i got serious problem with claymore while digging ZEC.

Failed to set new effective memory clock for GPU #0 (17.7.2)

i did basic step to modify bios, unfortunately it appears i received micron memories. anyways whatever configuration of the parameters below i use (that is with or without) error remains.

-colors 1 -i 8 -r 0 -tstop 85 -tt 65 -fanmin 60 -fanmax 100 -cclock 1250 -mclock 2200 -cvddc 1150 -mvddc 1350

however gpu-z is showing that memory clock and core clock are set. my efficiency is ~320H/s which is exactly what I wanted. but shall I be afraid of this error? its kinda annoying. would much appreciate your help and advise.

win10 64x
latest crimson drivers blockchain version.