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How Long do you keep PSUs/ New build

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post #1 of 11 (permalink) Old 11-15-2018, 04:30 AM - Thread Starter
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How Long do you keep PSUs/ New build

My 2008 Corsair TX750W is now 10 years old; although it's given me no trouble. It had a 5 year warranty, but the MTBF is 100,000 hours (11.4 years).

It's seen overclocked Phenom II X4, X6, FX 8320 running at 220 Watts, and a GTX 480... but I don't think my builds over the years have come close to 750 watts.

I might be building a new system within a few months.

Do you think a new PSU would be a priority? I tend to do builds in pieces over the course of a few months - core system or CPU first... the a new PSU or case later... you know what I mean.

Any of you guys keep PSUs around for awhile... clearly, I don't have the expensive equipment or psychic abilities to test my PSU's health.

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post #2 of 11 (permalink) Old 11-15-2018, 04:50 AM
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While I run my equipment until it drops or I outgrow it, using a ten year old PSU would be pushing one's luck. The PSU is the last thing anyone should be cheaping out on. Seven years is the longest I ever ran a PSU (mostly because the computer itself lasted that long).

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post #3 of 11 (permalink) Old 11-15-2018, 05:06 AM - Thread Starter
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Has anyone actually experienced component failure from a bad PSU? I hear people warning about it, but has it actually happened recently?

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post #4 of 11 (permalink) Old 11-15-2018, 05:42 AM
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If you have the TX with the orange sticker replace it has the worst ripple suppression of all the Corsair units ever sold
If you do indeed have the one with the orange sticker the only reason nothing has ever happened is because as you said you have not loaded it high enough

Its god awful and it sucks by the standards we have today where units will do as little as 10mv at full load where the old TX is above 100mv

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post #5 of 11 (permalink) Old 11-15-2018, 05:51 AM
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Quote: Originally Posted by umeng2002 View Post
Has anyone actually experienced component failure from a bad PSU? I hear people warning about it, but has it actually happened recently?
I've had one die on me recently (coincidentally, a three or four year old Corsair) and I occasionally see posts from people who have had one fail catastrophically. Fortunately, mine did so while I was testing it outside of a computer and it just stopped working instead of failing catastrophically (no boom, no fire, no magic white smoke). That said, PSU failures are not as common as they used to be but we are talking about a TEN year one here.

PSUs are one of the least expensive components in a computer yet have the capability of filing the most destructively. Even a $200+ PSU can take out several thousand dollars of computer components if it fails destructively. Besides the fire danger, a failed PSU can shoot as much as full power line voltage to the rest of the computer, resulting in a massively expensive component barbecue.

Even though the danger of catastrophic PSU failure is low, it simply does not make sense to gamble with your expensive computer components by reusing such an old PSU or even just using a cheap one.

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post #6 of 11 (permalink) Old 11-15-2018, 06:13 AM
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PSUs have made a decent progress in last 10 years in voltage stability, ripple and efficiency. Plus new components often need a PSU that supports certain states and old PSUs don't officially support them. There are plenty new affordable good PSUs now unlike most other components.
I don't have a problem running PSUs from 15 years ago but I would not use them in a new system.
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post #7 of 11 (permalink) Old 11-15-2018, 06:36 AM
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My reasoning is simple. Once the PSU warranty has dried up, it's time to replace. It supplies the lifeblood to your system (electricity) and I don't play around with that.
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post #8 of 11 (permalink) Old 11-15-2018, 07:36 AM - Thread Starter
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Quote: Originally Posted by shilka View Post
If you have the TX with the orange sticker replace it has the worst ripple suppression of all the Corsair units ever sold
If you do indeed have the one with the orange sticker the only reason nothing has ever happened is because as you said you have not loaded it high enough

Its god awful and it sucks by the standards we have today where units will do as little as 10mv at full load where the old TX is above 100mv
That's not what reviewers found out in 2008. There was an updated one, but mine is the original one from 2008. The worse ripple was like 25 mV at 100% load on the 12v rail.

That said, a good 750 Watt PSU is only around $115.

I just did some tests a few hours ago with a "Kill A Watt™" and total system consumption with my system (see signature) from the wall, is between 450 and 530 Watts during gaming... so I doubt I've loaded it over 650 Watts in it's lifetime... how much power did the GTX 480 use again?

https://www.anandtech.com/show/2655/6

But I did know ripple was an issue when I bought it way back when...

Maybe I'm just trying to talk myself out of buying a new one...

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Last edited by umeng2002; 11-15-2018 at 07:49 AM.
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post #9 of 11 (permalink) Old 11-15-2018, 08:32 AM
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This is the crappy one and its from late 2007 and if you have this one replace it as its terrible and always have been terrible
http://www.jonnyguru.com/modules.php...=Story&reid=73

Also remember to take the rated efficiency of the PSU off the numbers you get from the wall so you need to take about 20% off those numbers
The power draw would be somewhere between 350 and 450 watts at full load which means the TX was not loaded high enough for the ripple to become an issue

Edit: two reviews shows it to have bad ripple suppression (jonnyguru and pcper) while the anandtech shows it to be only 25mv
As its two against one i am going to go with the majority data

You should not be using a 10 year PSU no matter what so replace it

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Last edited by shilka; 11-15-2018 at 08:40 AM.
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post #10 of 11 (permalink) Old 11-15-2018, 08:45 AM - Thread Starter
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Quote: Originally Posted by shilka View Post
This is the crappy one and its from late 2007 and if you have this one replace it as its terrible and always have been terrible
http://www.jonnyguru.com/modules.php...=Story&reid=73

Also remember to take the rated efficiency of the PSU off the numbers you get from the wall so you need to take about 20% off those numbers
The power draw would be somewhere between 350 and 450 watts at full load which means the TX was not loaded high enough for the ripple to become an issue

Edit: two reviews shows it to have bad ripple suppression (jonnyguru and pcper) while the anandtech shows it to be only 25mv
As its two against one i am going to go with the majority data

You should not be using a 10 year PSU no matter what so replace it
Yeah, good point.

Although, if it's so terrible, why did he rate it a 9?

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Cooling
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