Can't run all 3 DP at same time strix 3080 oc

Cant connect all 3 DP at same time on strix 3080 010G V2
I came from a 3070 which had 2 DP and had to use a HDMI for third monitor. This is for sim racing so I use 3 monitors. All excited to Run 3 DP and get over the 120hz I was limited because of HDMI. If I plug in 3 DP 1 monitor wont detect signal. If I hook 1 monitor to HDMI, then it will detect and work all three monitors. I have tried different cables. I can switch DP ports and they all work as longs as 1 HDMI is hooked up. I don't get it. not cables, not one port. I am no better off then before I spend all this money. They are all dell 32dgf 1440 p monitors. Have people got all 3 DP ports to work on trip 1440? I've tried to uplug them and restart a few times, that doesn't work.
 
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