{"id":41669,"date":"2026-05-08T23:58:14","date_gmt":"2026-05-08T20:58:14","guid":{"rendered":"https:\/\/diagnozabam.ro\/sfaturi\/?p=41669"},"modified":"2026-05-08T23:58:14","modified_gmt":"2026-05-08T20:58:14","slug":"how-to-test-psu-without-tools","status":"publish","type":"post","link":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/how-to-test-psu-without-tools\/","title":{"rendered":"How to Test PSU Without Tools"},"content":{"rendered":"<h2 data-section-id=\"fsass3\" data-start=\"136\" data-end=\"178\">What Does \u201cTest PSU Without Tools\u201d Mean<\/h2>\n<p data-start=\"180\" data-end=\"380\">The process to <strong data-start=\"195\" data-end=\"221\">test <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> without tools<\/strong> refers to basic methods you can use to check if your power supply unit (<a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a>) is working, without using professional equipment like a multimeter or <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> tester.<\/p>\n<p data-start=\"382\" data-end=\"402\">This is useful when:<\/p>\n<ul data-start=\"403\" data-end=\"526\">\n<li data-section-id=\"1cusqbm\" data-start=\"403\" data-end=\"429\">your <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a> does not start<\/li>\n<li data-section-id=\"181m52f\" data-start=\"430\" data-end=\"458\">system restarts randomly<\/li>\n<li data-section-id=\"uzlmdm\" data-start=\"459\" data-end=\"486\">you suspect <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-not-turning-on-complete-diagnosis-guide\/\">PSU failure<\/a><\/li>\n<li data-section-id=\"1lvwp9a\" data-start=\"487\" data-end=\"526\">you want a quick diagnostic at home<\/li>\n<\/ul>\n<p data-start=\"528\" data-end=\"638\">While not 100% accurate, these methods can quickly tell if the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> is completely dead or partially functional.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"KXVjYAeT35\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0230-code-fuel-pump-primary-circuit-malfunction\/\">P0230 Code \u2013 Fuel Pump Primary Circuit Malfunction<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8222;P0230 Code \u2013 Fuel Pump Primary Circuit Malfunction&#8221; &#8211; Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0230-code-fuel-pump-primary-circuit-malfunction\/embed\/#?secret=4cm6xON7Cs#?secret=KXVjYAeT35\" data-secret=\"KXVjYAeT35\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr data-start=\"640\" data-end=\"643\" \/>\n<h2 data-section-id=\"1dn3yy2\" data-start=\"645\" data-end=\"677\">When You Should Test Your PSU<\/h2>\n<p data-start=\"679\" data-end=\"718\">You should test your <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> if you notice:<\/p>\n<ul data-start=\"719\" data-end=\"854\">\n<li data-section-id=\"ofisws\" data-start=\"719\" data-end=\"739\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a> won\u2019t turn on<\/li>\n<li data-section-id=\"6zy1ha\" data-start=\"740\" data-end=\"759\">fans don\u2019t spin<\/li>\n<li data-section-id=\"h40rrs\" data-start=\"760\" data-end=\"790\">system shuts down randomly<\/li>\n<li data-section-id=\"zyir58\" data-start=\"791\" data-end=\"815\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a> turns on then off<\/li>\n<li data-section-id=\"6cew89\" data-start=\"816\" data-end=\"854\">no display but power seems present<\/li>\n<\/ul>\n<p data-start=\"856\" data-end=\"899\">These are classic <strong data-start=\"874\" data-end=\"898\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-not-turning-on-complete-diagnosis-guide\/\">PSU failure<\/a> symptoms<\/strong>.