Dead Micro ATX MATX Power Supply - No Power - Can We Fix It?

I was trying to fix an All in One PC and the PSU was completely dead. So I replaced it with a new one and now I have the old one. So what is the best thing to do with it? Send it to the landfill or try to fix it instead?

How to MOD an ATX analyser to make it usefull
   • This ATX PSU Tester Analyser is USELESS!! ...  


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Equipment used in my videos. These are affiliate links, you pay the normal price and I make a small commission.
DM40C
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Aneng AN870 (Same as Zoyi ZT219)
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Zoyi ZT-DQ02
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WinAPEX 268B Clamp Meter
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VC480C+ MILLIOHM METER
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MESR-100 ESR METER
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XC6013L CAPACITOR METER
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FNB58 USB ANALYZER
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4KV Breakdown Tester
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LED Backlight Tester
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NI-210SC Curve Tracer
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NI210SJ (cheaper option but watch my review)
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PCI POST ANALYZER
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FNIRSI 1014D SCOPE
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NPS3010W 30V 10A PSU
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Nice-Power Dual 120V 3A PSU
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HR1520 Pro Short Killer
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KSGER T12 Soldering Station
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AIFEN-A9 PRO Soldering Station C115/C210/C245/C470
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C470 Soldering Iron & Tips
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QUICK 861DW
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PROS'KIT SS-331H
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Sequre HT140 Hot Tweezers
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KADA 853B Preheater
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FNIRSI SWM-10 Spot Welder
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INFIRAY P2 PRO IR CAMERA + MACRO LENS
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TOOLTOP ET13S THERMAL CAMERA METER
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ET13S MACRO LENS
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Trinocular Microscope
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TOMLOV TM4K AF FLEX
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TL866 II+ PROGRAMMER
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NC-559-ASM FLUX
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DESOLDER BRAID (I use size 8045)
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HX-T100 SOLDER
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ESD-11 TWEEZERS
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Richard