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Old 10-11-2018, 05:48 AM   #21
kc8adu
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Default Re: The Cheapest ATX Power Supply on Amazon Prime, How bad can it be?

a $15 power supply thats not a steaming pile.
now label it properly and its actually a good one for the average joes pc replacement market.
now to find the real world load death point ....
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Old 10-11-2018, 01:59 PM   #22
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Default Re: The Cheapest ATX Power Supply on Amazon Prime, How bad can it be?

Quote:
Originally Posted by dmill89 View Post
FYI: The protection IC in this PSU is a Weltrend wt751002 which appears to provide over voltage protection and under voltage protection but no over current protection (though even if I used this in a PC it wouldn't be in an application with enough load where OCP would be needed)
That's to make sure it can provide 875w
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Old 10-11-2018, 03:32 PM   #23
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Default Re: The Cheapest ATX Power Supply on Amazon Prime, How bad can it be?

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Originally Posted by Per Hansson View Post
That's to make sure it can provide 875w
And a glowing report!
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Old 10-11-2018, 04:48 PM   #24
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Default Re: The Cheapest ATX Power Supply on Amazon Prime, How bad can it be?

Quote:
Originally Posted by ChaosLegionnaire View Post
if any nub or *gasp* even a nub engineer on another forum says all caps are created equal, i'd show them this forum topic! that'll blow 'em away and teach 'em good!
Admittedly the increase in capacitance probably had more effect than the better quality caps (the Changx caps probably wouldn't last but for now only tested 0.02-0.03 ohm higher ESR than the Chemi-Con/Nichicon caps that replaced them with the exception of the little 470uf caps on the 5vsb/-12v rails, granted this was with a cheepo tester, though the Japanese caps do have less voltage loss)

Changx GR 1000uf 16v:


Chemi-Con KYB 2200uf 16v:


Chang x GR 1000uf 10v:


Chemi-Con KY 2200uf 10v:


Changx GR 470uf 16v:


Nichicon HE 1000uf 16v:



Quote:
Originally Posted by ChaosLegionnaire View Post
compete with even high quality units from seasonic and superflower.
And just for fun here's a Seasonic X560 under the same load for comparison:

12V:


5V:


3.3V:
Attached Images
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File Type: jpg DSC_5285.jpg (511.6 KB, 26 views)

Last edited by dmill89; 10-11-2018 at 05:20 PM..
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Old 10-14-2018, 04:17 PM   #25
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Default Re: The Cheapest ATX Power Supply on Amazon Prime, How bad can it be?

Quote:
Originally Posted by kc8adu View Post
a $15 power supply thats not a steaming pile.
now label it properly and its actually a good one for the average joes pc replacement market.
+10

Definitely a decent power supply now that you can use in any average-powered rig (i.e. nothing with a big power-hungry GPU over 80 Watts.)

And yes, probably a good idea to re-label it anyways, in case you ever forget you recapped it and wonder what this PSU is doing in your stash.

In my case, I had a crappy J&C 235W PSU based on some Meico gutless crap. I gutted the original PSU a long time ago for components. But its case became a new home to a homeless HiPro 250W PCB that someone removed from its original case for whatever reason and left for recycling.
Oh well, I'm still using that PSU. It looks completely ghetto. In fact, I know I posted it somewhere in the Ghetto mod thread. And to make sure the label wasn't confusing, I just took a Sharpie / permanent marker and crossed out the original J&C model number and ratings, then wrote down what PSU was actually inside + its ratings.
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