Just built a PC, plugged everything in, nothing, apart from my mouse quickly flashing from blue to red to nothing. That repeats, pls help, I have no idea, what is going on.
When you built it you became your own tech support…aren't you qualified?
But seriously, check your front panel to motherboard connections, especially the power switch connectors. Also, make sure that the 20/24 pin main and the 4 or 8 pin cpu power cables are fully seated. Is the power supply switched on?
The mouse has power
If your pour water on it then it will create a shock so everything is being powered.
Did you use an antistatic mat and wrist band? If not, you have probably fried the components.
and now you know why amateurs shouldn't build PC's good luck