IBM 621410U Hardware Maintenance Manual - Page 49

Installing options Before you begin 41 System reliability considerations 42 Desktop model 42 Major components of the desktop model . . . 42 System board 43 System board internal cable connectors . . . 44 System board external connectors . . . . . 44 CMOS recovery jumper 45 Installing options in a desktop model. . . . . 45 Removing the cover 45 Removing the frame support bracket . . . . 46 Working with adapters 46 Adapter considerations 47 Adapter installation 48 SCSI adapter installation 49 Internal drives 50 Internal drive bays 50 Preinstallation steps 51 CD-ROM or diskette drive installation . . 51 Hard disk drive installation 52 Power and signal cables for internal drives 54 Memory module installation 55 Security U-bolt installation 56 Replacing the cover 56 Tower model 57 System and PCI extender boards 58 System board internal cable connectors . . . 59 System board external cable connectors . . . 60 CMOS recovery jumper 61 Installing options in a tower model . . . . . 61 Moving the stabilizing feet 61 Stabilizing feet with release tabs . . . . 62 Side cover removal 63 Support bracket removal 64 Working with adapters 65 Adapter considerations 66 Adapter installation 66 SCSI adapter installation 68 Internal drive installation 69 Internal drive bays 69 Preinstallation steps 70 Bay 2 or 4 drive installation 71 Bay 5, 6 or 7 installation 72 Power and signal cables for internal drives 73 Memory module installation 74 Security U-bolt installation 75 Replacing the cover 77 Connecting external options 77 Input/output connector locations 78 Desktop model 78 Tower model 78 Input/output connectors 78 Video connector 79 Keyboard connector 80 Mouse connector 80 Parallel connector 81 Viewing or changing the connector assignments 81 Parallel connector pin-assignments . . . 81 Serial connectors 82 Ethernet connector 82 Universal Serial Bus connectors. . . . . . 82 USB cables 83 USB connectors 83 Audio connectors 83 Line out 83 Line in 83 Microphone 83 Ultra160 SCSI connector 83 SCSI cabling requirements 84 Setting SCSI IDs 84 Before you begin Before you begin to install options in the computer, read the following information: v Become familiar with the safety and handling guidelines specified under "Handling electrostatic discharge-sensitive devices" on page 134, and read the safety statements in "Safety information" on page 131. These guidelines will help you work safely with the computer or options. v Make sure that you have an adequate number of properly grounded electrical outlets for the computer, monitor, and any other options that you intend to install. v Back up all important data before you make changes to hard disk drives. v Have a small, flat-blade screwdriver available. v For a list of supported options for the computer, refer to http://www.ibm.com/pc/support on the World Wide Web. © Copyright IBM Corp. 2001 41