87 watt is too much, things will be easier if you install hiveOS and use popular presets available in the OC tweak settings or lower core Voltage yourself, 55watt is possible on that card
Thanks,
I was testing my 2 pieces in windows and had no way lower voltages yet.
I have several combos (mb+cpu+memory+ssd+psu) lying around which can take two cards so I did not use hiveos yet.
I will try hiveos on these combos (with USB stick). I think even with extra overhead / card (mb+cpu+memory takes about 35W) it makes sense as only investment needed is cards.