Question Flickering Screen (powering on and off)

[tb4b]

I've got This HP 27Q 27 inches LED 2K Quad HD 1440p QHQ Monitor - 3FV909AA_R and the power randomly turns on and off and this can persist for several minutes. However, at times won't happen for days. I replaced the display cable and the power cable and I've tried a different plug as well. I really don't want to send it back so if anyone knows anything please let me know.