X1 Carbon no signs of life overnight

Laptop was working fine yesterday. Woke up and it's completely dead. No fan, no lights, no charging led. Tried 2 different chargers that worked fine previously. Tried a static discharge (2 hours), reset button, reseating connectors, nothing works. Was working perfectly fine the day before, no problems.

Overnight, the laptop was on and not plugged in.

I can barely hear a faint hum from the motherboard power management area when I plug in USB c.

I have the i7 7500u with 8gb ram.