Basically this happened about two weeks back, while I was playing a non graphic intensive game : League of Legends my screen shut off, my mic worked for the next 10 seconds and after that the last audio was played into a loop over and over again and I had to force restart my PC, I went to the reliability history and it was a BCCode 117. But today the same thing happened, my screen went blank, I couldn't turn it back on, my graphics card fan wasn't working, but every other fan was on, and there was an audio playback loop. I restarted the PC but when I opened up the reliability history there was no error whatsoever and now it doesn't just happen when I play my games but it happens even when I just leave my screen on. My graphics card would just die.
Thanks for the help
EDIT : My specs for my PC
CPU - AMD Athlon X4 750K
GPU - Sapphire HD 7750 1GB GDDR5
Motherboard - MSI FM2-A75MA-E35
RAM - Corsair PC3 12800
HDD - Western Digital Caviar Blue 1TB
Case - Corsair Carbide Series 200r
PSU - Corsair Builder Series CX500M
Optical Drive - Samsung SH224
Thanks for the help
EDIT : My specs for my PC
CPU - AMD Athlon X4 750K
GPU - Sapphire HD 7750 1GB GDDR5
Motherboard - MSI FM2-A75MA-E35
RAM - Corsair PC3 12800
HDD - Western Digital Caviar Blue 1TB
Case - Corsair Carbide Series 200r
PSU - Corsair Builder Series CX500M
Optical Drive - Samsung SH224