Derek
Here are some potential 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://mega.nz/file/XqZX0TIR#_DtO2oa4aRP4bWtvxgKLj4QGhBpQ959cg5U3Yw4u1Cc]
Next,please take out one RAM and leave the other one in it to test if the RAM is defective or not. When testing, please turn on the PC, and wait about one minute,
if you can go to the system, Please repeatedly press delete key as soon as your restart the PC, go to BIOS. Go to Boot option, enable fast boot, press F4 to save. (If the PC comes with onboard RAM, you can ignore this solution )
Please keep pressing the delete key as soon as you turn on the PC, then you can go to the BIOS. You need to be able to access the BIOS to flash the BIOS. If you can’t access it, please contact our after-sales service. Here is our email address: support-pc@bee-link.com(please describe the problem and attach a picture of your serial number and purchase record).