Can't boot up and can't login into diagnostic mode

Richardyu

Model: SEI
SN: 1235U2CG20033
SEI12-A-16500VK0W64PRO

tuiguang6

Hello there,
Don't worry, the PC has one-year warranty. Please send us a picture of SN on the bottom of the PC and a picture of the purchase record.

Here are some potential solutions: First,please unplug the power supply and HDMI cable. Please press the pinhole of "CLR CMOS" with a pin for about 10 seconds. Ten minutes later, plug the power supply and HDMI cable, turn on the PC again. Please wait about one or two minutes, 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 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://mega.nz/file/XqZX0TIR#_D ... hBpQ959cg5U3Yw4u1Cc or https://mega.nz/file/7nwDmCaL#Uy ... P9gt2Br3xyCG1SCdbrA

③ 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.

④Please check if the fan spins?

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.

Hope it can help you!