On 2015-08-10 18:34, David C. Rankin wrote:
When the POST fails, they are stuck green, green, red, red, which according to the manual indicates "Initializing Hard Drive Controller" (makes sense). I have inserted spare drives into the empty bays to confirm that the PSU is providing power (it is). The PSU is a fairly reliable HEC Zephyr 750, so it looks to be powering the drives fine. However, the only thing common to all drives, aside from the controller, is power. If it is a power issue, then it has to be a dirty power or partial power that allows the disk to spin, but may be preventing it from properly powering all its circuitry to respond to the drive initialization.
I think you should try with another PSU. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)