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Old 03-17-2018, 01:19 PM   #1
Mac29
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Default Corsair 400W PSU w/one bad cap

I've got a 400W Corsair that works fine. But upon blowing out bunnies I see one bad cap, bulged a bit, and I was thinking if I replace it I may save other caps and the unit itself.

It's had a lot of use, maybe 6 years and been 'on the shelf' for 1.5 years now. All measurements are w/in spec.

Think it's worth replacing the one cap or just use it again until it fails? As I understand it modern mobos have built in protection from bad PSU's.

Read thru a third of 500 hits on a search and nothing quite like my situation so far. What do you think?


Thanks,

Mac
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Old 03-17-2018, 02:52 PM   #2
stj
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Default Re: Corsair 400W PSU w/one bad cap

replace any bulged caps asap.
i'v never seen a motherboard that cant be slowly cooked or simply blown to shit by a bad voltage from the psu.
specially as chances are the bad cap is for the 5v standby line that runs 24/7
upload some photo's
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Old 03-18-2018, 07:28 PM   #3
Mac29
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Default Re: Corsair 400W PSU w/one bad cap

Here's what that one cap looks like, as well as the unit.


Thanks,

Mac
Attached Images
File Type: jpg PSU_cap1.jpg (690.8 KB, 50 views)
File Type: jpg PSU_cap2.jpg (629.9 KB, 41 views)
File Type: jpg PSU_unit.jpg (589.3 KB, 34 views)
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Old 03-18-2018, 08:18 PM   #4
CapLeaker
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Default Re: Corsair 400W PSU w/one bad cap

yep, she's pregnant all right.
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Old 03-18-2018, 08:36 PM   #5
dmill89
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Default Re: Corsair 400W PSU w/one bad cap

Quote:
Originally Posted by CapLeaker View Post
yep, she's pregnant all right.
Yep, looks like the caps (at least what can be seen in the pics.) are OSTs (mediocre brand at best) as well, if you don't replace them all now chances are they will fail in the near future (since all the caps are the same age and brand if one failed the others are likely to as well).
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Old 03-18-2018, 11:22 PM   #6
ant3202
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Default Re: Corsair 400W PSU w/one bad cap

Quote:
Originally Posted by Mac29 View Post
Here's what that one cap looks like, as well as the unit.


Thanks,

Mac
awww those OST stuffs.....

had some boards also..... left for some time... those ost caps also bloat....
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Old 03-19-2018, 11:53 AM   #7
Stefan Payne
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Default Re: Corsair 400W PSU w/one bad cap

Why was the first thought I had the Original CX400??
Well, maybe because its around 10 Years Old.

Anyway, that's an RLX one, right?
Ultra Low ESR one??

Last edited by Stefan Payne; 03-19-2018 at 11:55 AM..
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