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"C3WMgfMVJn\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0229-code-throttle-pedal-position-sensor-c-intermittent\/\">P0229 Code \u2013 Throttle\/Pedal Position Sensor C Intermittent<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8222;P0229 Code \u2013 Throttle\/Pedal Position Sensor C Intermittent&#8221; &#8211; Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0229-code-throttle-pedal-position-sensor-c-intermittent\/embed\/#?secret=TGkHGhP6CJ#?secret=C3WMgfMVJn\" data-secret=\"C3WMgfMVJn\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr data-start=\"901\" data-end=\"904\" \/>\n<h2 data-section-id=\"1n8dnuu\" data-start=\"906\" data-end=\"948\">Method 1: Paperclip Test (Most Popular)<\/h2>\n<p data-start=\"950\" data-end=\"1003\">This is the easiest way to check if the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> turns on.<\/p>\n<h3 data-section-id=\"onac65\" data-start=\"1005\" data-end=\"1015\">Steps:<\/h3>\n<ol data-start=\"1017\" data-end=\"1253\">\n<li data-section-id=\"y9f399\" data-start=\"1017\" data-end=\"1048\">Turn off <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> and unplug it<\/li>\n<li data-section-id=\"ferk2y\" data-start=\"1049\" data-end=\"1085\">Disconnect <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> from <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">motherboard<\/a><\/li>\n<li data-section-id=\"z3hezy\" data-start=\"1086\" data-end=\"1118\">Locate the 24-pin connector<\/li>\n<li data-section-id=\"g51ju3\" data-start=\"1119\" data-end=\"1206\">Insert a paperclip between:\n<ul data-start=\"1153\" data-end=\"1206\">\n<li data-section-id=\"wme2o6\" data-start=\"1153\" data-end=\"1175\">green wire (PS_ON)<\/li>\n<li data-section-id=\"17ugs7o\" data-start=\"1179\" data-end=\"1206\">any black wire (ground)<\/li>\n<\/ul>\n<\/li>\n<li data-section-id=\"1eydf1q\" data-start=\"1207\" data-end=\"1236\">Plug <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> back into power<\/li>\n<li data-section-id=\"1ljxj7b\" data-start=\"1237\" data-end=\"1253\">Turn <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> ON<\/li>\n<\/ol>\n<h3 data-section-id=\"1pfevyt\" data-start=\"1255\" data-end=\"1266\">Result:<\/h3>\n<ul data-start=\"1268\" data-end=\"1330\">\n<li data-section-id=\"otmf19\" data-start=\"1268\" data-end=\"1296\">Fan spins \u2192 <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> turns on<\/li>\n<li data-section-id=\"1o67eus\" data-start=\"1297\" data-end=\"1330\">No movement \u2192 <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> likely dead<\/li>\n<\/ul>\n<hr data-start=\"1332\" data-end=\"1335\" \/>\n<h2 data-section-id=\"1x5xxf7\" data-start=\"1337\" data-end=\"1354\">Important Note<\/h2>\n<p data-start=\"1356\" data-end=\"1429\">This test only shows if <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> powers on, NOT if it delivers stable voltage.<\/p>\n<p data-start=\"1431\" data-end=\"1476\">A <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> may pass this test but still be faulty.<\/p>\n<hr data-start=\"1478\" data-end=\"1481\" \/>\n<h2 data-section-id=\"mjo5yo\" data-start=\"1483\" data-end=\"1523\">Method 2: Visual and Sound Inspection<\/h2>\n<p data-start=\"1525\" data-end=\"1552\">Turn on the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a> and observe:<\/p>\n<ul data-start=\"1554\" data-end=\"1641\">\n<li data-section-id=\"rdmqde\" data-start=\"1554\" data-end=\"1571\">Do fans spin?<\/li>\n<li data-section-id=\"107doc5\" data-start=\"1572\" data-end=\"1595\">Does <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> fan start?<\/li>\n<li data-section-id=\"1t93lm\" data-start=\"1596\" data-end=\"1618\">Any unusual noise?<\/li>\n<li data-section-id=\"rqsyvl\" data-start=\"1619\" data-end=\"1641\">Any burning <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/why-food-loses-its-taste-when-you-hold-your-nose\/\">smell<\/a>?