Hello!! I have just bought a PCSPECIALIST Tornado R3 Gaming PC - AMD Ryzen 3, GTX 1650, 1TB HHD 256 SSD M.2 secondhand, however it will only display “no signal” on every monitor I use, it will then go to black and wait for signal. I’ve tried different hdmi cables, VGA cables and tried different outputs, tried a hard reset but nothing will work! Please if anyone can help me - I’m not very tech savvy so anything anyone could do !!