• Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen

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#1 Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen


by franekx6 28 February 2024, 19:40
Witam,
Laptop: Lenovo V15-ADA
PCB: NM-D151
CPU: Ryzen5

Płyta wieszała się, robiło blue screen, artefakty itp. Początkowo obstawiłem wlutowany RAM. Odłączyłem go i płyta korzysta tylko z kości wpinanej. Po tym zabiegu kilka dni wszystko działało w porządku. Obecnie znów zwiechy, BS, artefakty. Gdzie szukać przyczyny? Prawdopodobnie uszkodzone CPU bądź połączenie BGA pod nim?
Podmieniłem RAM, SSD - bez zmian.
Artefakty jak poniżej.
Image
Image

Proszę o pomoc.
Pozdrawiam

Re: Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen


by Google Adsense [BOT] 28 February 2024, 19:40

#2 Re: Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen


by matic 29 February 2024, 09:09
Hello!

Test the machine with external monitor. If there are the same artefacts, try to replace the BIOS chip and flash it with a different dump.

#3 Re: Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen


by franekx6 18 March 2024, 16:35
matic wrote:Test the machine with external monitor.

I disconnected the matrix and connected the monitor via HDMI
Image

matic wrote:If there are the same artefacts, try to replace the BIOS chip and flash it with a different dump.

I replace BIOS chip and reprogramming old dump, and next update BIOS to newest version.

Motherboard still has various symptoms, artefacts, Blue Screen, freeze

#4 Re: Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen  [SOLVED]


by Vogelek23 18 March 2024, 20:04
Czy za pierwszym razem, gdy pamięć wbudowana była włączona, w slocie był dodatkowy moduł RAM? Jeśli tak, sprawdź połączenia pinów slotu pamięci do PCB. Jeśli tu jest w porządku, sprawdź, czy lekkie dociśnięcie CPU jakkolwiek wpływa na jakość obrazu - jeśli nie, CPU jest prawdopodobnie uszkodzony.

#5 Re: Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen


by franekx6 22 April 2024, 14:40
Problem był z połączeniem PCB->CPU. Pomógł reflow CPU.

Re: Lenovo V15-ADA NM-D151 - wiesza się, artefakty, BlueScreen


by Google Adsense [BOT] 22 April 2024, 14:40

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