atx power supply repair | Electronics Repair And Technology News

Solved Not Taking Load Problem In Computer ATX Power Supply Model FOXIN FPS-500T

Jestine Yong — Sat, 04 Apr 2026 05:38:18 +0000

This SMPS was brought to me with the complaint that it was getting on, but not taking load. I opened and cleaned the inside thoroughly using various brushes. Let us have a look at the board: Then started my step by step troubleshooting. The outputs were coming when tested connecting a PS tester. Then I […]

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UMAX 450W ATX SMPS Repaired

Jestine Yong — Sun, 28 Sep 2025 09:12:25 +0000

Received PC SMPS for Repair Stating Dead (not working). Connected the SMPS to Series Bulb Board for testing. It is not showing any shorting. For further inspection I removed circuit board out of the box. On initial inspection I found Fuse is intact but on PCB I found some dry […]

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CIRCLE PC ATX SMPS Model CPH698 Repaired

Jestine Yong — Sat, 13 Sep 2025 08:51:27 +0000

Received Circle PC ATX SMPS for Repair from one of my techie friends, Stating fault symptom: Dead Connected SMPS to Power & shorted PS_ON pin (Green Wire) to ground (Black) wire on ATX Connector by this shorting SMPS FAN should Spin & there should be output Voltages on the […]

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Saving Computer SMPS Part – 14

Jestine Yong — Sat, 09 Aug 2025 08:41:45 +0000

Case (1) Zebronics ZEB450W : This was brought dead. Internal cleaning was already done. I saw a fixed capacitor had burst in the primary section: Since the SMD tester was flip flopping 0 and some other value when checking, I had to continuously click to capture the image that you […]

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Saving Computer SMPS Part – 14

Jestine Yong — Sat, 19 Jul 2025 09:39:29 +0000

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This Computer SMPS Survived A Third Attempt On Its Life – Story Of INTEX TECHNO ATX SMPS

Jestine Yong — Sat, 05 Jul 2025 04:02:52 +0000

The above image is an extract form my previous article: https://jestineyong.com/maintenance-done-in-computer-smps-lasted-for-five-years/ This computer SMPS got serviced first in March, 2017, second in April, 2022 and got readmitted in December, 2024 withthe complaint that it was dead. As cleaning was already done by the IT-Administrator, I focused on what went wrong […]

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Saving Computer SMPS Part – 13

Jestine Yong — Sat, 15 Mar 2025 08:30:29 +0000

Continuing my efforts to bring back the defective ATX Power Supplies which are replaced with new by most of the people globally! Following two such SMPS (written off cases, to tell the truth) were brought back to working conditions: Case (1) iBall LPE223-400 : The complaint on this […]

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Saving Computer SMPS Part – 12

Jestine Yong — Sun, 02 Feb 2025 09:40:57 +0000

Saving computer SMPS (ATX Power supplies) holds the first priority in my interest in electronics, mainly because of the wonderful book published by Jestine Yong on servicing SMPS. Here are two more computer SMPS of Hospital where I work, saved from dump. Case (1) Zebronics-ZE450W : This was […]

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Saving Computer SMPS Part-11

Jestine Yong — Sat, 04 Jan 2025 07:05:29 +0000

Case (1) Foxin F500S : This was brought to me in dead condition in August, 2024. Surprisingly this was bought in the mid of 2023! That means it did not last even for an year! On opening I found that capacitors had burst indicating a major power surge. The condition […]

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Saving Computer SMPS Part-10

Jestine Yong — Wed, 28 Aug 2024 03:06:03 +0000

I have time and again mentioned that I love doing service on SMPS after reading Jestine Yong’s Book on SMPS service. Here are yet other cases, which provide an insight as to how simply we can get back an ATX Power Supply back to work again. Unfortunately, many such lovely SMPS go to e-Waste, as […]

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