Drobo 5D only powers up if I hold power button down for a Long Time

I have to hold down the power button on the back of the Drobo 5D for at least 3 minutes while the Drobo boots up. Sometimes even longer than three minutes. If I take my finger off the power button it shuts down. But if I wait long enough it has enough juice to run.
Power supply is green light. Anyone had this problem? Or thoughts on what it is?

Also, if I take the mSATA out of the bottom bay it will boot up. But if I don’t it will not boot up. Obviously a problem there and I asked support for a list of verified mSATAs. But still, even if the mSATA is out I still have to hold the power button in for more than a minute.
Thanks for your time.