions aren't really representative of typical use, but it does happen, so don't call it meaningless. One HDD may run for years after an impact that immediately destroys another HDD. Then again, some HDDs are tougher than others. It doesn't help if the HDD is running, but even then bumping the HDD does not guarantee failure. Of course I'm not recommending you to throw HDDs across the room, but you get the point.

[larrymoencurly]

Re: Teapo

I just bought a Seasonic-made 620W that was cheapened for Antec by replacing the Japanese caps with Teapos.

In my old SmartPower Antecs, the Koshins and Teapos failed before the Fuhjyyus,