Hi Folks, My Dad has had a problem with his PC for the last 6 months, He built it himself about 2 years ago and used pretty good parts from Scan. Anyway the problem at 1st seemed to be the sound, It would work at times then the next day just be a load of crackling noise. He's literally tried everything. The problem seems to disappear when we plug in headphones but my Dad being 61 doesn't want to sit in the living room with headphones on. Last week he bought a new sound card yet the problem still persists. He plays the computer on a 60" Samsung TV with a HDMI cable connected, At 1st I thought this might be the problem. Iv'e had a look at drivers and rolling back windows etc but the same thing keeps happening, It was working fine last night after reinstalling all drivers, then today back to the cracking noise. Iv'e noticed the last few days when he loads a game up and the sound works the graphics are a good standard (Playing Shadow of War on High). When the game is loaded and the sound is distorted the graphics are on a super low setting and it just looks awful with rubbish FPS, This has led me to believe it could be a Motherboard problem. Any advice would be much appreciated. Thank you.