HP Slim 290-A0031 Desktop Computer, AMD A6 9225, 8GB Ram, 1TB 7200 RPM HDD, Win10 Home

To remove the side cover, first loosen the thumb screw at the rear of the cover that secures the cover to the chassis. Grasp the handle on the rear of the cover, and pull firmly to the rear before pulling up on the back of the cover. Remove the side cover from the unit. The side cover has several tabs on its side, and leading edges which fit into slots and under tabs of the front side edge of the chassis. To reattach the side cover, align the tabs on the cover over their corresponding slots on the PC. Slide the cover forward until the forward edge of the cover is flush against the front bezel. Tighten the thumbscrew at the rear of the side cover to secure the side cover to the PC. To remove a graphics card or other expansion card, if present in the unit, first remove the side cover. Remove the Torx 15 screw securing the expansion cards retaining bracket to the chassis. Lift the latch fo