I should recommend that first of all you should check your all hardware like power supply, MOBO or processors issue. After it you should check your BIOS. I am confident that it's work.
Yes I am totally agree with Goossen that pfsense is very powerful interface. I am not but a friend of mine have a wonderful experience with that. I hope your problems have solved but this post help...
I think for graphic cards you should use form followings list.
Nvidia GeForce GTX 690, Nvidia GeForce GTX 680, AMD Radeon HD 7970, Nvidia GeForce GTX 670 AMD Radeon HD 7950 and the last one is AMD...
First I think you should update your drivers. There are also need to perform followings steps.
Hereafter, reboot the laptop and check the ping results for websites:
1. Press 'Windows' + R key,...