Question Issue with computer

[matville]

Hi, Im not sure where this should be but i am having trouble with my computer.

It was working fine until the other day, then it crashed and would not start windows 10.
symptoms i am having:

green blocks on start up
lines through screen
when the network cable is plugged in the internet doesnt work on the network (network protocols missing?)
i tried resetting computer, didnt work
reinstalled windows but will only work if i keep the usb in, if i take it out windows wont load
tried startup repair, didnt work

does anyone know what happened? is it the motherboard? harddrive? ram? graphics card?

strider 1000w power supply
asrock fatality z97 killer motherboard
nvidia windforce graphics card
ssd hard drive

(sorry cant give much more detail as i cant get into windows)
Thank you for you time

 

[Pacharnishant0754]

First try to clean ram stick via HB pensil eraser, after this you can do reinstall windows and format c drive to reinstall fresh windows.

 

[Vic 40]

Take the Nvidia gpu out and try with the motyherboards video output.

 

[matville]

Thank you pach and Vic, it seems that it was my gpu, removed gpu and is working fine, I presume I need a new you now?

 

[Vic 40]

Unless you have warranty yes. Maybe can take the cooler off and clean it plus put new paste on it. See if that helps.
https://www.google.nl/url?sa=t&rct=...=c-qY59VrVS4&usg=AOvVaw3ucUW-_NMBrU6x49KwMQSj
about at min. 3.00 he starts with the gpu. Might well not work,but it might be worth it depending on what you have.