Removing the front fan assembly | Lenovo 4219, 4220, 4222, 4215, 4221

4.Release the two tabs 1 that attach the front fan assembly to the chassis as shown and then completely remove the front fan from the chassis.

Figure 28. Removing the front fan assembly

Chapter 2. Installing or replacing hardware 35

Image 43

Lenovo 4219, 4220, 4222, 4215, 4221 manual Removing the front fan assembly

Contents

ThinkStation User Guide Page ThinkStation User Guide First Edition February Copyright Lenovo Contents Index Important safety information Vi User Guide Product overview Features System management features Security features Dimensions Specifications Software provided by Lenovo Software overview Antivirus software Adobe Reader Front connector locations Locations Locating connectors on the front of your computer Rear connector locations Locating connectors on the rear of your computer Connector Description Component locations Locating components Locating internal drives Locating parts on the system board Drive bay locations Installing or replacing hardware Installing or replacing hardwareHandling static-sensitive devices Removing the computer cover Installing external options Removing the computer cover Removing and reinstalling the front bezel Removing the front bezel Installing or replacing a PCI card Opening the PCI card latch Removing a PCI card What to do next Installing or replacing a memory module Opening the retaining clips Installing a memory module Installing or replacing the optical drive Removing the optical drive Installing the optical drive Removing the screws for the power supply assembly Replacing the power supply assembly Replacing the heat sink and fan assembly Removing the heat sink and fan assembly Removing the primary hard disk drive Replacing the primary hard disk drive Installing the hard disk drive into the bracket Replacing the secondary hard disk drive Installing the primary hard disk drive Removing the secondary hard disk drive Installing the hard disk drive into the bracket Replacing the card reader Installing the secondary hard disk drive Removing the card reader Replacing the front fan assembly Removing the front fan assembly Installing the front fan assembly Removing the rear fan assembly Replacing the rear fan assembly Replacing the keyboard Installing the rear fan assembly Replacing the mouse Keyboard connectors Mouse connectors Completing the parts replacement Reinstalling the computer cover Installing security features Integrated cable lock Installing an integrated cable lock Erasing lost or forgotten passwords clearing Cmos Password protectionPadlock User Guide Creating and using recovery media Recovery informationCreating recovery media Using recovery media Performing a backup operation Performing backup and recovery operationsPerforming a recovery operation Using the Rescue and Recovery workspace Creating rescue media Creating and using rescue media Creating and using a recovery repair diskette Using rescue media Using a recovery repair diskette Creating a recovery repair disketteInstalling or reinstalling device drivers Solving recovery problems Setting a rescue device in the startup sequence Using passwords Using the Setup Utility programStarting the Setup Utility program Viewing and changing settings Hard Disk Password Password considerationsPower-On Password Administrator Password Selecting a startup device Enabling or disabling a deviceSelecting a temporary startup device Exiting from the Setup Utility program Advanced settingsSelecting or changing the startup device sequence Creating RAID volumes Configuring RAIDRAID Level Deleting RAID volumes Updating flashing Bios from a disc Using system programsUpdating system programs Recovering from a POST/BIOS update failure Updating flashing Bios from your operating system Updating system programs User Guide Basic troubleshooting Troubleshooting and diagnostics Lenovo ThinkVantage Toolbox Diagnostic programsLenovo System Toolbox PC-Doctor for DOS PC-Doctor for Rescue and Recovery Optical mouse Cleaning the mouse Non-optical mouse User Guide Lenovo ThinkVantage Tools Getting information, help, and serviceInformation resources Online Books folder Help and service Safety and WarrantyUsing the documentation and diagnostic programs Using other services Calling for service Purchasing additional services Appendix. Notices European conformance CE mark Trademarks Television output notice CRU IndexPage Page User Guide Page Part Number 71Y8009