Curious situation about PCIe x1 connectors where you have two but only one can be connected at a time
Curious situation about PCIe x1 connectors where you have two but only one can be connected at a time
You're asking about the power supply of your MSI MPG X570 Gaming Plus. It has two PCIe x16 slots and three x1 slots, but only two can be active at once. You're using it for a server with a NanoVPN PCIe card, drawing power solely from the active x1 slot. You're wondering if the disabled x1 slot still provides power for other expansion cards. Most likely, yes—it would still receive power, as the board's design accounts for this configuration. Testing scenarios like this are common among builders and server users.
The power connectors are simply present and linked, with no way to shut off a slot's power. That means yes, you can.