Best to contact support. And if power button isn’t light up check bot Keyboard connections if they are seated correctly and if there is no short. My first keyboard had a short and melted it’s connector. And on the way killed the rest of the mainboard too.
Also try to record the LED flashing. It’s a self test and the first 10 or so are components tested by the bios.
This is for the 12th gen but the pattern is the same on AMD.
Depends on the support case you got. If it’s technical you have basically 24/7. I am in Germany but had once a hard drive failure in a server at 1am contacted technical support and it took about 30 minutes overall and the new drive was resilvering and the server back online. Takes a bit as the NOC needs to go to the data center and so on.