Lenovo ThinkServer RD440 User Manual And Hardware Maintenance Manual page 212

9. Remove the power supply cooling shroud.
Figure 163. Removing the power supply cooling shroud
10. Remove all memory modules. See "Removing a memory module" on page 106.
11. Remove the TMM Premium if one is installed. See "Removing the TMM Premium" on page 130.
12. Remove the TPM if one is installed. See "Removing the TPM" on page 133.
13. Remove the heat sinks. See "Installing or replacing a heat sink" on page 139.
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ThinkServer RD440 User Guide and Hardware Maintenance Manual