{"id":41531,"date":"2026-04-23T03:58:13","date_gmt":"2026-04-23T00:58:13","guid":{"rendered":"https:\/\/diagnozabam.ro\/sfaturi\/?p=41531"},"modified":"2026-04-23T08:03:01","modified_gmt":"2026-04-23T05:03:01","slug":"power-supply-failure-symptoms-complete-diagnostic-guide","status":"publish","type":"post","link":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/power-supply-failure-symptoms-complete-diagnostic-guide\/","title":{"rendered":"Power Supply Failure Symptoms: Complete Diagnostic Guide"},"content":{"rendered":"<p data-start=\"410\" data-end=\"581\">The power supply unit (<a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a>) is one of the most critical components in any <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a>. When it starts to fail, the system can show a wide <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/electric-car-range-2026-real-conditions-explained\/\">range<\/a> of unstable and confusing behaviors.<\/p>\n<p data-start=\"583\" data-end=\"620\">Many users misdiagnose <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> issues as:<\/p>\n<ul data-start=\"622\" data-end=\"682\">\n<li data-section-id=\"apfgqy\" data-start=\"622\" data-end=\"637\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">GPU<\/a> failure<\/li>\n<li data-section-id=\"y609j7\" data-start=\"638\" data-end=\"662\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-but-no-post-complete-diagnostic-guide\/\">motherboard<\/a> problems<\/li>\n<li data-section-id=\"j5xdqs\" data-start=\"663\" data-end=\"682\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">RAM<\/a> instability<\/li>\n<\/ul>\n<p data-start=\"684\" data-end=\"755\">In reality, a failing <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> can affect <strong data-start=\"721\" data-end=\"754\">every component in the system<\/strong>.<\/p>\n<p data-start=\"757\" data-end=\"882\">This guide explains all <strong data-start=\"781\" data-end=\"814\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-then-off-causes-and-fix\/\">power supply failure<\/a> symptoms<\/strong>, how to diagnose them correctly, and when you must replace the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a>.<\/p>\n<hr data-start=\"884\" data-end=\"887\" \/>\n<h2 data-section-id=\"m9j1cw\" data-start=\"889\" data-end=\"920\">What Does a Failing PSU Mean<\/h2>\n<p data-start=\"922\" data-end=\"993\">A failing <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> cannot deliver stable and sufficient power to components.<\/p>\n<p data-start=\"995\" data-end=\"1011\">This results in:<\/p>\n<ul data-start=\"1013\" data-end=\"1072\">\n<li data-section-id=\"y8muj4\" data-start=\"1013\" data-end=\"1030\">voltage drops<\/li>\n<li data-section-id=\"15likhj\" data-start=\"1031\" data-end=\"1051\">unstable current<\/li>\n<li data-section-id=\"1uvsv4u\" data-start=\"1052\" data-end=\"1072\">sudden shutdowns<\/li>\n<\/ul>\n<p data-start=\"1074\" data-end=\"1130\">Even if the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a> turns on, the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> may still be defective.<\/p>\n<hr data-start=\"1132\" data-end=\"1135\" \/>\n<h2 data-section-id=\"cjvwj7\" data-start=\"1137\" data-end=\"1181\">Most Common Power Supply Failure Symptoms<\/h2>\n<h3 data-section-id=\"1pdwb52\" data-start=\"1183\" data-end=\"1205\">1. Random Restarts<\/h3>\n<p data-start=\"1207\" data-end=\"1236\">One of the most common signs.<\/p>\n<ul data-start=\"1238\" data-end=\"1310\">\n<li data-section-id=\"1tt60c7\" data-start=\"1238\" data-end=\"1260\">happens under load<\/li>\n<li data-section-id=\"eociuy\" data-start=\"1261\" data-end=\"1281\">no error message<\/li>\n<li data-section-id=\"qgll8x\" data-start=\"1282\" data-end=\"1310\">system instantly reboots<\/li>\n<\/ul>\n<hr data-start=\"1312\" data-end=\"1315\" \/>\n<h3 data-section-id=\"1pw43io\" data-start=\"1317\" data-end=\"1345\">2. PC Turns Off Suddenly<\/h3>\n<p data-start=\"1347\" data-end=\"1396\">The system shuts down completely without warning.