• MSI B150M PRO-VDH - Nie uruchamia się

It is currently 14 December 2024, 14:32

 [SOLVED] MSI B150M PRO-VDH - Nie uruchamia się

 Forum rules: Click here to view the forum rules

  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
  4. Uploading of any complete schematics, BIOS / firmware files or any other kind of documentation, or linking to 3rd party websites with such files, is STRICTLY PROHIBITED. You can only upload the small portion of documentation or, link to BIOS file on UNVERIFIED BIOS FILES subforum, which simplifies the diagnostics/repair. You are not allowed to upload more then one complete page of instruction/schematic per single topic. The file you upload must not contain any watermarks, "confidential" markings, links or email addresses and cannot be password-protected.
  5. It is only permitted to describe one faulty device per single topic - you should always open a new topic for each subsequent device.
  6. Requesting of the full schematics, BoardView files, BIOS files or any other kind of documentation is NOT ALLOWED in this subforum. If you need to ask for any of these, you should open a new topic in DOCUMENTATION/BIOS REQUEST subforum.

#1 MSI B150M PRO-VDH - Nie uruchamia się

by lock99 • 9 February 2022, 11:53
Cześć
Proszę o pomoc w naprawie płyty głównej od komputera stacjonarnego.
Płyta przestała się uruchamiać po wyłączeniu komputera przyciskiem zasilania na zasilaczu.
Teraz nie reaguje na wciśnięcie klawisza zasilania, nie zapalają się żadne kontrolki.
Przeprogramowałem BIOS wsadem ze strony MSI - bez zmian.
Złącze ATX
n.9 - 5.14V
n.16 - 4.2V (nie spada do 0 po wciśnięciu przycisku zasilania)
reszta 0V

Na przycisku zasilania jest 3V, żadnej reakcji po wciśnięciu.
Bateria ma 3V

KBC
n.1 - 0V - 42Ω
n.46- 3.3V
n.60 - 0V
n.61 - 3.3V
n.82 - 0V
n.84 - 0V
n.101 - 0V - 32Ω
n.110 - 2V
Image

Re: MSI B150M PRO-VDH - Nie uruchamia się

by Google Adsense [BOT] • 9 February 2022, 11:53

#2 Re: MSI B150M PRO-VDH - Nie uruchamia się

by lock99 • 11 February 2022, 10:01
Czy ktoś z kolegów ma jakiś pomysł, jak to dalej ruszyć, utknąłem z tą płytą :(

#3 Re: MSI B150M PRO-VDH - Nie uruchamia się

by matic • 12 February 2022, 12:07
Hello!

- Measure the voltage to ground on pin 6 of chip U25.
- Measure the voltages to ground on pins 1, 4, 5 of chip U26.
- Measure the voltages to ground on pins 11, 63, 64, 66, 73, 108, 116 of KBC chip.

- Measure the voltages to ground on pins 60, 61 of KBC chip in the following cases:
a) Power button released.
b) Power button pressed.

#4 Re: MSI B150M PRO-VDH - Nie uruchamia się

by lock99 • 12 February 2022, 14:15
U25
n.6 - 0V - 0.6Ω

U26
n.1 - 2.9V
n.4 - 2.9V
n.5 - 2.9V

KBC
n.11 - 3.3V
n.63 - 2.2V
n.64 - 0V
n.66 - 0V
n.73 - 3.3V
n.108 - 3.3V
n.116 - 1.5V

n.60 - Power button released - 0.02V, Power button pressed - 0V
n.61 - Power button released - 3.3V, Power button pressed - 0V

#5 Re: MSI B150M PRO-VDH - Nie uruchamia się  [SOLVED] 

by matic • 12 February 2022, 15:49
lock99 wrote:U25
n.6 - 0V - 0.6Ω
It is a short circuit to ground.
Perform a short circuit test described here on pin 6 of chip U25. Limit the voltage to 3V.
The PCH chip is very likely damaged.

#6 Re: MSI B150M PRO-VDH - Nie uruchamia się

by lock99 • 14 February 2022, 18:30
Przy próbie zwarciowej, bardzo mocno nagrzewał się PCH. Przy cenie tej płyty naprawa nie opłacalna. Zakupiłem cała płytę.
Dziękuję Matic za pomoc.

Re: MSI B150M PRO-VDH - Nie uruchamia się

by Google Adsense [BOT] • 14 February 2022, 18:30
Similar Topics
  Lenovo Legion 5 Pro 16ACH6H nie uruchamia się, nie ładuje baterii  [SOLVED]
Apple MacBook Pro A1398 820-3787-A nie uruchamia się nie ładuje baterii
Schemat MSI B150M BAZOOKA PLUS MS-7A46
  Legion 5 PRO 16ACH6H - Nie uruchamia się do końca  [SOLVED]
Gigabyte B550M AORUS PRO-P - Nie uruchamia się
MACBOOK PRO 13 A1989 - Nie uruchamia się

Who is online

Users browsing this forum: No registered users and 1 guest

_______________________________
All rights reserved. Unauthorised copying of this website's content or any of its part is strictly forbidden.
Any trademarks, brand names, products or services published on this website belong to their legal owners, are copyrighted and used for information purposes only.