The MSI H170M PRO-VDH motherboard didn't respond when it was turned on, but the memory and oscilloscope measured the waveform to find the fault point. After replacing the resistor, it turned on normally.
Dell B75 motherboard didn't respond when it was turned on, and five alarms didn't show. IO chip 35 pin didn't return SUSC# signal. After Jump wire, it turned on normally.
Asus B250M-K motherboard, energy switch does not have CPU VCC. The measurement found that 7002 was damaged. After replacement, it started normally.
After the ASUS GTX580 graphics card water damage, the boot screen doesn't show. Test the line Measuring diode value, replace a few small components, and the display is normal.
Gigabyte-H61M-S1 motherboard Won't Turn On,auto power off, the oscilloscope caught the waveform and found the fault point. After replacement, it started normally.
COLORFUL B150M-K motherboard no booting doesn't display, and there are three common fault points and maintenance ideas, which can quickly solve the problem.
EMB-6011 motherboard does not display when it is turned on, and CPU VCC does not appear. The oscilloscope measures the waveform to find the fault point, and the display is normal after replacing the small components.
Gigabyte ga-h110m-s2 motherboard is not powered on, and five common faults are quickly detected and repaired.
ASUS h81m-ct motherboard starts up, CPU fan turns and stops, the motherboard can enter the startup screen after the temperature is high, power off and restart from time to time, and the oscilloscope can quickly find the fault point by measuring the waveform.