<\/p>\n<hr data-start=\"1398\" data-end=\"1401\" \/>\n<h3 data-section-id=\"s7shkh\" data-start=\"1403\" data-end=\"1425\">3. No Power at All<\/h3>\n<ul data-start=\"1427\" data-end=\"1495\">\n<li data-section-id=\"1gwf3n7\" data-start=\"1427\" data-end=\"1438\">no fans<\/li>\n<li data-section-id=\"1on7vpg\" data-start=\"1439\" data-end=\"1452\">no lights<\/li>\n<li data-section-id=\"ujmmo\" data-start=\"1453\" data-end=\"1495\">no response when pressing power button<\/li>\n<\/ul>\n<hr data-start=\"1497\" data-end=\"1500\" \/>\n<h3 data-section-id=\"kc62yg\" data-start=\"1502\" data-end=\"1537\">4. GPU Fans Spin But No Display<\/h3>\n<p data-start=\"1539\" data-end=\"1610\">The <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> may power fans but not deliver enough power for initialization.<\/p>\n<hr data-start=\"1612\" data-end=\"1615\" \/>\n<h3 data-section-id=\"hsisxa\" data-start=\"1617\" data-end=\"1646\">5. Burning Smell or Noise<\/h3>\n<p data-start=\"1648\" data-end=\"1670\">Serious warning signs:<\/p>\n<ul data-start=\"1671\" data-end=\"1722\">\n<li data-section-id=\"1aqnbod\" data-start=\"1671\" data-end=\"1691\">electrical <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/why-food-loses-its-taste-when-you-hold-your-nose\/\">smell<\/a><\/li>\n<li data-section-id=\"1nufwn0\" data-start=\"1692\" data-end=\"1722\">buzzing or <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/hdd-clicking-noise-causes-and-data-recovery-guide\/\">clicking<\/a> sounds<\/li>\n<\/ul>\n<hr data-start=\"1724\" data-end=\"1727\" \/>\n<h3 data-section-id=\"1kfdwrf\" data-start=\"1729\" data-end=\"1757\">6. PC Freezes Under Load<\/h3>\n<ul data-start=\"1759\" data-end=\"1821\">\n<li data-section-id=\"gv0wcb\" data-start=\"1759\" data-end=\"1799\">system hangs during gaming or stress<\/li>\n<li data-section-id=\"1cnkgb6\" data-start=\"1800\" data-end=\"1821\">unstable behavior<\/li>\n<\/ul>\n<hr data-start=\"1823\" data-end=\"1826\" \/>\n<h3 data-section-id=\"1drfx0d\" data-start=\"1828\" data-end=\"1860\">7. Blue Screen Errors (BSOD)<\/h3>\n<p data-start=\"1862\" data-end=\"1912\">Power instability can cause random system crashes.<\/p>\n<hr data-start=\"1914\" data-end=\"1917\" \/>\n<h3 data-section-id=\"125yhv1\" data-start=\"1919\" data-end=\"1952\">8. Inconsistent Boot Behavior<\/h3>\n<ul data-start=\"1954\" data-end=\"2020\">\n<li data-section-id=\"ubcupu\" data-start=\"1954\" data-end=\"1989\">sometimes starts, sometimes not<\/li>\n<li data-section-id=\"18grqxk\" data-start=\"1990\" data-end=\"2020\">requires multiple attempts<\/li>\n<\/ul>\n<hr data-start=\"2022\" data-end=\"2025\" \/>\n<h2 data-section-id=\"jx56mj\" data-start=\"2027\" data-end=\"2053\">What Causes PSU Failure<\/h2>\n<h3 data-section-id=\"1izyji4\" data-start=\"2055\" data-end=\"2075\">Aging Components<\/h3>\n<p data-start=\"2077\" data-end=\"2106\">Capacitors degrade over time.<\/p>\n<hr data-start=\"2108\" data-end=\"2111\" \/>\n<h3 data-section-id=\"1wlb6we\" data-start=\"2113\" data-end=\"2128\">Overloading<\/h3>\n<p data-start=\"2130\" data-end=\"2165\">Using a <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> below required wattage.<\/p>\n<hr data-start=\"2167\" data-end=\"2170\" \/>\n<h3 data-section-id=\"11r2izj\" data-start=\"2172\" data-end=\"2192\">Poor Quality PSU<\/h3>\n<p data-start=\"2194\" data-end=\"2218\">Cheap units fail faster.<\/p>\n<hr data-start=\"2220\" data-end=\"2223\" \/>\n<h3 data-section-id=\"hnppvg\" data-start=\"2225\" data-end=\"2241\">Power Surges<\/h3>\n<p data-start=\"2243\" data-end=\"2285\">Voltage spikes damage internal components.<\/p>\n<hr data-start=\"2287\" data-end=\"2290\" \/>\n<h3 data-section-id=\"1edx27k\" data-start=\"2292\" data-end=\"2307\">Overheating<\/h3>\n<p data-start=\"2309\" data-end=\"2347\">Dust and poor airflow reduce lifespan.