Clientpro 565 will not start

no screen what so ever. everything is hooked up but it is as if there is no power. no screen what so ever. everything is hooked up but it is as if there is no power.

I dont know if you can do some tech checks.I can give you some clues.Check the PSU or power unit.For this you need to open the PC and check if the PSU is working and the fan is moving.If not cahange it,If yes check on the back of the PC any small lights.Write down wich are on an post.If nay lights on then check the RAM sticks.Take one out and power on.If nothing works the your RAM is bad so change it and power on.If nothing then the MOBO wich is very difficult to test if you dont have another.Do you hear any beeps at startup?Post back. I dont know if you can do some tech checks.I can give you some clues.Check the PSU or power unit.For this you need to open the PC and check if the PSU is working and the fan is moving.If not cahange it,If yes check on the back of the PC any small lights.Write down wich are on an post.If nay lights on then check the RAM sticks.Take one out and power on.If nothing works the your RAM is bad so change it and power on.If nothing then the MOBO wich is very difficult to test if you dont have another.Do you hear any beeps at startup?Post back.