I got mine from ewiz and is also U7150xxxx. I might be in the clear though. I'm using my different sticks of gkx in the blue slots now instead of white, and while these sticks are requiring 2.2v which I'm giving them, I seem to be having the longest streak of stability ever. I'm on large going on 12 hours now. This beats my old record of large/blend for 6.5hrs by about double. I hope I'm in the clear and that by tomorrow, when I wake up, it'll still be going strong . Wooo