<\/p>\n<hr data-start=\"2349\" data-end=\"2352\" \/>\n<h2 data-section-id=\"1twidul\" data-start=\"2354\" data-end=\"2379\">Step-by-Step Diagnosis<\/h2>\n<hr data-start=\"2381\" data-end=\"2384\" \/>\n<h3 data-section-id=\"7auceo\" data-start=\"2386\" data-end=\"2419\">Step 1: Check System Behavior<\/h3>\n<p data-start=\"2421\" data-end=\"2430\">Look for:<\/p>\n<ul data-start=\"2431\" data-end=\"2484\">\n<li data-section-id=\"f9pczm\" data-start=\"2431\" data-end=\"2454\">restarts under load<\/li>\n<li data-section-id=\"1c4neoy\" data-start=\"2455\" data-end=\"2484\">instability during gaming<\/li>\n<\/ul>\n<hr data-start=\"2486\" data-end=\"2489\" \/>\n<h3 data-section-id=\"1ukdq52\" data-start=\"2491\" data-end=\"2520\">Step 2: Visual Inspection<\/h3>\n<ul data-start=\"2522\" data-end=\"2566\">\n<li data-section-id=\"1u3l8b5\" data-start=\"2522\" data-end=\"2547\">check for burnt <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/why-food-loses-its-taste-when-you-hold-your-nose\/\">smell<\/a><\/li>\n<li data-section-id=\"1fo4pfo\" data-start=\"2548\" data-end=\"2566\">inspect cables<\/li>\n<\/ul>\n<hr data-start=\"2568\" data-end=\"2571\" \/>\n<h3 data-section-id=\"sdrjsw\" data-start=\"2573\" data-end=\"2601\">Step 3: Monitor Voltages<\/h3>\n<p data-start=\"2603\" data-end=\"2635\">Use software (approximate only):<\/p>\n<ul data-start=\"2636\" data-end=\"2649\">\n<li data-section-id=\"1lv9kjf\" data-start=\"2636\" data-end=\"2649\">HWMonitor<\/li>\n<\/ul>\n<p data-start=\"2651\" data-end=\"2676\">Look for unstable values.<\/p>\n<hr data-start=\"2678\" data-end=\"2681\" \/>\n<h3 data-section-id=\"1vnay82\" data-start=\"2683\" data-end=\"2710\">Step 4: Test Under Load<\/h3>\n<p data-start=\"2712\" data-end=\"2716\">Run:<\/p>\n<ul data-start=\"2717\" data-end=\"2742\">\n<li data-section-id=\"6hftcx\" data-start=\"2717\" data-end=\"2742\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">GPU<\/a> + <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">CPU<\/a> stress test<\/li>\n<\/ul>\n<p data-start=\"2744\" data-end=\"2777\">If system restarts \u2192 <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> suspect.<\/p>\n<hr data-start=\"2779\" data-end=\"2782\" \/>\n<h3 data-section-id=\"ski776\" data-start=\"2784\" data-end=\"2817\">Step 5: Test With Another PSU<\/h3>\n<p data-start=\"2819\" data-end=\"2840\">Most reliable method.<\/p>\n<hr data-start=\"2842\" data-end=\"2845\" \/>\n<h3 data-section-id=\"p1imp\" data-start=\"2847\" data-end=\"2881\">Step 6: Check Power Connectors<\/h3>\n<ul data-start=\"2883\" data-end=\"2934\">\n<li data-section-id=\"l696kw\" data-start=\"2883\" data-end=\"2897\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">GPU<\/a> cables<\/li>\n<li data-section-id=\"1t306b0\" data-start=\"2898\" data-end=\"2911\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">CPU<\/a> 8-pin<\/li>\n<li data-section-id=\"1tam11j\" data-start=\"2912\" data-end=\"2934\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-but-no-post-complete-diagnostic-guide\/\">motherboard<\/a> 24-pin<\/li>\n<\/ul>\n<p data-start=\"2936\" data-end=\"2971\">Loose cables can mimic <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> failure.<\/p>\n<hr data-start=\"2973\" data-end=\"2976\" \/>\n<h2 data-section-id=\"1o9s51l\" data-start=\"2978\" data-end=\"2996\">Advanced Causes<\/h2>\n<h3 data-section-id=\"nmq89e\" data-start=\"2998\" data-end=\"3032\">Transient Spikes (Modern GPUs)<\/h3>\n<p data-start=\"3034\" data-end=\"3097\">New GPUs draw sudden power spikes that weak PSUs cannot handle.<\/p>\n<hr data-start=\"3099\" data-end=\"3102\" \/>\n<h3 data-section-id=\"f60mvq\" data-start=\"3104\" data-end=\"3130\">Multi-Rail Instability<\/h3>\n<p data-start=\"3132\" data-end=\"3179\">Improper load distribution can cause shutdowns.<\/p>\n<hr data-start=\"3181\" data-end=\"3184\" \/>\n<h3 data-section-id=\"li261i\" data-start=\"3186\" data-end=\"3204\">Ripple Voltage<\/h3>\n<p data-start=\"3206\" data-end=\"3255\">Internal <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> instability affects system behavior.