System powered up but no screen visible and debug indicators remain off on the motherboard.
System powered up but no screen visible and debug indicators remain off on the motherboard.
Hey, here’s what happened: My phone fell from my desk and hit the front of my PC case. The computer turned off and then back on, but it didn’t show anything—just LEDs lit up and fans spinning. I thought maybe it was a small mistake, so I restarted, but still nothing. I checked RAM, reset CMOS, unplugged and plugged in power cables, tried booting without the GPU, and even connected my GPU via HDMI—it worked and started up. But once it booted, the monitor said “Input Not Support” and that problem hasn’t come back. I’m still stuck; everything lights up but nothing appears. My setup includes a Ryzen 2700X, Radeon 6700XT, B450 Tomohawk Max, 32GB DDR4 RAM, and a Corsair CX750 power supply. As a student, I’m worried about replacing parts and need my PC for university work. I’ll share more details if you think it helps.