Colorful GTX1050 graphics card sometimes displays when it is turned on, and sometimes it doesn't display. The measurement found that Q584 was damaged, and the display was normal after replacement.
The main board of Gigabyte H61m-DS2 was started with auto power off, the waveform was measured by oscilloscope, the fault point was found, and it was successfully repaired after replacement.
GTTAN X graphics card will display a white screen as soon as it is turned on to the desktop, and sometimes the white screen will be stuck when it can be turned on to the system. Replace two MOSFET, and the display will be normal.
Gigabyte GTX970 graphics card runs 3DMRAK screen is black or frozen, and the white screen restarts, filling up three small Capacitor, and the display is normal.
Sapphire rx560 graphics card doesn't light up. It doesn't respond when starting up. Run the line to measure the value. Change the conversion chip circuit. The display is normal.
ASUS ROG Z490 motherboard doesn't have CPU VCC, replacing CPU VCC chip is invalid, replacing IO chip, and the boot is normal.
Rtx2070 graphics card running 3D Blurred screen flicker exit, replace the video memory chip, the display is normal.
Colorful gtx1060-3gd5 graphics card, boot screen is not bright, measure Measuring diode value to find the fault point, replace the NPN transistor, the display is normal.
ASUS AM4 b450m motherboard Won't Turn On, no CLK, no reset, replace a resistor, boot normal.
ZOTAC gtx1080-8g d5x graphics card into the game white screen, replace the damaged VCC chip, the display is normal.
