Hello, I am faced with a peculiar problem with my desktop. Actually when I try to switch it on, there is no display and there is no beep. But I can hear the CPU fan and the graphics card fan running normally. Even I can see the HDD activity lights blinking. My desktop config is 8 years old. Gigabyte 890-UD3H. AMD phenon II X4 955 8GB DDR3 RAM (I dont remember the frequency), 2 sticks. 1TB Seagate HDD (changed last year) Gigabyte Nvidia GTX 1050 1GB graphics card (changed in 2017 after previous graphics card was dead). Without the display I cannot diagonize. What could be the problem and solution? I dont want to format the HDD and reinstall windows as I have some data on the HDD (some old photos, documents) which has not been fully backed up yet. Regards.