• ASUS UX461U - po wymianie CPU brak obrazu

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#1 ASUS UX461U - po wymianie CPU brak obrazu


by lukasrz 11 December 2023, 16:39
Witam,

laptop

ASUS UX461U
płyta główna UX461UN REV 2.1
IT8995VG-128
WINBOND 25Q64JVSIQ

W ASUSie UX461U uszkodzony miałem procesor i5-8250U symbol SR3LA, zwarcie na PCH, brak reakcji, brak 3,3V.

Procesor wymieniłem na I5-8250U ale z symbolem SR3LB + czyszczenie ME REGION, laptop startuje bez obrazu, napięcia 3.3V i 5.0V są, 1.0V na PCH, brak zasilania CPU i brak napięcia na RAM.

Początkowo wentylator kręci się powoli, a po kilku sekundach przyśpiesza do maksymalnych obrotów.

Pytanie czy to może być wina nieco innego CPU, nie wiem jakie są między nimi różnice? Dawcą procesora był laptop DELL.

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Re: ASUS UX461U - po wymianie CPU brak obrazu


by Google Adsense [BOT] 11 December 2023, 16:39

#2 Re: ASUS UX461U - po wymianie CPU brak obrazu


by klarus 11 December 2023, 18:33
Witam. Procesor powinien być ok. Sprawdź dokładnie przetwornice RAM. Czy sa napięcia SUS z mostu. Jeśli nie ma to albo uszkodzony procesor dawca albo zle wlutowany. Na jakich kulkach go wlutowałeś? Jeśli mniejsze niz 0.45mm to szkoda Twojego czasu bo wtedy lutowanie prockow z cienkim laminatem to loteria.
Pozdrawiam

#3 Re: ASUS UX461U - po wymianie CPU brak obrazu


by lukasrz 11 December 2023, 20:02
Wlutowalem na 0.45 ołów, siadł pięknie i równo. Raczej tego nie podejrzewam. Nie mam boardview, ale spróbuje jutro jakies pomiary wykonać.

Most ledwo cieply 30-35stopni a CPU nic nawet nie próbuje ruszać.

Re: ASUS UX461U - po wymianie CPU brak obrazu


by Google Adsense [BOT] 11 December 2023, 20:02
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