{"id":8222,"date":"2026-09-06T00:00:00","date_gmt":"2026-09-05T21:00:00","guid":{"rendered":"https:\/\/elmeistrai.lt\/?p=8222"},"modified":"2026-01-20T15:47:52","modified_gmt":"2026-01-20T13:47:52","slug":"pozymiai-kad-kompiuterio-maitinimo-blokas-sugedo","status":"publish","type":"post","link":"https:\/\/elmeistrai.lt\/en\/pozymiai-kad-kompiuterio-maitinimo-blokas-sugedo\/","title":{"rendered":"Po\u017eymiai, kad kompiuterio maitinimo blokas sugedo"},"content":{"rendered":"<h2>Kai kompiuteris pradeda keistai elgtis<\/h2>\n<p>Turb\u016bt kiekvienas esame patyr\u0119 t\u0105 nemalon\u0173 moment\u0105, kai kompiuteris tiesiog atsisako dirbti. Galb\u016bt jis netik\u0117tai i\u0161sijungia, o gal visai nebe\u012fsijungia. Da\u017enai kalt\u0119 suver\u010diame operacinei sistemai, virusams ar kokiai nors programinei \u012frangai, ta\u010diau tikrov\u0117 gali b\u016bti daug prozai\u0161kesn\u0117 \u2013 suged\u0119s maitinimo blokas. \u0160is metalinis d\u0117\u017eut\u0117s pavidalo \u012frenginys, kuris paprastai s\u0117di kompiuterio kampe ir kurio niekas nesistebi, kol jis veikia, yra vienas i\u0161 svarbiausi\u0173 kompiuterio komponent\u0173.<\/p>\n<p>Maitinimo blokas (arba PSU \u2013 Power Supply Unit) yra atsakingas u\u017e tai, kad i\u0161 j\u016bs\u0173 sieninio lizdo ateinanti 220V kintamoji srov\u0117 b\u016bt\u0173 paversta \u012f tinkamas nuolatin\u0117s srov\u0117s \u012ftampas, kuri\u0173 reikia visiems kompiuterio komponentams. Tai rei\u0161kia, kad jis turi tiekti stabili\u0105 12V, 5V ir 3.3V \u012ftamp\u0105 procesoriu, vaizdo kortai, stand\u017eiajam diskui ir visiems kitiems komponentams. Kai \u0161is \u012frenginys pradeda gesti, simptomai gali b\u016bti \u012fvairiausi ir ne visada akivaizd\u016bs.<\/p>\n<h2>Klasikinis variantas \u2013 kompiuteris visai ne\u012fsijungia<\/h2>\n<p>Pats akivaizdiausias po\u017eymis, kad maitinimo blokas gali b\u016bti sugad\u0119s, yra tada, kai paspaudus maitinimo mygtuk\u0105 nieko nevyksta. Visi\u0161kai nieko. Joki\u0173 gars\u0173, joki\u0173 \u0161vieseli\u0173, jokio ventiliatoriaus \u016b\u017eesio. Tik tyla. \u017dinoma, prie\u0161 skelbiant maitinimo blok\u0105 kaltu, verta patikrinti kelis paprastus dalykus.<\/p>\n<p>Pirmiausia \u012fsitikinkite, kad maitinimo laidas tikrai \u012fki\u0161tas \u012f lizd\u0105 ir \u012f pat\u012f maitinimo blok\u0105. Skamba juokingai, bet b\u016btent tokios smulkmenos da\u017enai tampa problemos \u0161altiniais. Taip pat patikrinkite, ar ant paties maitinimo bloko esantis jungiklis (jei toks yra) yra \u012fjungtas \u2013 tai ta raudona ar juoda svirtis galin\u0117je kompiuterio pus\u0117je.<\/p>\n<p>Jei visa tai patikrinote ir vis tiek nieko nevyksta, galite atlikti paprast\u0105 test\u0105. I\u0161junkite kompiuter\u012f i\u0161 sieninio lizdo, atidarykite \u0161onin\u012f dangt\u012f ir raskite did\u017eiausi\u0105 ki\u0161tuk\u0105, kuris eina i\u0161 maitinimo bloko \u012f pagrindin\u0119 plok\u0161t\u0119 (tai 20 arba 24 kontakt\u0173 jungtis). Galite pabandyti trumpam sujungti \u017eali\u0105 laid\u0105 su bet kuriuo juodu laidu \u0161ioje jungtyje naudodami s\u0105var\u017e\u0117l\u0119 ar metalin\u012f daikt\u0105. Jei maitinimo blokas sveikas, jo ventiliatorius tur\u0117t\u0173 prad\u0117ti suktis. Jei nesuka \u2013 labai tik\u0117tina, kad blokas tikrai sugedo.