<\/li>\n<\/ul>\n<p data-start=\"1643\" data-end=\"1657\">Warning signs:<\/p>\n<ul data-start=\"1658\" data-end=\"1705\">\n<li data-section-id=\"1jip4l2\" data-start=\"1658\" data-end=\"1677\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/hdd-clicking-noise-causes-and-data-recovery-guide\/\">clicking<\/a> sounds<\/li>\n<li data-section-id=\"kwx5tr\" data-start=\"1678\" data-end=\"1689\">buzzing<\/li>\n<li data-section-id=\"9ev5nw\" data-start=\"1690\" data-end=\"1705\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/white-smoke-engine-head-gasket-or-condensation\/\">smoke<\/a> <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/why-food-loses-its-taste-when-you-hold-your-nose\/\">smell<\/a><\/li>\n<\/ul>\n<blockquote class=\"wp-embedded-content\" data-secret=\"6HL9jx4VjI\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0228-code-throttle-pedal-position-sensor-c-high-input\/\">P0228 Code \u2013 Throttle\/Pedal Position Sensor C High Input<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8222;P0228 Code \u2013 Throttle\/Pedal Position Sensor C High Input&#8221; &#8211; Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0228-code-throttle-pedal-position-sensor-c-high-input\/embed\/#?secret=Ie1Iyzk1oY#?secret=6HL9jx4VjI\" data-secret=\"6HL9jx4VjI\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr data-start=\"1707\" data-end=\"1710\" \/>\n<h2 data-section-id=\"1ac1nvn\" data-start=\"1712\" data-end=\"1744\">Method 3: Minimal System Test<\/h2>\n<p data-start=\"1746\" data-end=\"1775\">Disconnect everything except:<\/p>\n<ul data-start=\"1776\" data-end=\"1815\">\n<li data-section-id=\"11qxt3v\" data-start=\"1776\" data-end=\"1791\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">motherboard<\/a><\/li>\n<li data-section-id=\"16wzxda\" data-start=\"1792\" data-end=\"1799\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/bios-beep-codes-complete-guide-for-pc-hardware-diagnosis\/\">CPU<\/a><\/li>\n<li data-section-id=\"1lgo1pd\" data-start=\"1800\" data-end=\"1815\">1 <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/bios-beep-codes-complete-guide-for-pc-hardware-diagnosis\/\">RAM<\/a> stick<\/li>\n<\/ul>\n<p data-start=\"1817\" data-end=\"1831\">Then power on.<\/p>\n<p data-start=\"1833\" data-end=\"1863\">If system behaves differently:<\/p>\n<ul data-start=\"1864\" data-end=\"1898\">\n<li data-section-id=\"1tqdehg\" data-start=\"1864\" data-end=\"1898\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> may be unstable under load<\/li>\n<\/ul>\n<hr data-start=\"1900\" data-end=\"1903\" \/>\n<h2 data-section-id=\"1pvodiy\" data-start=\"1905\" data-end=\"1943\">Method 4: Swap PSU (Best Real Test)<\/h2>\n<p data-start=\"1945\" data-end=\"1984\">The most reliable method without tools:<\/p>\n<ul data-start=\"1986\" data-end=\"2026\">\n<li data-section-id=\"16hsmcn\" data-start=\"1986\" data-end=\"2026\">replace <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> with a known working one<\/li>\n<\/ul>\n<p data-start=\"2028\" data-end=\"2072\">If system works:<br \/>\n\ud83d\udc49 original <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> is faulty<\/p>\n<hr data-start=\"2074\" data-end=\"2077\" \/>\n<h2 data-section-id=\"1dbruua\" data-start=\"2079\" data-end=\"2115\">Signs PSU Is NOT Working Properly<\/h2>\n<p data-start=\"2117\" data-end=\"2156\">Even if it passes basic test, look for:<\/p>\n<ul data-start=\"2158\" data-end=\"2276\">\n<li data-section-id=\"1tj1fiv\" data-start=\"2158\" data-end=\"2177\">random restarts<\/li>\n<li data-section-id=\"1ul3tnx\" data-start=\"2178\" data-end=\"2208\">system freezing under load<\/li>\n<li data-section-id=\"1p7iulc\" data-start=\"2209\" data-end=\"2229\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">GPU<\/a> not powering<\/li>\n<li data-section-id=\"zyir58\" data-start=\"2230\" data-end=\"2254\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/\">PC<\/a> turns on then off<\/li>\n<li data-section-id=\"1cnkgb6\" data-start=\"2255\" data-end=\"2276\">unstable behavior<\/li>\n<\/ul>\n<blockquote