SOLTEK SL-85LIR3 Manual page 3

1-3 Pentium 4 CPU Installation
This mainboard is built with CPU Socket 478 (with 478 pins) supporting
the Intel Pentium 4 CPU:
• Follow the steps described in this section to install the 478-pin Pentium
4 CPU into the on board Socket 478.
• After installation of Pentium 4 CPU, you must also install the specific
Pentium 4 CPU fan designed in tandom with this CPU. This CPU Fan
installation is described in the next section.
1. First pull sideways the lever of
Socket 478, and then turn it up
90 0 so as to raise the upper layer
of the socket from the lower
platform.
2. Configure Pin 1 of CPU to Pin 1
of the Socket, just as the way
shown in the diagram on the
right. Adjust the position of CPU
until you can feel all CPU pins
get into the socket with ease.
3. Make sure that all CPU pins have
completely entered the socket
and then lower down the lever
to lock up CPU to socket.
Chapter 1 Specification
Pin 1
7
Pin 1
Pin 1