<\/p>\n<h2>Netik\u0117ti i\u0161sijungimai ir perkrovimai<\/h2>\n<p>Kartais maitinimo blokas n\u0117ra visi\u0161kai mir\u0119s, bet jau stovi ant mirties slenks\u010dio. Vienas i\u0161 da\u017eniausi\u0173 toki\u0173 b\u016bsen\u0173 po\u017eymi\u0173 \u2013 netik\u0117ti kompiuterio i\u0161sijungimai. Dirbi sau ramiai, ra\u0161ai dokument\u0105 ar \u017ei\u016bri film\u0105, ir staiga \u2013 bum, viskas u\u017eg\u0119sta. Ne m\u0117lynas ekranas, ne klaidos prane\u0161imas, tiesiog viskas i\u0161sijungia, tarsi kas b\u016bt\u0173 i\u0161trauk\u0119s ki\u0161tuk\u0105 i\u0161 lizdo.<\/p>\n<p>Tokia situacija da\u017eniausiai atsiranda tada, kai maitinimo blokas nebegali tiekti pakankamos srov\u0117s visiems komponentams. Ypa\u010d tai pastebima, kai kompiuteris dirba intensyviau \u2013 \u017eaid\u017eiate \u017eaidimus, renderinate vaizdo \u012fra\u0161\u0105 ar atliekate kitas resurs\u0173 reikalaujan\u010dias u\u017eduotis. Tokiais momentais vaizdo korta ir procesorius reikalauja daugiau energijos, o sen\u0117jantis ar silpnas maitinimo blokas tiesiog nebegali to suteikti.<\/p>\n<p>Kartais kompiuteris gali pats automati\u0161kai persikrauti. Tai \u0161iek tiek skiriasi nuo i\u0161sijungimo \u2013 matote, kaip sistema bando v\u0117l \u012fsikrauti, bet rezultatas pana\u0161us. Tokius simptomus gali sukelti ir kitos problemos, pavyzd\u017eiui, perkaitimas ar operacin\u0117s sistemos klaidos, tod\u0117l svarbu atid\u017eiai steb\u0117ti, kada tiksliai tai vyksta.<\/p>\n<h2>Keisti garsai ir kvapai<\/h2>\n<p>J\u016bs\u0173 ausys ir nosis gali b\u016bti puik\u016bs diagnostikos \u012frankiai, kai kalbame apie maitinimo bloko problemas. Sveikas maitinimo blokas dirba tyliai arba skleid\u017eia tik lengv\u0105, tolyg\u0173 ventiliatoriaus \u016b\u017ees\u012f. Jei prad\u0117jote gird\u0117ti keistus garsus \u2013 cyps\u0117jim\u0105, \u017eviegim\u0105, tra\u0161k\u0117jim\u0105 ar net \u016b\u017eim\u0105, kuris skiriasi nuo \u012fprasto \u2013 tai rimtas signalas.<\/p>\n<p>Ypa\u010d pavojingas yra deg\u0117si\u0173 kvapas. Jei jau\u010diate, kad i\u0161 kompiuterio sklinda degusios plastmas\u0117s ar elektronikos kvapas, nedvejodami i\u0161junkite kompiuter\u012f i\u0161 sieninio lizdo. Tai gali reik\u0161ti, kad maitinimo bloke ka\u017ekas dega ar jau sudeg\u0117. Kondensatoriai, rezistoriai ir kiti elektroniniai komponentai, kai jie genda, gali sklesti labai specifin\u012f, nemalon\u0173 kvap\u0105.<\/p>\n<p>Kartais girdimas ir mechaninis garsas \u2013 tarsi ka\u017ekas b\u016bt\u0173 \u012fstrig\u0119 ventiliatoriuje. Tai irgi gali b\u016bti maitinimo bloko problema, nes daugelis j\u0173 turi viduje \u012fmontuot\u0105 ventiliatori\u0173 au\u0161inimui. Per metus ten susirenka dulki\u0173, o ventiliatoriaus guoliai gali susid\u0117v\u0117ti. Nors tai ne visada rei\u0161kia, kad visas blokas sugedo, bet tai tikrai signalas, kad reikia bent jau i\u0161valyti arba pasir\u016bpinti, kol problema netapo rimtesne.<\/p>\n<h2>Ekrano problemos ir grafikos artefaktai<\/h2>\n<p>Gali pasirodyti keista, bet maitinimo bloko problemos gali pasireik\u0161ti ir per ekran\u0105. Jei pastebite keistus grafinius artefaktus \u2013 spalvotus ta\u0161kus, linijas, i\u0161kraipymus ar mirks\u0117jim\u0105 \u2013 ir esate tikri, kad vaizdo korta fizi\u0161kai tvarkinga, problema gali slyp\u0117ti b\u016btent maitinimo bloke.