Specifications

4.6 Replacing the CPU Module
The following steps describe the removal procedure for the CPU module. Refer
to Figure 4–3 and Table 4–4 during the procedure.
1. Shut down the system and unplug the power cord (Section 4.4).
2. Remove the cabinet top cover, left side panel, and card cage cover using the
procedures in Section 4.5.
3. Remove the screw on the left end of the CPU module retaining bar and
slide the bar out of the slot on the right side. Save this screw.
4. Pull the CPU module from its slot and slide the module out of the card
cage.
5. Place the module on an antistatic package, antistatic foam pad, or a
grounded workstation surface.
6. Remove the replacement CPU module from its antistatic package and
place it on an an antistatic package, antistatic foam pad, or a grounded
workstation surface.
7. If you are replacing a 25 MHz (SX25) or 33 MHz (DX33) CPU module and
an optional cache card is installed on the failed module:
a. Remove the cache card and install it on the replacement CPU module
using the procedure in Section 4.7.
b. Ensure that the cache size jumper (J3) on the replacement module
matches the position of the jumper on the failed module. Jumper J2 on
the module is not used. Refer to Figure 4–4 and Table 4–5. Table 4–6
describes the jumper J3 positions.
8. Place the failed CPU module in an antistatic package.
Reverse the above procedure to install the replacement CPU module.
FRU Removal and Replacement 4–9