My PC has arrived. What should I check before starting it up for the first time? Three things should be checked before starting it up for the first time:The internal transport lock,the graphics card's power connector,the mechanical support for the graphics card.It is particularly worth taking a close look after removing the transport lock, as the transport lock may get stuck when being removed. Procedure:Completely remove the transport lock from the foam.Visual inspection of the installed graphics card:Is the graphics card firmly seated in the socket?Is it sitting securely on the pre-mounted GPU mounting bracket?Is the graphics card's power connector securely connected?Should any uncertainties arise during unpacking and the visual inspection, we recommend taking photographs for documentation and contacting our support team.