class=\"wp-embedded-content\" data-secret=\"57PMwp1o4H\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0227-code-throttle-pedal-position-sensor-c-low-input\/\">P0227 Code \u2013 Throttle\/Pedal Position Sensor C Low Input<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8222;P0227 Code \u2013 Throttle\/Pedal Position Sensor C Low Input&#8221; &#8211; Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0227-code-throttle-pedal-position-sensor-c-low-input\/embed\/#?secret=RVtZQNRTTO#?secret=57PMwp1o4H\" data-secret=\"57PMwp1o4H\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr data-start=\"2278\" data-end=\"2281\" \/>\n<h2 data-section-id=\"fel55y\" data-start=\"2283\" data-end=\"2322\">Limitations of Testing Without Tools<\/h2>\n<p data-start=\"2324\" data-end=\"2357\">Without a multimeter, you cannot:<\/p>\n<ul data-start=\"2358\" data-end=\"2438\">\n<li data-section-id=\"galaxj\" data-start=\"2358\" data-end=\"2387\">measure voltage stability<\/li>\n<li data-section-id=\"fyq57h\" data-start=\"2388\" data-end=\"2405\">detect ripple<\/li>\n<li data-section-id=\"bk9hci\" data-start=\"2406\" data-end=\"2438\">verify full load performance<\/li>\n<\/ul>\n<p data-start=\"2440\" data-end=\"2486\">So:<br \/>\n\ud83d\udc49 these tests are basic, not definitive<\/p>\n<hr data-start=\"2488\" data-end=\"2491\" \/>\n<h2 data-section-id=\"1x7yjiv\" data-start=\"2493\" data-end=\"2521\">When You MUST Replace PSU<\/h2>\n<p data-start=\"2523\" data-end=\"2546\">Replace immediately if:<\/p>\n<ul data-start=\"2548\" data-end=\"2663\">\n<li data-section-id=\"9cty6\" data-start=\"2548\" data-end=\"2570\">no response at all<\/li>\n<li data-section-id=\"e46hqw\" data-start=\"2571\" data-end=\"2588\">burning <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=\"1a43qel\" data-start=\"2589\" data-end=\"2607\">visible damage<\/li>\n<li data-section-id=\"10rupyt\" data-start=\"2608\" data-end=\"2638\">system unstable under load<\/li>\n<li data-section-id=\"8abs7j\" data-start=\"2639\" data-end=\"2663\">fails paperclip test<\/li>\n<\/ul>\n<hr data-start=\"2665\" data-end=\"2668\" \/>\n<h2 data-section-id=\"1m8s7eb\" data-start=\"2670\" data-end=\"2687\">Safety Warning<\/h2>\n<p data-start=\"2689\" data-end=\"2695\">Never:<\/p>\n<ul data-start=\"2696\" data-end=\"2787\">\n<li data-section-id=\"1y20qaj\" data-start=\"2696\" data-end=\"2715\">open <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> casing<\/li>\n<li data-section-id=\"kb8eye\" data-start=\"2716\" data-end=\"2745\">touch internal components<\/li>\n<li data-section-id=\"1ceq611\" data-start=\"2746\" data-end=\"2787\">test while wet or grounded improperly<\/li>\n<\/ul>\n<p data-start=\"2789\" data-end=\"2818\">PSUs store dangerous voltage.<\/p>\n<hr data-start=\"2820\" data-end=\"2823\" \/>\n<h2 data-section-id=\"10qn8xj\" data-start=\"2825\" data-end=\"2843\">Common Mistakes<\/h2>\n<p data-start=\"2845\" data-end=\"2851\">Avoid:<\/p>\n<ul data-start=\"2852\" data-end=\"2990\">\n<li data-section-id=\"13uenxh\" data-start=\"2852\" data-end=\"2898\">testing <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> while connected to full system<\/li>\n<li data-section-id=\"d4lzqv\" data-start=\"2899\" data-end=\"2921\">using wrong cables<\/li>\n<li data-section-id=\"ur4sye\" data-start=\"2922\" data-end=\"2957\">assuming fan spin = working <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a><\/li>\n<li data-section-id=\"h1r280\" data-start=\"2958\" data-end=\"2990\">ignoring intermittent issues<\/li>\n<\/ul>\n<blockquote class=\"wp-embedded-content\" data-secret=\"6hHof80yGS\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0226-code-throttle-pedal-position-sensor-c\/\">P0226 Code \u2013 Throttle\/Pedal Position Sensor C<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8222;P0226 Code \u2013 Throttle\/Pedal Position Sensor C&#8221; &#8211; Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/p0226-code-throttle-pedal-position-sensor-c\/embed\/#?secret=8IBbdbLJ8V#?secret=6hHof80yGS\" data-secret=\"6hHof80yGS\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr data-start=\"2992\" data-end=\"2995\" \/>\n<h2 data-section-id=\"8dtpi\" data-start=\"2997\" data-end=\"3010\">Conclusion<\/h2>\n<p data-start=\"3012\" data-end=\"3124\">Testing a <strong data-start=\"3022\" data-end=\"3043\"><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> without tools<\/strong> is possible using simple methods like the paperclip test and system observation.