<\/p>\n<hr data-start=\"3257\" data-end=\"3260\" \/>\n<h2 data-section-id=\"1gmicbp\" data-start=\"3262\" data-end=\"3286\">How to Fix PSU Issues<\/h2>\n<ul data-start=\"3288\" data-end=\"3424\">\n<li data-section-id=\"13fubwi\" data-start=\"3288\" data-end=\"3326\">replace <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> (most common solution)<\/li>\n<li data-section-id=\"bs9lt\" data-start=\"3327\" data-end=\"3354\">use higher wattage unit<\/li>\n<li data-section-id=\"t7cnvn\" data-start=\"3355\" data-end=\"3379\">choose quality brand<\/li>\n<li data-section-id=\"8mefy2\" data-start=\"3380\" data-end=\"3399\">improve airflow<\/li>\n<li data-section-id=\"wavaxq\" data-start=\"3400\" data-end=\"3424\">use surge protection<\/li>\n<\/ul>\n<hr data-start=\"3426\" data-end=\"3429\" \/>\n<h2 data-section-id=\"ys6l7e\" data-start=\"3431\" data-end=\"3465\">How to Choose a Replacement PSU<\/h2>\n<p data-start=\"3467\" data-end=\"3476\">Consider:<\/p>\n<ul data-start=\"3478\" data-end=\"3584\">\n<li data-section-id=\"qif9hv\" data-start=\"3478\" data-end=\"3516\">sufficient wattage (with headroom)<\/li>\n<li data-section-id=\"1htdm4i\" data-start=\"3517\" data-end=\"3542\">80 PLUS certification<\/li>\n<li data-section-id=\"4vw0e7\" data-start=\"3543\" data-end=\"3562\">reputable brand<\/li>\n<li data-section-id=\"14dsyaa\" data-start=\"3563\" data-end=\"3584\">proper connectors<\/li>\n<\/ul>\n<hr data-start=\"3586\" data-end=\"3589\" \/>\n<h2 data-section-id=\"ffbs2u\" data-start=\"3591\" data-end=\"3621\">How Serious Is This Problem<\/h2>\n<p data-start=\"3623\" data-end=\"3646\">Severity: <strong data-start=\"3633\" data-end=\"3646\">Very High<\/strong><\/p>\n<p data-start=\"3648\" data-end=\"3666\">A failing <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> can:<\/p>\n<ul data-start=\"3668\" data-end=\"3751\">\n<li data-section-id=\"17m4yu3\" data-start=\"3668\" data-end=\"3695\">damage other components<\/li>\n<li data-section-id=\"14i93lm\" data-start=\"3696\" data-end=\"3715\">cause data loss<\/li>\n<li data-section-id=\"hj5atv\" data-start=\"3716\" data-end=\"3751\">lead to complete system failure<\/li>\n<\/ul>\n<p data-start=\"3753\" data-end=\"3790\">Immediate replacement is recommended.<\/p>\n<hr data-start=\"3792\" data-end=\"3795\" \/>\n<h2 data-section-id=\"1hryhf7\" data-start=\"3797\" data-end=\"3803\">FAQ<\/h2>\n<h3 data-section-id=\"nmp2g9\" data-start=\"3805\" data-end=\"3836\">Can a bad PSU damage my PC?<\/h3>\n<p data-start=\"3838\" data-end=\"3886\">Yes. It can damage <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">GPU<\/a>, <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-but-no-post-complete-diagnostic-guide\/\">motherboard<\/a> and storage.<\/p>\n<hr data-start=\"3888\" data-end=\"3891\" \/>\n<h3 data-section-id=\"mv4ios\" data-start=\"3893\" data-end=\"3934\">Why does my PC restart only in games?<\/h3>\n<p data-start=\"3936\" data-end=\"3973\">Because power consumption is highest.<\/p>\n<hr data-start=\"3975\" data-end=\"3978\" \/>\n<h3 data-section-id=\"1wo08po\" data-start=\"3980\" data-end=\"4007\">Can PSU fail gradually?<\/h3>\n<p data-start=\"4009\" data-end=\"4046\">Yes. Symptoms often appear over time.<\/p>\n<hr data-start=\"4048\" data-end=\"4051\" \/>\n<h3 data-section-id=\"t0szpp\" data-start=\"4053\" data-end=\"4095\">Is testing with another PSU necessary?<\/h3>\n<p data-start=\"4097\" data-end=\"4133\">Yes. It is the most reliable method.<\/p>\n<hr data-start=\"4135\" data-end=\"4138\" \/>\n<h2 data-section-id=\"8dtpi\" data-start=\"4140\" data-end=\"4153\">Conclusion<\/h2>\n<p data-start=\"4155\" data-end=\"4272\">The <strong data-start=\"4159\" data-end=\"4192\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-then-off-causes-and-fix\/\">power supply failure<\/a> symptoms<\/strong> can vary widely, but they all point to one core issue: <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-then-off-causes-and-fix\/\">unstable power delivery<\/a>.<\/p>\n<p data-start=\"4274\" data-end=\"4365\">Correct diagnosis is essential because <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> problems can mimic failures in other components.<\/p>\n<p data-start=\"4367\" data-end=\"4449\">Replacing a faulty <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PSU<\/a> early prevents further damage and ensures system stability.