MSI MS-7666 User Manual page 27

ATX 6-pin Power Connector: JPWR4
This connector is used to provide power to the graphics card.
Important
Make sure that all the connectors are connected to proper ATX power supplies to
•
ensure stable operation of the mainboard.
• Power supply of 450 watts (and above) is highly recommended for system stability.
MS-7666 MS-7666
2-11