<\/p>\n<p>Vaizdo korta yra vienas i\u0161 labiausiai energijos reikalaujan\u010di\u0173 kompiuterio komponent\u0173. Modernioms vaizdo kortoms reikia stabilios 12V linijos, ir jei maitinimo blokas negali jos u\u017etikrinti, korta pradeda elgtis nenusp\u0117jamai. Ji gali gauti per ma\u017eai energijos arba \u012ftampa gali svyruoti, o tai sukelia vizualinius sutrikimus.<\/p>\n<p>Kartais ekranas tiesiog u\u017eg\u0119sta, nors kompiuteris, regis, tebeveikia \u2013 girdite ventiliatorius, mato, kad lemput\u0117s \u0161vie\u010dia. Tai taip pat gali b\u016bti maitinimo bloko problema, ypa\u010d jei po keli\u0173 sekund\u017ei\u0173 ar minu\u010di\u0173 vaizdas v\u0117l atsiranda.<\/p>\n<h2>USB \u012frenginiai ir periferija keistai veikia<\/h2>\n<p>Ne visi supranta, kad USB prievadai gauna maitinim\u0105 i\u0161 kompiuterio maitinimo bloko. Jei pastebite, kad USB \u012frenginiai atsijungin\u0117ja ir v\u0117l prisijungia, arba apskritai neveikia stabiliai, tai gali b\u016bti susij\u0119s su nepakankamu maitinimu.<\/p>\n<p>Pel\u0117 gali prad\u0117ti \u0161okin\u0117ti ar netgi visai nustoti reaguoti. Klaviat\u016bra gali praleisti klavi\u0161\u0173 paspaudimus. I\u0161oriniai kietieji diskai gali atsijungti darbo metu. Visi \u0161ie simptomai kartu gali rodyti, kad 5V linija, kuri maitina USB prievadus, yra nestabili arba per silpna.<\/p>\n<p>Ypa\u010d tai pastebima, kai prie kompiuterio prijungiate daug USB \u012frengini\u0173 vienu metu. Jei maitinimo blokas jau silpnas, jis tiesiog negali apr\u016bpinti vis\u0173 reikiama energija, ir \u012frenginiai pradeda elgtis nenusp\u0117jamai.<\/p>\n<h2>Kaip patikrinti ir k\u0105 daryti toliau<\/h2>\n<p>Jei \u012ftariate, kad j\u016bs\u0173 maitinimo blokas gali b\u016bti sugad\u0119s, yra keletas dalyk\u0173, kuriuos galite padaryti. Pirmiausia, jei turite multimetr\u0105 ir bent minimali\u0173 elektros \u017eini\u0173, galite patikrinti \u012ftampas. Standartinis ATX maitinimo blokas tur\u0117t\u0173 tiekti +3.3V, +5V, +12V ir -12V \u012ftampas. Jei \u0161ios vert\u0117s labai skiriasi nuo nurodyt\u0173 (daugiau nei 5% nuokrypis), tai ai\u0161kus gedimo po\u017eymis.<\/p>\n<p>Ta\u010diau saugiausia ir patikimiausia b\u016bt\u0173 tiesiog pabandyti kit\u0105, tikrai veikiant\u012f maitinimo blok\u0105. Jei turite draug\u0105 su kompiuteriu arba galite kur nors pasiskolinti, tai geriausias b\u016bdas diagnozuoti problem\u0105. Prijunkite \u017einom\u0105 veikiant\u012f maitinimo blok\u0105 prie savo sistemos ir pa\u017ei\u016br\u0117kite, ar problemos i\u0161nyko.<\/p>\n<p>Svarbu pamin\u0117ti, kad maitinimo bloko viduje yra kondensatoriai, kurie gali i\u0161laikyti elektros kr\u016bv\u012f net ir po to, kai blokas i\u0161jungtas i\u0161 maitinimo. Tod\u0117l niekada nebandykite patys ardyti maitinimo bloko, jei nesate kvalifikuotas specialistas. Tai gali b\u016bti pavojinga gyvybei.<\/p>\n<p>Jei nusprend\u0117te, kad tikrai reikia naujo maitinimo bloko, nepirkite pirmojo pigaus varianto, kur\u012f rasite. Maitinimo blokas yra pagrindas, ant kurio stovi visas j\u016bs\u0173 kompiuteris. Prastas maitinimo blokas gali sugadinti kitus komponentus \u2013 pagrindin\u0119 plok\u0161t\u0119, procesori\u0173, vaizdo kort\u0105. Geriau investuoti \u012f kokybi\u0161k\u0105 maitinimo blok\u0105 nuo \u017einomo gamintojo su bent 80 Plus sertifikatu. Taip pat \u012fsitikinkite, kad jo galia yra pakankama j\u016bs\u0173 sistemai \u2013 jei turite galing\u0105 vaizdo kort\u0105, grei\u010diausiai jums reik\u0117s bent 550-650W maitinimo bloko.