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Replacement procedure
1. Remove the computer cover. See "Computer cover" on page 52.
2. Remove the following devices if any:
• Full-length PCIe cards, see "Full-length PCIe card" on page 85
• PCIe card retainer, see "PCIe card" on page 81
3. Remove the front fan assembly.
Note: When you slide out the front fan assembly, avoid pulling the front-fan-assembly cable.
4. Disconnect the front-fan-assembly cable from the front-fan-assembly connector on the system board.
5. Connect the cable of the new front fan assembly to the front-fan-assembly connector on the system
board. See "System board" on page 4.
6. Install a new front fan assembly.
7. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
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P620 User Guide
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