Asus P2-99B P2-99B User Manual - Page 21

III. HARDWARE SETUP 3. Central Processing Unit (CPU) NOTE: The following pictures are provided for reference purposes only. The appearance 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 packaged in a Single Edge Contact Cartridge (SECC2), a Pentium® II processor packaged in SECC/SECC2, or a Celeron™ processor packaged in a Single Edge Processor 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. H/W SETUP CPU 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. Universal Retention Mechanism Your motherboard comes preinstalled with a Universal Retention Mechanism (URM). The URM supports Pentium III / II and Celeron processors. Heatsinks Universal Retention Mechanism (URM) 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. ASUS P2-99B User's Manual 21