Tuesday, October 3, 2023

Gigabyte H81M-DS2 REV2.1 Motherboard Keeps Restarting

Motherboard Model: Gigabyte H81M-DS2 REV2.1

Fault : The Motherboard Keeps Restarting

Repair process:

    A Gigabyte H81M-DS2 REV2.1 motherboard. The fault is that the motherboard keeps restarting after powering on.




    Flashing the BIOS failed. I tested the memory power supply and found that the bus power supply was missing. I checked the drawing and found that it was provided by RT9199. The test power supply, startup, and benchmark were all normal, but pin 4 VOUT had no output.




    After replacing the UP0109P chip, the machine turned on perfectly and repairs were eliminated.




Happy Repairing !!







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