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Increasing Microprocessor Speed
3. Place the GRAFOIL pad on the gold-plated slug surface and align it with
b. Attach the microprocessor heat sink. The heat-sink material is clear anod-
ized, hot-water-sealed, 6061-T6 aluminum. The nut material is 2011-T3 alu-
minum (this grade is critical). Perform the following steps to attach the heat
sink:
1. Observe antistatic precautions.
2. Align the heat-sink holes with the threaded studs on the ceramic package.
3. Handle the heat sink by the edges and lower it onto the chip package,
4. Set a calibrated torque driver to 20 in-lbs, ±2 in-lbs (2.3 Nm, ±0.2 Nm).
5. Insert a nut into the 7/16-inch socket, place on one of the studs, and
6. If the sink/chip/fan clip is used, properly install it by positioning it over
c. Attach the heat-sink fan assembly:
1. Place the fan assembly on top of the heat sink, aligning the fan mounting
2. Place the fan guard on top of the fan. Orient the guard so that the corner
3. Secure the fan and fan guard to the heat sink with four 6-32
4. Plug the fan power/sensor cable into connector J18.
Important:
Memory and Microprocessor Configuration
5–6
the threaded studs.
taking care not to damage the stud threads.
The torque driver should have a mounted 7/16-inch socket.
tighten to the specified torque. Repeat for the second nut.
the assembly and hooking its ends around the ZIF socket retainers.
holes with the corresponding threaded heat-sink holes. Align the fan so
that the fan power/sensor wires exit the fan closest to connector J18 (see
Figure 2–1). Fan airflow must be directed into the heat sink (fan label
facing down toward the heat sink).
mounting areas lay flush against the heat sink.
screws.
When installing the microprocessor, you must change the frequency of
its clock output by setting the system clock divisor jumpers, as described
in Section 3.1.
0.875-inch
X
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