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ASUS P2-99B User’s Manual 21
3. Central Processing Unit (CPU)
NOTE: The following pictures are provided for reference purposes only. The ap-
pearance of your retention mechanism and fan may be different from the following
examples.
Your motherboard provides a Slot 1 connector for a Pentium
®
III processor pack-
aged in a Single Edge Contact Cartridge (SECC2), a Pentium
®
II processor pack-
aged in SECC/SECC2, or a Celeron™ processor packaged in a Single Edge Proces-
sor Package (SEPP). An ASUS S370 CPU card can allow Socket 370 processors to
be used on any ASUS motherboard with the Slot 1 connector (See ASUS S370 CPU
Card in APPENDIX for instructions on using this card).
III. HARDWARE SETUP
CPU
III. H/W SETUP
Heatsinks
The recommended heatsinks (see section on recommended heatsinks for Pentium
III / II processors for more information) for the boxed Pentium III / II and Celeron
processors are those with three-pin fans that can be connected to the fan connectors
on the motherboard.
WARNING! Be sure that there is sufficient air circulation across the processor’s
heatsink by regularly checking that your CPU fan is working. Without sufficient
circulation, the processor could overheat and damage both the processor and the
motherboard. You may install an auxiliary chassis fan, if necessary.
Pentium II processor packaged in an SECC with
heatsink and fan (top view)
Pentium III (in an SECC2) with heatsink and fan
NOTE: The SEPP fan (for Celeron processors) is
similar to SECC2 fan except that the clamping
design is different.
Your motherboard comes preinstalled
with a Universal Retention Mechanism
(URM). The URM supports Pentium III /
II and Celeron processors.
Universal Retention Mechanism (URM)
Universal Retention Mechanism