HP Pavilion Slimline s3150.uk Very strange problem
 

Hi Guys, I have just joined this forum so I am a newbie to all of this so please bare with me on this. I am not sure iof this is a graphics or motherboard issue. I have a very strange issue with a customer of mines PC, its a HP Pavilion Slimline s3150.uk. which will not boot. When you turn...