I have had problem with a dm500hd v2 for a longer time. If i touch the powercord it is sometimes almoast impossible to make the box boot. Today I opened it up and see that all 5 led on the motherboard is on. Suddenly after 100 times on and off clicking it changes from 5 led to only 2 led on and now the box works. If i then twist the powercord a little bit it starts from 5 led again and goes to 2 led, but sometimes the 5 leds are a little bit darker and then nothing works. Is it the powercord in the box that is the problem?