nate_d099 :
So you moved the original HDD with the OS installed on it to the caddy correct?
If so, you may need to go into the bios and change the default boot device.
sorry maybe i dd not explain right... if the laptop is plugged on power adapter, it is fine, it works fine. my problem is wen i try to start it without the power adapter, that is with only the battery. it start and load the windows bt then around that time when the windows loding screen is there it jst turns off.