Hi,
i have a problem with my PC. last year i bough a Z370 FTW, 134-KS-E377-KR motherboard and a SuperNOVA 550 G3, 80 Plus GOLD 550W power supply. i still use my old EVGA GTX 980 GPU. yesterday evening i left my pc on and let it run over night. this morning the computer was off. i tried to turn it back on but it doesn't do anything. no LEDs turned on, no fan started to run, no USB device showed any sign of life. so i opend the case. nothing to see there. only the 5VSB LED was burning in white color. (looked up the manual "a. WHITE: Voltage detected (Does not mean PSU is outputting in-spec; only that this specific voltage is detected)"). the LED Display for the error-codes doesnt show anything. nothing does beep. because everything except the white led was dead, i thought it would be the power supply. so i plugged in an old power supply and still no sign of life except the white 5VSB LED.
i think the motherboard might be gone. it still has warranty on it, but to be honest: i dont want to remove it without beeing shure its realy dead. is there anything else i can check?