Answer to "CPU temperature too high"CPU is the backbone of your computer so you need to check the resources for giving the good shape of your PC. So try to maintain the normal range of CPU between 45 degrees to 50 degrees C . And you are playing games than range could be between 70 - 80 degrees Celsius. For checking the computer temperature you can use trustable software. There are so many software available in market for monitor CPU temperature.
Answer to "iPhone SE won't turn on"There is some technical issue in your battery so go for the external power supply option. Or press the Volume up button followed by the Volume down button and then quickly press and hold the Side button until you see the Apple logo to force restart your iPhone SE
Answer to "Out of date or missing drivers"Junk files and outdated or missing drivers are those key point which decrease your productivity and system performance. So it would be great for your pc to update your drivers and boost PC speed.