Check the computer/motherboard manufacturer's website for your specific model. In addition to the good advice above (drive power down settings in power management, drivers, as well as specific ACHI settings), I would make sure you have the newest BIOS for your system. If this is incorrect, then please correct me, but if both drives are encountering the same problem, then it isn't specifically a hard drive problem and the problem lies elsewhere. If I read and understood your original post correctly, you are having these symptoms on both the original hard drive and the cloned drive that you left in after cloning it.
