• Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

It is currently 14 December 2024, 05:51

Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

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#1 Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

by Tadmen • 29 July 2024, 16:09
Laptop jak w temacie, po włączeniu rośnie pobór prądu liniowo do ok 1,8 A i tak pozostaje .
Nie mam karty diagnostycznej na slot M2 więc nie wiem w jakim momencie procedury POST się zatrzymuje
Bios zmieniony, dzięki pomocy kolegi z forum który udostępnił wsad .
Posiłkuję się schematem z płyty MS-16P61 w/g którego brakuje mi napięcia VCCGT na cewce PL3
Rezystancja i napięcia na poszczególnych cewkach :
PL3 - 3 Om 0V
PL4 , PL5 , PL6 , PL7 , - 1,4 Om - +097 V
PL8 , PL9 - 0,9 Om - +07 V
PL10 - 24 Om - +1 V
PL13 - 18 Om - +1 V
PL14 - 12 Om - +1,24V
PL15 - 530 Om - +1,8V
PL16 - 3KOm - +5V
PL18 - 23 Om - +1,1 V
PL19 - 3,8KOm - +3,3 V
Będę wdzięczny za jakąś podpowiedż .

Re: Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

by Google Adsense [BOT] • 29 July 2024, 16:09

#2 Re: Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

by matic • 30 July 2024, 08:08
Tadmen wrote:PL14 - 12 Om
Hello!
Is this measurement correct?
Please, remeasure this resistance with and without RAM memory connected to the board.

#3 Re: Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

by Tadmen • 30 July 2024, 09:40
Potwierdzam , na PL14 bez pamięci jest 12 Om , natomiast przy włożonej pamięci jest 10,9 Om .
Jakoś mnie to nie zastanawiało ponieważ napięcie na tej cewce wynosi 1,24 V, a więc zbliżone do napięcia zasilania DDR4 .

#4 Re: Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

by matic • 30 July 2024, 13:09
So this resistance is definitely way too low.
Remove the coil PL14 from the board and check on which side of the coil you have a low resistance to ground. If the low resistance is present on the system side, I think it's most likely caused by a damaged CPU.
In such a case, remove the CPU from the board and remeasure the resistance to ground on coil PL14.

Re: Laptop MSI model MS-16p8, płyta MS-16P81 VER:1.0 , brak napięcia na PL3

by Google Adsense [BOT] • 30 July 2024, 13:09
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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