Asus PRIME B250-Plus motherboard is powered on for one second,auto power off,Won't Turn On, PQ3004 is replaced, and the boot is normal.
GALAXY GTX750 Primitive installed the video card to drive the display screen is black or frozen. According to schematic running line measurement, a filter Capacitor was added, and the boot was normal.
ASUS b365 mainboard is not powered on and does not trigger, Nanqiao + 1.0V_ A power supply has no voltage. Replace 5VSB conversion tube and start it normally.
COLORFUL gtx760 graphics card can be booting up into the system, irregular screen is black or frozen, replace VCC filter Capacitor, boot normal.
The VGA of emb-6011 motherboard is not displayed.VCC and c415 of the measuring bridge are not provided with VCC, and r486 is burnt out, resulting in Short circuit. Replace the Capacitor resistor and start the machine normally.
The EMB-6011 motherboard is turned on without display. The oscilloscope measures the waveform, finds the fault point, replaces the damaged chip, and turns on normally.
Inno3D GTX1060-3G video card turned on screen is black or frozen, and the main board Oxygenation was disconnected, resulting in only 5V VCC being normal, and nothing else. After Jump wire, the boot is normal.
The USB interface of Gigabyte-H81M-D2 motherboard can't be used. Only two of the six USB interfaces can be used. Replace two resistors, and the USB interface is normal.
Gigabyte-P61-S3 motherboard can't be turned off. After it is turned off,auto restart, two resistors are replaced, and it is turned on normally.
