Hey Guys im having a problem. I bought a new GFX card at the store so I took it home and put it in, it diddnt work. I called the company NVIDIA and they told me that my mother board diddnt have enough watts. So I walked my happy **** down to the store again to buy a 500w power supply. I put it in and it was all in proper like, I double and tripple checked it. Then I go to turn on my computer (just bought it in jan) and instead of booting it goes to a black screen that says at the very end DISK BOOT FAILURE INSERT SYSTEM DISK AND PRESS ENTER. I was told a few different ways to solve this and none of them worked. First I pushed F8 when I was booting it. All it does is make a clicking sound. I also tried to put in Windows but it says that I do not have enought Cache or somthing. Any help please? Thanks in advance!