Help I have this gpu https://pcpartpicker.com/part/gigabyte-video-card-gvr927oc2gd but my psu https://pcpartpicker.com/part/antec-power-supply-bp500u only has one 6 pin connector and the gpu needs 2 8 pin connectors I can't afford another psu right any way I can use the 4 pin or some kind of adaptor