<\/p>\n<h2>Kai metalin\u0117 d\u0117\u017eut\u0117 nustoja b\u016bti patikima<\/h2>\n<p>Maitinimo blokas n\u0117ra am\u017einas. Kaip ir visi elektroniniai komponentai, jis turi savo tarnavimo laik\u0105. Vidutini\u0161kai kokybi\u0161kas maitinimo blokas gali tarnauti 5-7 metus, o kai kurie net ilgiau. Ta\u010diau tai priklauso nuo daugelio veiksni\u0173 \u2013 kaip intensyviai naudojate kompiuter\u012f, kokiomis s\u0105lygomis jis dirba, ar yra pakankamas v\u0117dinimas.<\/p>\n<p>Dulk\u0117s yra vienas did\u017eiausi\u0173 maitinimo bloko prie\u0161\u0173. Jos kaupiasi ventiliatoriuje ir ant elektronini\u0173 komponent\u0173, trukdydamos normaliam au\u0161inimui. D\u0117l to blokas perkaista, o komponentai grei\u010diau sensta. Tod\u0117l reguliarus kompiuterio valymas gali \u017eymiai prat\u0119sti maitinimo bloko gyvenim\u0105.<\/p>\n<p>Taip pat verta \u017einoti, kad elektros tinklo svyravimai gali pakenkti maitinimo blokui. Jei j\u016bs\u0173 rajone da\u017enai b\u016bna elektros \u012ftampos \u0161uoli\u0173 ar net trump\u0173 atjungim\u0173, apsvarstykite galimyb\u0119 \u012fsigyti UPS (nepertraukiamo maitinimo \u0161altin\u012f) arba bent jau kokybi\u0161k\u0105 apsaugin\u012f filtr\u0105. Tai gali apsaugoti ne tik maitinimo blok\u0105, bet ir visus kitus kompiuterio komponentus.<\/p>\n<p>Atpa\u017einti maitinimo bloko gedimo po\u017eymius ne visada paprasta, nes jie gali b\u016bti pana\u0161\u016bs \u012f kit\u0173 komponent\u0173 problemas. Ta\u010diau \u017einodami, ko ie\u0161koti \u2013 netik\u0117t\u0173 i\u0161sijungim\u0173, keist\u0173 gars\u0173 ir kvap\u0173, ekrano problem\u0173, USB \u012frengini\u0173 nestabilumo \u2013 galite grei\u010diau nustatyti problem\u0105 ir i\u0161vengti didesni\u0173 b\u0117d\u0173. Atminkite, kad sugad\u0119s maitinimo blokas gali sugadinti ir kitus kompiuterio komponentus, tod\u0117l geriau pasir\u016bpinti problema i\u0161 karto, nei laukti, kol bus per v\u0117lu.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kai kompiuteris pradeda keistai elgtis Turb\u016bt kiekvienas esame patyr\u0119 t\u0105 nemalon\u0173 moment\u0105, kai kompiuteris tiesiog atsisako dirbti. Galb\u016bt jis netik\u0117tai&#8230;<\/p>","protected":false},"author":1,"featured_media":8229,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[15,17,16,7],"tags":[],"class_list":["post-8222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kompiuteriu-remontas-kaune","category-kompiuteriu-remontas-klaipedoje","category-kompiuteriu-remontas-vilniuje","category-kompiuteriu-remontas-kompiuteriai-naujienos-patarimai","wpcat-15-id","wpcat-17-id","wpcat-16-id","wpcat-7-id"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Po\u017eymiai, kad kompiuterio maitinimo blokas sugedo<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/elmeistrai.lt\/en\/pozymiai-kad-kompiuterio-maitinimo-blokas-sugedo\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Po\u017eymiai, kad kompiuterio maitinimo blokas sugedo\" \/>\n<meta property=\"og:description\" content=\"Kai kompiuteris pradeda keistai elgtis Turb\u016bt kiekvienas esame patyr\u0119 t\u0105 nemalon\u0173 moment\u0105, kai kompiuteris tiesiog atsisako dirbti. 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