flynnjs

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  1. Looking at the data sheet further, it says the device can be run in 1.5v compatibility mode and therefore shouldn't be a problem. Sorry for my own misunderstanding.
  2. Hi, I've just received two of these, both marked on the silk screen as Rev F. I was looking at the Rev E.0 schematic which seems to show the DDR3 device, IC23, as a MT41K512M8RH (a 1.35v DDR3L device) being fed from IC36, a 1.5v power supply. I checked my board and the memory IC23 is marked "D9QBJ" which according to the Micron website agrees with the part shown on the schematic, is an "RH" 1.35v device. I also checked the voltage test point next to IC36 and that rail is definitely 1.5v. I think there is a problem that the supply to this memory is above the above the maximum operating voltage in table 21 of the Micron datasheet. I would appreciate it if someone from Digilent could comment please. regards, Jason