What is wrong with my pc???

Need-a-new-cpu

Reputable
Jan 6, 2016
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4,540
Earlier today I opened up my pc case, took out my network card and installed a new one. I then tried to boot my pc but it just turned itself off instantly, so I turned it on again to be greeted by what I assume is my bios ( it has been broken before as when i enter the Set up I just get a black screen with a diffrent style cursor to the normal Windows one) I get the splash screen then I can enter the boot menu and choose the boot device but whatever I choose I just get sent back to the black screen with the cursor ( again probably my bios setup menu) I have tried removing the network card, putting my old one back in I have checked all connections and they are fine I have also tried putting in the Windows install disk for Windows 10 but it just sends me to the black screen with the cursor (probably bios setup menu) again. Does anyone have any ideas to what my problem may be and how to fix it as I am super pissed off as a little wirless network card may have possibly cost me my pc.

Many thanks

My pc specs:
I7 6700k
Gigabyte k3 gaming motherboard
2x4gb + 2x8gb corsair vengance ram
Msi r9 390x 8g
Arctic blue 750w PSU
I have one 1tb hdd with Windows installed then a 2tb and another 3tb hdd installed.

All ideas/help will be greatly appreciated.