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Discussion Starter · #1 ·
i just put in a brand new corsair 750tx, but im pretty sure that the fan controller on it is broken. i haven't heard it change speed and it's quite loud. after googling it appears that this is a common problem. i could easily open it and attach the fan to my motherboard to solve the noise problem, but doing so would void the warranty. is there a bathtub curve for power supply failures and if so how long should i wait before being reasonably certain that it won't die on me? i know people will suggest rma but there is really no reason to since i could easily solve the problem myself. the MTBF is posted as 100,000 hours so i figure i won't have to use the warranty if i make it out of the danger zone, if one exists. i suspect that they do burn in tests at the factory to weed out the bathtub failures...
 

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MTBF is not life expectancy. In fact MTBF is absolutely meaningless to general consumers.

It's not worth voiding the warranty... Email Corsair and see if they are willing to cross-ship you a new one.
 

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Ive been meaning to make an article on bathtub curves. Will start on it when Im back from CES
 

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Discussion Starter · #4 ·
do you think i should rma it as well phaedras? it's seasonic made. ugh what a hassle
 

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Discussion Starter · #5 ·
corsair got back to me today and they wanted me to pay for shipping it to them. nah...
i cracked open the psu and pulled the fan. yate loon D14SH-12, thats a 140mm high speed fan.i replaced the psu fan with a 120mm low speed yate loon i had.
i think the fan controller was working after all, because the thing is loud at 30% in speedfan and it won't spin at 25%. it can move a hell of a lot of air at 100% though. it's on my cpu heatsink right now, but not for long.
 
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