On Dec 26, 9:58*am, Bryce wrote:
Possibly marginal available power at boot? *You didn't say how many hard
drives are connected: try with only one.

If one or four hard drives made a difference, then the power supply
is grossly undersized even with zero drives. And the multimeter would
have made that obvious even with zero drives connected.

But again, 'it might be hard drives' is another perfect example of
shotgunning - this time without basic knowledge of how computer power
supplies work. Disk drives do not even make a list of responsible
speculation - which would have been obvious had that reply come with
some numbers such as the power consumption by a disk drive. No
numbers; therefore wild and not useful speculation.