Exact same issue. Same software, firmware, hardware and issue. This thread has had over 1.3K views.... and the only remedy offered is 'check the power supply is plugged into the wall....".
Um, yeah, checked that. I'm an electronic technician and I have never had a powerboard cause a voltage or amp issue in step down transformer power supply, but I humoured the advice. Faulty manufacturer supplied power supplies- plenty. Power boards inducing faults in power supplies, never. They either work or they don't. Yes, Im using the power adapter supplied because it doesn't make much sense to go buy an separate 19V power supply when it came with one..
In terms of what hard drive is fitted... um, what the manufacturer sent it with. I haven't opened the device to check because it'll no doubt lead to another question "have you opened and messed with the device".
I encourage any one else with this issue to post so we can attempt to have this defective product given the attention it needs in either a firmware, software or hardware (power supply, hard drive or mainboard) fix.
Anyone else find it disconcerting there is no reference to this SKU model on the official site?