Hi there,
Please send us a picture of the SN on the bottom of the PC.
①Please take out the RAM ,please clean the contacts of the RAM with a rubber. Here is the tutorial https://mega.nz/file/XqZX0TIR#_DtO2oa4aRP4bWtvxgKLj4QGhBpQ959cg5U3Yw4u1Cc or https://url.bee-link.cn/AzzB**
②Please take out one RAM and leave the other one in it to test if the RAM is defective or not.
③Please repeatedly press delete key as soon as you turn on the PC, go to BIOS. Please send us a picture of the Main page, we will check if you need to update the BIOS.
④Please change another power supply.
⑤Overheating. If your PC is overheating, please check if the fan spins. You can also turn off the turbo boost. Go to control panel —power option—change to High performance— change plan setting—advanced setting —processor power management— change both 100% to 99% , click save.
⑥Update graphics driver: Please uninstall the graphic driver in the device manager and install the new one. Here is the driver source :https://dr.bee-link.cn/index.php?dir= , click the item model , then you can find the related driver.