Intel IB850 - Manual (Page 12)

INSTALLATIONS
8 IB850 User’s Manual
Installing the CPU
The IB850 CPU card supports a Socket 478 processor socket for Intel
Pentium 4 processors.
The Socket 478 processor socket comes with a lever to secure the
processor. Raise this lever to about a 90
°
angle to allow the insertion of the
processor. Place the processor into the socket by making sure the notch
on the corner of the CPU corresponds with the notch on the inside of the
socket. Once the processor has slide into the socket, return the lever to
the lock position. Refer to the figures below.
After you have installed the processor into the socket, check if the
jumpers for the CPU type and speed are correct.
NOTE: Ensure that the CPU heat sink and the CPU top surface are in
total contact to avoid CPU overheating problem that would
cause your system to hang or be unstable.