Update:
It's a nVentiv Prometia Mach II (2-3 years old) w. soc. A kit and I can buy it for $157.
But here what seller write:
My Mach 2 ligth in all the diodes at once. I have refitted it all twice. So it can't be that. It does not turn my computer on. It writes in the display that it boots but nothing else happen.
So it's stupid to buy it?