I am having a couple of issues with a WD Green 3TB hard drive I bought. The OS is Ubuntu 12.02. I tried gsmartcontrol and the drive looks fine, but when I ran badblocks it was a tragedy. I am thinking that there might be a power supply issue. I currently have a 350 W PSU, the mobo is a Zotac Z68 ITX Supreme with an Intel Core i3. Two fans on the mobo (one for the CPU, the other for the GPU) and a big 12cm fan to cool the case. I also have another HD 2.5" Fujitsu MHZ2160B on the same power cable.
Is 350 W enough? How can I check if my HD is getting enough power under load?