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2.3 Installation procedures
2.3.1 Processors (J16, J19, J17 and J20)
The motherboard supports single or dual Pentium ® II processor. If you are installing two
processors, the following values must be identical for both processors:
L2 cache size and type (ECC or non-ECC)
Operating voltages
Bus and core frequencies
The processor’s VID pins automatically program the voltage regulator on the motherboard to the
required processor voltage. The motherboard currently supports processors that run internally
from 233 MHz to 333 MHz.
The Pentium
®
II processor is packaged in a Single Edged Contact (S.E.C.) cartridge. The
cartridge includes the processor core, second-level cache, thermal plate and back cover. The
processor connects to the motherboard through the Slot 1 connector, a 242-pin edge connector.
When mounted in a Slot 1 connector, the processor is secured by a retention mechanism attached
to the motherboard.
First, screw the main body of Slot 1 retention mechanism to the motherboard then insert the
processor cartridge along the retention mechanism in vertical direction. A “click” sound will be
heard while the processor is located right in position. Finally, attach the cooler’s power cable to
the processor fan header on the motherboard.
Signal of J17/J20 header (processor fan header)
Pin 1
Ground
Pin 2
+12 V
Pin 3
SENSE
Note 1. Processor cooler is always required to prevent over-heat.
Note 2. The second-level cache is located on the substrate of the S.E.C. cartridge. The cache size
and cacheable memory size are dependent on the processor used.
Note 3. Processor can be installed in either of the two Slot 1 sockets without any order restriction.
