• Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu

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#1 Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


by Karamel 19 November 2025, 09:34
Witam. Mam pacjenta
Lenovo L14 gen 1 i7-10510U
Płyta główna GL4A0/GL5A0 NM-C631.

Nie znam historii laptopa, nie ma śladów zalania, jedynie co w slocie karty pamięci były resztki karty z przewodami wszędzie.
A wiec objawy:
Po podłączeniu zasilania zapala sie dioda ładowania, dioda power mrygnie 3 razy i to tyle reakcji laptopa. Pobór prądu jest od razu od 0.5 do 1 A i mocno grzeje się CPU.
Robić coś z tym dalej czy CPU na złom??

Re: Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


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#2 Re: Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


by Vogelek23 19 November 2025, 12:58
Zacznij od pomiarów rezystancji do masy na wszystkich cewkach przetwornic.

#3 Re: Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


by Karamel 19 November 2025, 13:40
Pl1403 2.4R. 1.1V
PL1601. 0.4R. 0V
PL1102. 30R. 0V
PL0903. 6.2R. 0V
PL0906. 6.2R. 0V
PL1003. 9R. 0V
PL0301. 50R. 5.1V
PL0501. 2.2R. 3.4V
PL0401. 40K. 5.1
PL0601. 330. 0V
PL0701. 32K. 0V
PL0202. 90K. 9.3

Jak coś przegapiłem dajcie znać

#4 Re: Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


by Vogelek23 19 November 2025, 18:30
Czy te pomiary wykonywałeś z podłączonym zasilaniem? Jeśli tak, to ponów pomiary rezystancji ale z całkowicie odłączonym zasilaniem (bateria i zasilacz). Jeśli nie, to podłącz zasilacz i po odczekaniu 5 minut sprawdź, który element jest ciepły: kodek audio U7801, przełącznik U7802, kontroler EC czy mniejszy rdzeń CPU.

#5 Re: Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


by Karamel 19 November 2025, 20:55
Mniejszy rdzeń nagrzewa się bardzo.

Re: Lenovo l14 gen 1 brak reakcji na power, grzeje sie cpu


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