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"VUXpgMaNbT\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/\">PC Restarts Under Load: Causes and Fix Guide<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8222;PC Restarts Under Load: Causes and Fix Guide&#8221; &#8211; Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-under-load-causes-and-fix-guide\/embed\/#?secret=HjrXEngbdp#?secret=VUXpgMaNbT\" data-secret=\"VUXpgMaNbT\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The power supply unit (PSU) is one of the most critical components in any PC. When it starts to fail, the system can show a wide range of unstable and confusing behaviors. Many users misdiagnose PSU issues as: GPU failure motherboard problems RAM instability In reality, a failing PSU can affect every component in the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":40472,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","ai_generated_summary":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[36515],"tags":[36299,36339,46297,47292,47298,47288,47290,47296,47294,47300],"class_list":["post-41531","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it","tag-bam","tag-diagnoza","tag-hardware-diagnostics","tag-pc-power-issue","tag-pc-shutdown-problem","tag-power-supply-failure-symptoms","tag-psu-problem","tag-psu-replacement","tag-random-restart-pc","tag-unstable-pc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Power Supply Failure Symptoms: Complete Diagnostic Guide - Diagnoza BAM<\/title>\n<meta name=\"description\" content=\"Power supply failure symptoms explained. 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This\u2026","rel":"","context":"\u00cen \u201eIT-EN\u201d","block_context":{"text":"IT-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/it\/"},"img":{"alt_text":"asus xc","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":41533,"url":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-turns-on-but-no-post-complete-diagnostic-guide\/","url_meta":{"origin":41531,"position":3},"title":"PC Turns On But No POST: Complete Diagnostic Guide","author":"Bejenaru Alexandru Ionut","date":"23 aprilie 2026","format":false,"excerpt":"A very common and critical PC issue is when the system appears to power on \u2014 fans spin, lights turn on \u2014 but the system does not complete POST (Power-On Self Test). This means: no display no BIOS screen no boot process This issue is often confused with simple display\u2026","rel":"","context":"\u00cen \u201eIT-EN\u201d","block_context":{"text":"IT-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/it\/"},"img":{"alt_text":"asus xc","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":40471,"url":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-not-turning-on-complete-diagnosis-guide\/","url_meta":{"origin":41531,"position":4},"title":"PC Not Turning On: Complete Diagnosis Guide","author":"Bejenaru Alexandru Ionut","date":"10 aprilie 2026","format":false,"excerpt":"A computer that does not turn on is one of the most frustrating issues users can face. Unlike software-related problems, this situation often involves hardware failure, making diagnosis more complex. 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The system may show: no power no lights no fans or minimal response with no boot This situation can be caused by multiple components, and incorrect diagnosis often leads to unnecessary\u2026","rel":"","context":"\u00cen \u201eIT-EN\u201d","block_context":{"text":"IT-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/it\/"},"img":{"alt_text":"asus xc","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/04\/asus_x550c.webp?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"jetpack_shortlink":"https:\/\/wp.me\/pf97go-aNR","pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts\/41531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/comments?post=41531"}],"version-history":[{"count":2,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts\/41531\/revisions"}],"predecessor-version":[{"id":41968,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/posts\/41531\/revisions\/41968"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/media\/40472"}],"wp:attachment":[{"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/media?parent=41531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/categories?post=41531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diagnozabam.ro\/sfaturi\/wp-json\/wp\/v2\/tags?post=41531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}