SCasarella, welcome to the forum.
According to what I have read, the Training error can be caused by the memory seating, memory itself or memory slot. I suggest reseating the memory module to see if that helps. If not, you may want to contact HP Customer Support for help. You might try removing the listed module to see if the computer will boot without it.
Please click the Thumbs up + button if I have helped you and click Accept as Solution if your problem is solved.