Replacing The Front And Rear Fan Assemblies - Lenovo 410554U Hardware Maintenance Manual

7. Install the retainer bracket on the new diskette drive or card reader.
8. Disconnect the signal cable from the failing diskette drive or card reader and connect it to the new drive.
9. Slide the new diskette drive or card reader into the drive bay until it snaps into position.
10. Connect the diskette drive cable to the diskette drive connector on the system board. If you are installing
a card reader, connect it to the card reader connector on the system board. See "Locating parts on the
system board " on page 111.
11. Reinstall the hard disk drive fan bracket if removed.
12. Reinstall the front bezel.
13. Go to "Completing the FRU replacement" on page 106.

Replacing the front and rear fan assemblies

Attention
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
in the ThinkStation Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkStation
Safety and Warranty Guide, go to:
http://www.lenovo.com/support.
This section provides instructions on how to replace the front and rear fan assemblies.
1. Remove the computer cover. See "Removing the cover" on page 76.
2. Locate the fan assembly that you want to replace. Your computer has one front fan assembly and one
rear fan assembly. See "Locations" on page 77.
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Chapter 11 Replacing FRUs (Type 4155, 4158, 4218)
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