Rl Cube5Â years ago000I bought a power supply that has 400W and the graphics card says you need 400W can I still use it or do I have to buy another power supply?Show in original language (German)alf9915Â years ago000 Helpful answerNot compulsory I also have it in a system with a 400w power supply unit and it runs great đShow in original language (German)Comment1 comment