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  #11  
Old 02-14-2014
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Originally Posted by Digerati View Post
Decades? That would be nice, but that is not realistic as a "norm". While I agree fan and cap failures are more common, I would also note I have had a fair share of rectifier failures too.
I'm not saying that failures earlier than that are impossible, but I haven't found it to be overly common (except in cheap PSUs where they run hot and are overtaxed). On well designed, cooler running PSUs, I've only ever seen maybe a dozen rectifier and transistor failures vs hundreds of units with bad caps.
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  #12  
Old 02-15-2014
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Well, you can tell by the last line in my sig my position on heat - so I agree about cheap, hot running PSUs.

Overtaxed is a different issue, however, as that is the computer assembler's (or upgrader's) error for using an underpowered PSU. I don't believe overtaxed/underpowered abuse should be a factor here.

The fact of the matter is, a well designed PSU today is NOT likely to use inferior caps and should be expected to last many years, if kept clean of heat-trapping dust, and not over taxed - and not subjected to excessive or extreme power anomalies.
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  #13  
Old 02-15-2014
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Originally Posted by Digerati View Post
Overtaxed is a different issue, however, as that is the computer assembler's (or upgrader's) error for using an underpowered PSU...
That is true. I was referring more to individual components being overtaxed, rather than the PSU as whole, like those cheap liar-labelled "550W" PSUs with 10A rectifiers on the 12V output which get used in newer PCs. The average system builder has absolutely no clue that their "550W" unit is only a 200W unit in disguise or that it's meant more for Pentium 3/Athlon XP systems. It's in cases like this that I often find PSUs with burned out silicon components.
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  #14  
Old 10-20-2017
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The primary cap only works at 50/60 Hz, hardly any heating compared to the secondary that work at tens of kHz

I find recapping normally well worth the effort.
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  #15  
Old 10-20-2017
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Quote:
Originally Posted by ashiekh View Post
The primary cap only works at 50/60 Hz, hardly any heating compared to the secondary that work at tens of kHz

I find recapping normally well worth the effort.
Take it easy on the necroposting, please.
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  #16  
Old 10-21-2017
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Sorry, but I thought recapping was still of current interest
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  #17  
Old 10-21-2017
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It is. But you've bumped a number of rather old threads. While this might be relevant, just keep in mind that when someone typically does this, they end up being a spammer.
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  #18  
Old 10-21-2017
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Understood
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