Hi, I dropped a book behind the computer, may have hit one of the cables behind it.
Now there is no image. How do I best troubleshoot? I have tried a second screen, I have also tried connecting the screen to the image output, the one that is not through the graphics card. The computer starts up, the keyboard and mouse light up, but the screen does not receive a signal. I have also tried 2 other GPUs.
I am going to give the PC away tomorrow to a friend who is having a birthday, it should only have Commandos Behind Enemy Lines, Heroes 3, Red Alert and Age of Empires installed. How do I start checking what's wrong?
I would appreciate your help.
Mobo: AMD ASROCK FM2A85X-ITX
Cpu: AMD A10-6800K CPU A10-Series Quad-Core 4.1GHz 4M 100W Socket FM2
RAM: HyperX Savage 16GB (2x8GB) / 2400MHz / DDR3 / CL11 / HX324C11SRK2/16
PSU: SilverStone 450w SFX form
Fans: Front Corsair 120mm, rear Noctua NF-A6x25 PWM 60mm, Schyte Shuriken CPU cooler.
GPU: AMD RX 580 8GB
OS: Win 10 x64
Now there is no image. How do I best troubleshoot? I have tried a second screen, I have also tried connecting the screen to the image output, the one that is not through the graphics card. The computer starts up, the keyboard and mouse light up, but the screen does not receive a signal. I have also tried 2 other GPUs.
I am going to give the PC away tomorrow to a friend who is having a birthday, it should only have Commandos Behind Enemy Lines, Heroes 3, Red Alert and Age of Empires installed. How do I start checking what's wrong?

Mobo: AMD ASROCK FM2A85X-ITX
Cpu: AMD A10-6800K CPU A10-Series Quad-Core 4.1GHz 4M 100W Socket FM2
RAM: HyperX Savage 16GB (2x8GB) / 2400MHz / DDR3 / CL11 / HX324C11SRK2/16
PSU: SilverStone 450w SFX form
Fans: Front Corsair 120mm, rear Noctua NF-A6x25 PWM 60mm, Schyte Shuriken CPU cooler.
GPU: AMD RX 580 8GB
OS: Win 10 x64