• Płyta GA-B75M-D2V rev: 1.0 - czasami wystartuje, reset ustawień BIOS.

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Płyta GA-B75M-D2V rev: 1.0 - czasami wystartuje, reset ustawień BIOS.

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  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.
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 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

#1 Płyta GA-B75M-D2V rev: 1.0 - czasami wystartuje, reset ustawień BIOS.

by HotIce • 13 February 2022, 15:20
Cześć,
Walczę z przypadłością tej płyty, po kilku, kilkunastu próbach podania zasilania i włączenia potrafi wystartować ale zawsze wyświetla informację że ustawienia bios zresetowano do domyślnych, a większości przypadków po włączeniu na zworce (power) jest start, działa wentylator cpu, dioda lan nie zaczyna migać i ekran czarny. Wykonałem reflow mostka PCH, bios wgrany najnowszy ze strony Gigabyte, bateria nowa 3.2v mierzone z drugiej strony na płyty na pinach podczas pracy, cpu zmieniany i RAM też, o co tu chodzi? wada mostka?

Re: Płyta GA-B75M-D2V rev: 1.0 - czasami wystartuje, reset ustawień BIOS.

by Google Adsense [BOT] • 13 February 2022, 15:20

#2 Re: Płyta GA-B75M-D2V rev: 1.0 - czasami wystartuje, reset ustawień BIOS.

by matic • 17 February 2022, 21:47
Hello!

Perform the following measurements with connected RTC battery only (without power supply connected):
- Measure the voltage on capacitors C91, C92.
- Measure the voltages to ground on both pins of quartz X2 with oscilloscope. If you don't have one, measure with a multimeter.

Re: Płyta GA-B75M-D2V rev: 1.0 - czasami wystartuje, reset ustawień BIOS.

by Google Adsense [BOT] • 17 February 2022, 21:47
 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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