More likely the power supply still has the original electrolytic capacitors which are faulty!
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[https://en.wikipedia.org/wiki/Capacitor_plague|capacitor plague] and heres a bit more: [https://www.eetimes.com/author.asp?section_id=30&doc_id=1329037|The Great Capacitor Plague of the Early 21st Century]
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[https://en.wikipedia.org/wiki/Capacitor_plague|What is the Great Capacitor Plague?] And here’s a bit more: [https://www.eetimes.com/author.asp?section_id=30&doc_id=1329037|The Great Capacitor Plague of the Early 21st Century]
More likely the power supply still has the original electrolytic capacitors which are faulty!
[https://en.wikipedia.org/wiki/Capacitor_plague|capacitor plague] and heres a bit more: [https://www.eetimes.com/author.asp?section_id=30&doc_id=1329037|The Great Capacitor Plague of the Early 21st Century]