Digital Equipment STARION 20 Series, Service Maintenance Manual

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Digital STARION 9xx & 20xx PC Service Procedures
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Installation Procedures
Installing a Higher Performance CPU
The Starion main logic board is equipped with a Pentium processor installed in a ZIF socket (Socket 5
type) and a voltage regulator that supports 3.3V dc Pentium Processors.
To install a higher-performance CPU:
1) Turn off the computer, disconnect external devices, ac power and monitor power.
2) Unlock and remove cover.
3) Lift up on lever to release old CPU.
4) Remove old CPU.
5) Install new CPU.
6) Make sure pin 1 on CPU is aligned with pin 1 on ZIF socket (A).
7) Return release lever to its original position and then set all appropriate CPU jumpers. Refer to “Main
Logic Board Jumper Settings”.
8) Replace and lock cover and connect external devices and restore power.
Figure 3 - 13 Installing a
Higher Performance CPU
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