Gigabyte H81M-S1 has no CPU power supply. After replacing the IT8620E and ISL95812, the fault is eliminated, and the machine can be used normally.
Asustek A68HM-K can only press F1 when starting the machine. After inspection, it is found that the capacitor SC18 is leaking, causing the voltage to be pulled down. It is OK to replace it.
Gigabyte B365 motherboard does not light up, dry the tin to a 2.5V resistor, and the machine lights up.
Gigabyte GA-B85M-D3V triggered the power failure, dried the resistance, and the troubleshooting and maintenance were completed.
The black screen of the Yingchi GT630 does not display, and the NPN triode for power supply control is defective. After replacing the triode, all power supplies will normally generate a light.
Yingtai B85 motherboard does not light up, and the system lights up successfully after brushing BIOS.
The Sapphire PT-F2A85M-MA motherboard is powered down irregularly. Enter BIOSS and adjust the default voltage 1.4 to about 1.25. Find the H/W monitoring panel and turn on the CUP temperature protection.
The Xiaoyingba GTS450 does not display. When the RT9259A is replaced, the video memory resistor and VCC-PLL voltage are out. A BIOS is replaced, the first and second video memories are soldered, and the fault is still present. Replace a row of 0.1UF capacitors of Golden Finger, and the fault is contacted.
Gigabyte GA-B150M-EVO has no memory power supply. It is normal to replace a resistor.
Gigabyte GA-H81M-DS2-T triggered the power failure, and the WR66 resistance was severely corroded. After the resistance was replaced, the fault was removed.
