I brought some 8GB (2x4GB) RAM which was compatable with my machine but after first putting it in i dont think it istalled as my pc still said 4GB any way i removed it and put it back again and when i turned my pc back on it started beeping 1 with 2 short beeps which meant there was no memory present. However i did not realize this at the time and thought i had broke my pc so i pressed the BIOS button on the back of the PC and think i may have broke my PC! im really getting upset about it. I have put the ram back in correclty and im not getting any more sounds but I'm just not getting any picture, it says no signal but im also not getting any power to my keyboard? i dont know if its because i pressed that BIOS button. What should i do? can someone please help me?