I got one of the same models picked from trash. i7 version. Tried to power on, but it doesn't boot up. Black screen with 8 times beeping sound. Ram and storage are there. Cmos battery is at 3v. Power led is lit. Most likely, the motherboard shorted. I don't have the skills to repair the motherboard. Most I can do is to replace the motherboard. Aliexpress costs around SGD $60.