The spare parts of my PSU cable which go into the GPU are touching the case and buzzing, is it ok to gently bend them away ? I know it's not the fans or the GPU as it disappears when the case is opened.
I keep bending the cables way but then half an hour later the buzzing starts again
Different models will have more power connectors to allow more power to the card. Sometimes this is the case even within the same model range as some cards might be more overclocked and use more power as a result.