i am trying to replace the fans in my desktop with some new UV blue fans that i bought from Xoxide.com. wen replacing the old ones with the new ones, i used the same power hookups, to my knowledge. wen i turned my computer back on it said some hardware error and that NTLDR was missing. wat does tat mean? im pretty sure i have my power hookups right. is there a tutorial online or a help website to show the right way?