Compaq Compaq 486, Руководство по техническому обслуживанию и ремонту

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3. Using a Torx T-15 screwdriver, remove three screws securing the power
supply to the I/O board (Figure 5-13).
4. Pull out the power supply with the switch bezel attached (Figure 5-13).
5. Remove the switch bezel from the power supply (Figure 5-13).
To replace the power supply, reverse the steps in the above illustration.
Chapter 5.10 Fan Assembly
To remove the fan assembly, complete the following steps:
1. Remove the rear panel (Section 5.6).
2. Remove the options cover (Section 5.7).
3. Carefully disconnect the fan assembly cable (Figure 5-14).