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ASUS P2L97A User’s Manual 17
III. INSTALLATION
3. Central Processing Unit (CPU)
The following items should have been included with your motherboard:
Pentium II Retention
Mechanism
Lock Holes
Captive Nut
Attach Mount Bridges
(Factory Installed)
Heatsink Support Base/Top Bar
(for Passive Heatsink)
Top Bar
Base
Posts
Pin
The following items must be purchased separately from ASUS or a third party vendor:
AAVID Heatsink
Elan Vital Heatsink
Pentium II Processor Passive Heatsink
Heatsink bottom Groove
for the Support Top Bar
Larger Fin should
be on the bottom.
The heatsinks shown are only recommendations. Check with your vendor for other
compatible heatsinks if you wish. The procedures shown in this manual are for in-
stalling the AAVID heatsink with fan. The procedures for installing the Elan Vital
heatsink with fan is also similar as that for the AAVID heatsink. The Elan Vital heatsink,
however, comes with a lever to clamp the heatsink into the SEC cartridge. Mount the
heatsink in the orientation shown then flip the lever from “Unlock” to “Lock.”
WARNING! Be sure that sufficient air circulation is available across the
processor’s heatsink by regularly checking that your CPU fan is working. With-
out sufficient circulation, the processor could overheat and damage both the pro-
cessor and the motherboard. You may install an auxiliary fan, if necessary.
Intel Pentium II Processor in an SEC Cartridge
(233–333MHz 256/512KB L2 Cache)
CPU
III. INSTALLATION