Hi,   Unfortunately, there are no validated documentation that R730XD will support RTX3070 or any GPU models. I can't inform you that it will may or may not work on R730XD.    Let me know if you have other issues.
Hi Sir, I have purchased RTX3070 Cards will it support DELL PowerEdge R730 / xd Server. Please help with this.
GPU Upgrade on DELL PowerEdge R730 / xd Server