When you cleared the cmos, did you unplug the power?Wait ten minutes and then turn on the PC. Try a few more times.
Here is the tutorial https://mega.nz/file/XypwTISY#DVT0BsjOgiPkZ-drQaj88JH9Z7f7qpKGP2E3nMHW8ms or https://url.bee-link.cn/5FdW If the problem persists, please try other solutions:
①Please change another HDMI cable or power supply.
②Please take out the RAM ,please clean the contacts of the RAM with a rubber. Here is the tutorial https://url.bee-link.cn/AzzB or https://mega.nz/file/7nwDmCaL#UyzSmVkqJG8HW9dhjHhLkkzdP9gt2Br3xyCG1SCdbrA
③ Please try to use MEMTEST software tests the memory stick.
⑤Please tell us if the Keyboard light is on ?(Very important). If the keyboard light is on, it should go to the system, we need to troubleshoot HDMI or the monitor.
⑥Please press delete key as soon as you turn on the PC, so that you can go to BIOS.
Please send us a picture of the Main page.We will check if you need to update the BIOS.
