Compaq 164SX - Manual (Page 59)

Upgrading the AlphaPC 164SX 5–3
Increasing Microprocessor Speed
3. Align the DIMM so that the notch in the DIMM matches the key in the socket.
4. Firmly push the DIMM straight into the connector. Ensure that the DIMM snaps
into the plastic locking levers on both ends.
5. Restore power to the system.
5.3 Increasing Microprocessor Speed
This section describes how to complete the following actions to increase
microprocessor speed:
• Replace the Alpha 21164PC microprocessor with an Alpha chip that has a higher
speed rating.
• Reconfigure the clock divisor switches.
5.3.1 Preparatory Information
Caution: Static-Sensitive Component – Due to the sensitive nature of electronic
components to static electricity, anyone handling the microprocessor
must wear a properly grounded antistatic wriststrap. Use of antistatic
mats, ESD approved workstations, or exercising other good ESD prac-
tices is recommended.
An Alpha 21164PC microprocessor with a higher speed rating is available from your
local distributor. See Appendix A for information about supporting products.
When replacing the microprocessor chip, also replace the thermal conducting
GRAFOIL pad. See Appendix A for information about the parts kit, which includes
the heat sink, GRAFOIL pad, two hex nuts, heat-sink clips, 52-mm fan, and four
screws.
5.3.2 Required Tools
The following tools are required when replacing the microprocessor chip:
A TS30 manual nut/torque driver (or equivalent) with the following attachments is
required to affix the heat sink and fan to the microprocessor’s IPGA package:
• 1/4-inch hex bit
• 3/8-inch socket with 1/4-inch hex drive
• #2 Phillips-head screwdriver bit