Intel LGA775 - Manual (Page 10)

INSTALLATIONS
Installing the CPU
The 2801550 motherboard supports a LGA 775 processor socket for
Intel® Pentium® 4 processors.
The LGA 775 processor socket comes with a lever to secure the
processor. Refer to the pictures below, from left to right, on how to place
the processor into the CPU socket. Please note that the cover of the
LGA775 socket must always be installed during transport to avoid
damage to the socket.
ATX Power Installation
Power is provided to the 2801550 motherboard with the ATX1 standard
24-pin ATX power supply connector and J5 ATX 12V power connector.
These two power connectors should be utilized for the motherboard to
function.
6 2801550 User’s Manual