Disappointed, back to Blockchain Aug 11 driver. Mem Oc does not work, not in Wattmann/Claymore(system freeze), overdriventool, Afterburner beta 19 see's nothing.
Same here, cannot seem to overclock the memory, tried Afterburner, OverdriveNTool and AMD's own WattMan, memory clock speed reverts back to the default after applying the new value!