The System tab displays the current DirectX version, the computer's hostname, the operating system's version, information on the system BIOS, and other data. The DirectX Files tab displays information about the versions of specific DirectX system file, which are mostly portable executables or dynamic-link libraries (DLLs).
DxDiag displays information about the current display settings and the video hardware on the Display tab. If the computer has multi-monitor setup, then DxDiag will display a separate tab for each monitor. This tab can disable DirectDraw, Direct3D, and/or AGP Texture Acceleration for troubleshooting purposes. If the installed display driver has passed Windows Hardware Quality Labs testing, DxDiag will display this result on the right side of the window.
The Music tab displays information about the computer's MIDI settings, and lists different music-related software and hardware on your computer. The Input tab, displays information about input devices installed in the computer such as keyboards and mice. It will also attempt to detect problems with these devices. DxDiag displays information about the installed DirectPlayService Provider. It is possible to set up a very basic chat room using the network diagnostic and inputting various IP addresses.