Can VGA be used for direct display connection of a dedicated graphics card?

The VGA interface can be directly connected to the discrete graphics card. Here are the relevant instructions regarding the connection of the VGA interface to the discrete graphics card:

Motherboard VGA interface design: In most cases, the VGA interface on the motherboard is mainly designed for the discrete graphics card. When the computer is powered on, the motherboard detects the presence of the discrete graphics card and automatically shuts down the integrated graphics card to ensure that the discrete graphics card runs first.
Discrete graphics card connection: Through appropriate settings and connections, the VGA interface can be directly connected to the discrete graphics card to achieve direct discrete graphics card connection.
Special cases: Although in most cases the motherboard automatically selects the discrete graphics card, some motherboards provide dedicated graphics card option settings that allow users to choose to turn off the discrete graphics card and enable the integrated graphics card instead. However, this does not affect the ability of the VGA interface to connect to the discrete graphics card; it merely provides an alternative option to enable the integrated graphics card.
Using VGA adapters: In some cases, if the discrete graphics card does not have a direct VGA interface, a VGA adapter can be purchased to convert the signal of the discrete graphics card into VGA signal, thus achieving connection with the motherboard. However, it is necessary to pay attention to the compatibility and performance of the adapter to ensure the best display effect.
In conclusion, the VGA interface can support direct discrete graphics card connection, and in practical applications, through appropriate settings and connections, the connection requirements of the discrete graphics card can be met.