What to do if my power supply does not have the 6 pin PCIe plug for connecting to my X1950 XT ?
You are advised to use power supply that have the 6 pin PCIe connector for connecting to X1950XT. Power adapter cable that converts the 4 pin power connector from the power supply to the 6 pin PCIe plug are not recommended. Some power supply without the 6 pin PCIe plug may not have enough current for the 12V rail and the card may behave abnormally especially during 3D gaming. This may include screen corruption, system hang etc. X1950XT draws a lot of power from 12V. A single card will require 450-Watt power supply or greater with 30 Amps on 12 volt rail recommended (assumes fully loaded system) and for CrossFireTM: 550 watt power supply or greater, 38 Amps on 12 volt rail.