Can anybody help me plzz. I got alienware x51 r2 with 16gb ram, i5-4440, gtx660. I tried to upgrade my cpu to a i7-4790k since it was just laying around here. It boots but just hangs on windows 7 splash screen. I think i got bios updated. I looked around web some ppl say they got it running in theres but i messaged them an they never return messages lol. I know here i will get a quick response. Can anybody help me or get it to work. Thanks for anyhelp.