<\/p>\n<p data-start=\"3126\" data-end=\"3134\">However:<\/p>\n<ul data-start=\"3135\" data-end=\"3210\">\n<li data-section-id=\"1blqsrx\" data-start=\"3135\" data-end=\"3172\">these tests are not 100% reliable<\/li>\n<li data-section-id=\"kvjthq\" data-start=\"3173\" data-end=\"3210\">best confirmation is swapping <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a><\/li>\n<\/ul>\n<p data-start=\"3212\" data-end=\"3288\">If in doubt, replacing the <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/gpu-fans-spin-but-no-display-complete-fix-guide\/\">PSU<\/a> is always safer than risking <a href=\"https:\/\/diagnozabam.ro\/sfaturi\/blog\/5-beeps-on-pc-startup-cpu-error-fix\/\">hardware<\/a> damage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does \u201cTest PSU Without Tools\u201d Mean The process to test PSU without tools refers to basic methods you can use to check if your power supply unit (PSU) is working, without using professional equipment like a multimeter or PSU tester. This is useful when: your PC does not start system restarts randomly you suspect [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":41670,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","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}},"categories":[36515],"tags":[36299,36339,46297,47737,47741,47745,47739,47684,47743,47735],"class_list":["post-41669","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it","tag-bam","tag-diagnoza","tag-hardware-diagnostics","tag-paperclip-test-psu","tag-pc-no-power-fix","tag-pc-repair-guide","tag-power-supply-test","tag-psu-not-working","tag-psu-troubleshooting","tag-test-psu-without-tools"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to Test PSU Without Tools - Diagnoza BAM<\/title>\n<meta name=\"description\" content=\"Test PSU without tools using simple methods like the paperclip test. 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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\u2026","rel":"","context":"\u00cen \u201eIT-EN\u201d","block_context":{"text":"IT-EN","link":"https:\/\/diagnozabam.ro\/sfaturi\/category\/it\/"},"img":{"alt_text":"wp","src":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/03\/wp-17740335830706547887783535806789.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/03\/wp-17740335830706547887783535806789.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/03\/wp-17740335830706547887783535806789.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/03\/wp-17740335830706547887783535806789.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/diagnozabam.ro\/sfaturi\/wp-content\/uploads\/2026\/03\/wp-17740335830706547887783535806789.webp?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":41582,"url":"https:\/\/diagnozabam.ro\/sfaturi\/blog\/pc-restarts-randomly-causes-and-fix\/","url_meta":{"origin":41669,"position":2},"title":"PC Restarts Randomly: Causes and Fix","author":"Bejenaru Alexandru Ionut","date":"26 aprilie 2026","format":false,"excerpt":"What Does \u201cPC Restarts Randomly\u201d Mean The issue where a PC restarts randomly is one of the most frustrating problems users encounter. The system may reboot without warning while browsing, gaming, or even idling. 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Unlike software-related problems, this situation often involves hardware failure, making diagnosis more complex. 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