Tag Desktop PC Repair Guide

Gigabyte H110M-S2 has no CPU power supply. Motherboard model: Gigabyte H110M-S2 REV:1.0, failure phenomenon is not displayed when starting. There is no CPU power supply for measurement, and all other power supplies are normal. The power supply chip is ISL95858.…

A b450 motherboard is turned on and powered off, which can be triggered again.

Lenovo CIH81M does not trigger. The customer brought a Lenovo brand machine and said it was not turned on. Get the hand power, do not trigger, measure the power supply, USB to the ground. Seeing that the motherboard BIOS has…

A colleague sent a Gigabyte B460M POWER motherboard for repair, and the fault phenomenon was that the short switch pin did not trigger.

Colorful 3060 12G is not powered on, and the motherboard is directly removed after the street graphics card. First, the major power supply inductors of the graphics card are measured without obvious short circuit. During the measurement, it is found that Q505B has been turned on to pull down the B pole of Q505A, and Q505A has been turned off, but no 2.5V power supply is detected at the upper end of R600 resistor .. The specific maintenance process is as follows: