Lenovo 9136, 9127, 9134, 9129, 9120 manual Replacing the rear fan assembly

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6.Pull on the tips of the rubber mounts until the fan assembly is in place.

7.Connect the front fan assembly cable to the power fan connector on the system board.

8.Reinstall the front bezel.

9.Go to Chapter 4, “Completing the parts replacement,” on page 43

Replacing the rear fan assembly

Attention

Do not open your computer or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support.

This section provides instructions on how to replace the rear fan assembly.

1.Remove the computer cover. See “Removing the cover” on page 11.

2.Disconnect the rear fan assembly cable from the system fan connector on the system board. See “Identifying parts on the system board” on page 9.

Chapter 3. Installing options and replacing hardware 37

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Contents ThinkCentre Hardware Installation and Replacement Guide Page ThinkCentre Hardware Installation and Replacement Guide Page Contents Iv Hardware Installation and Replacement Guide Figures Vi Hardware Installation and Replacement Guide Important safety information Hardware Installation and Replacement Guide Additional information resources OverviewHandling static-sensitive devices Locations Controls and connectorsConnector locations Locating connectors on the rear of your computerConnector Description Component locations Locating componentsShows the location of parts on the system board Identifying parts on the system boardHardware Installation and Replacement Guide Installing options and replacing hardware Installing external optionsRemoving the cover Removing the computer cover Removing and replacing the front bezelRemoving the front bezel Installing memory Installing internal optionsWhat to do next Installing PCI adaptersOpening the adapter latch Closing the adapter latch Drive specifications Installing internal drivesInstalling a drive in bay 1 or bay Locating the spare retainer bracket Connecting a parallel ATA drive Connecting drivesConnecting a serial ATA drive Removing the battery Replacing the batteryRemoving the power supply screws Replacing the power supply assemblyRemoving the heat sink Replacing the heat sinkReplacing a hard disk drive Installing the new heat sinkRemoving the hard disk drive Installing the hard disk drive into bracket Replacing an optical drive Installing the hard disk drive and bracketRemoving the optical drive Removing the diskette drive Replacing the diskette driveRetainer bracket for diskette drive Replacing a memory moduleReplacing a PCI adapter Installing the new memory moduleRemoving the PCI adapter Install the new adapter into the same adapter connector Replacing the front fan assembly Replacing the rear fan assembly Pull the rear fan assembly out of the chassis Replacing the keyboard Replacing the rear fan assemblyLocate the keyboard connector. See Figure Replacing the mouse Mouse connectors, standard and USBHardware Installation and Replacement Guide Replacing the computer cover Completing the parts replacementObtaining device drivers Integrated cable lock Security featuresPassword protection Erasing a lost or forgotten password clearing CmosPadlock Security features Hardware Installation and Replacement Guide Appendix. Notices Trademarks Television output noticeCRU IndexPage Page Part Number 43C4834
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