750 Watts Power Supply provides 2x 6 Pin power cables. The Quadro series GPU requires 8 pin and 6 pin power connectors, so a 750 watts power supply will need a 6 to 8 pin conversion adapter.

In the sections below, the connection for each variant of GPU is explained.

GPU GV100 installation (8 pin) Needs 6 to 8 Pin Adapter
GPU RTX 6000 installation (8+6 pin) Needs 6 to 8 Pin Adapter
GPU P6000 installation (8 pin) Needs 6 to 8 Pin Adapter

HP 6 Pin to 8 Pin Power Supply Adapter

For GPUs which requires 8 Pins power cables, HP has certified adapter cable from 6 Pin to 8 Pin. So, this converter should be used with 750 Watts power supply.

Do not use any other brand adapters which has similar specification. Do not use SATA or Hard disk power cable to 8 pin converters as this may damage your GPU or power supply.