Hi, I just bought an Antec 1000w HCP Platinum PSU. Everything works but the motherboard cable is really faulty. I thought the PSU was dead at first but the m/b cable needs to almost be pulled down with pressure for the power to register. I had to tie a twisty-tie and kind of yank down for power to stay on. Otherwise it would turn on and off as I moved the cabe. I can't push it in any further, it is already locked. I'm not sure if or where I could get replacement cables or which one will actually fit. Any help would be appreciated.