x550

hello friends i bought a new asus k550vm (known as asus x550vm) but when use gpu system freeze some times so badly and just i can shut it down and some times that happen when system boot up windows 10 64bit and fans gets crazy... mention it not system heating problem cpu : 6700 hq vga nvidia...

i have a asus x550SA with celeron N3060 i want to upgrade the cpu and i might need to put an extra gpu at the place of the CD\dvd driver can i do that and do i have any bios or some thing else