8
2-7-2
The mainboard also provides a 370-pin ZIF Socket 370. The CPU on mainboard must
have a fan attached to prevent overheating.
To install a CPU, first turn off your system and remove its cover. Locate the ZIF Socket and
open it by first pulling the lever sideways away from the socket then upwards to a 90-degree
right angle. Insert the CPU with the white dot as your guide. The white dot should point towards
the end of the level. The CPU has a corner pin for three of the four corners, the CPU will only fit
in the one orientation as shown as follow. With the added weight of the CPU fan, no force is
required to insert the CPU. Once completely inserted, hold down on the fan and close the
Socket’s lever.
IMPORTANT: You can setting the CPU ratio and Host Frequency in the BIOS setup on page
18
COM
2
CPU ZIF Socket 370
Lock
So
ck
et
3
70
Blank
Lever
White Dot
So
ck
et
3
70
CPU
2-7-3
Intel
®
Pentium
®
III Processor (256K) in the FC-PGA form factor: Mechanical Features
The FC-PGA package has the processor’s silicon die directly mounted to a pinned interposer substrate.
The pin grid array is partially populated and there may be surface mount components in the unpopulated
central area of the pin field.
Intel
®
Pentium
®
III Processor in the FC-PGA form factor: Mechanical Features
Substrate
Flip Chip Die
Pins
Fillet Epoxy
(Not to scale)
Flip-Chip Si Core
C4 Solder bumps
Surface mounted pins
Fillet Epoxy
(Not to scale)
Multi-layer substrate
