Hi guys, recently i have built my first computer. Here is the spec: AMD Ryzen 3 3200G, Asus B450a ii, 256gb ssd patriot... So today i went to bios and found out the ez system tuning asus optimal. I set from normal to optimal. My PC ran faster but i felt it was like a little too hot(around 80 degree Celcius) when i played fifa so i decided to turn back to normal. This evening i was working on my computer very well and suddenly, my compter lagged. I restart my computer but the screen stucked at bios. It only shows ASUS logo and under the logo showed: Press f2 or del to go to bios. So i went to bios, checked everything. Everything seemed ok, but after that my pc keeps showing " reboot and select proper boot device ". So the problem is: My computer still detects my SSD in BIOS, but i cant boot to window, my pc screen keeps showing "reboot and select proper boot device". I really need you guys helps because i have a big test online this week. Thanks for reading.