Originally posted by: dBTelos
Remotely the same in quality? Fairly. I don't put PC P&C that much higher then Seasonic on my recommended PSUs list. Especially because an Emacs/Zippy will probably last longer anyway.
stats...proof??
I was having a discussion with somebody and I said...
Etasis are well built units but after going to there website all there pSU`s have a 2yr warranty. I`m just wondering why?
I also noticed this tidbit on all the specs...
MTBF > 100,000 hours at 75% load and 25°C ambient conditions
They said -- Because that's what the estimated lifespan is for MTBF. That has nothing to do with their rating, which is still done at 50C, not 25C. MTBF is often done at room temperature.
Have you asked PCP&C at what load and temperature they figured out their 120,000 hour MTBF? Oddly enough, it's not listed.
So I e-mailed PC Power & Cooling....
I have been the proud owner of a Turbo Cool 510 for a few years now.
>
> I have noticed that other manufacturers such as Etasis rate there PSU`s at
MTBF > 100,000 hours at 75% load and 25°C ambient conditions.
>
> What is the load temperature used to figure out the 120,000 hour MTBF for
the 1k or the 100,00 for the turbo cool 510?
>
> Thank You!!
*****
The response was from PC Power & Cooling was --
Its @ 50 decgrees C. The limitation is our fan in this case, but many psu
mfr's do not include the fan in their figures.
No power supply runs at Ambient unless its off.---
arrogant comment..lol
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Then I was told to ask again basically--
You should probably confirm that this person knows you're talking about MTBF rating and not the continuous power output rating.
We're not talking about the temperature in which the PSU is rated. I know that their Turbo-Cool is rated at 50C and Silencer is rated at 40C, but does that also apply to the MTBF rating?
And do they publish this somewhere, like Etasis and Silverstone do? (And Seasonic for that matter, who also MTBF @ 25C.)
Perhaps ask them about the MTBF of a Silencer. I'd be curious to see if their answer is different than Seasonic's.
And the "no power supply runs at ambient unless it's off" is a nice smart ass touch. Makes me not like them even more. When will people realize that arrogance is a turn off. I just want a straight answer.
*********
Here`s what I asked --
Sent: Tuesday, November 07, 2006 11:17 AM
Subject: Re: Just a question
I think you answered my question, but to be sure I asked it correctly let me seek a clarification.
I was not talking about the temperature in which the PSU is rated. I know that the Turbo-Cool is rated at 50C and Silencer is rated at 40C, but does that also apply to the MTBF rating?
I know that Etasis and Seasonic brand rate there MTBF @ 25C.
I was also wondering about the MTBF of the Slencer series.
The Silencer Series is an attractive PSU. The only drawback IMO is the warranty.
But still I am a PC Power & Cooling diehard.
As always I really appreciate you taking the time to answer my questions!!
**********************
The response---
The 1 KW would be 120K, full load @ 40 degrees C, and 100K, full load @ 50. The Silencer 610/750 would be 100K full load @ 25 degrees C. I would expect less than 1% of anything we build to come back for warranty service.
**************************
Then the prson who I was talking too responds--
Anyhoo... that sounds legit. And he didn't try to blemish the Silencer MTBF results.
I still find it a bif turn off for him to say "I would expect less than 1% of anything we build to come back for warranty service."
Very arrogant. And quite inaccurate. Seasonic doesn't have a less than 1% RMA rate and they don't use different components in the Silencer than they do in the Corsair. Oh wait... he said it was 1% of what "they build." So that would mean Zero. 1% of Zero is Zero.
My own opinion would be that no compant that sells or manufactires PSU`s has even close to a 1% return rate maybe even upwards of 3% - 5%!!
Thus I take what you are saying about the life of a PC Power & Cooling PSU to be just a guess at best.......
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