Dell Precision 490 Desktop User Manual

Also see for Precision Workstation 490: Quick reference guide Quick reference guide Quick guide Specifications

Contents

Hard DriveRemoving a Hard Drive from the Rotatable Carrier (Tower or Desktop Computer)1. If you are replacing a hard drive that contains data that you want to keep, back up your files before you begin this procedure.2. Follow the procedures in Before You Begin.3. Remove the computer cover (see Removing the Computer Cover).4. Disconnect the hard drive power cable from the hard drive that you are removing.5. Disconnect the data cable from the hard drive that you are removing.Do not disconnect the data cable for an uninstalled hard drive from the system board.6. Rotate the hard-drive carrier out of the computer (see Rotating the Hard-Drive Carrier Out of the Computer).7. Press the blue tabs on each side of the hard-drive bracket toward each other and slide the drive up and out of the hard-drive bay.If you are going to install a replacement drive, see Installing a Hard Drive into the Rotatable Carrier (Tower or Desktop Computer).5 SAS connector6 optional PCI Express SAS controller cardNOTICE: If SATA and SAS drives are mixed, the two drives of the same type should be installed in the rotatable drive bay.NOTICE: It is recommended that you only use SAS cables purchased from Dell. Cables purchased elsewhere are not guaranteed to work with Dellcomputers.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of yourcomputer's electronic components. You can do so by touching an unpainted metal surface on the computer.NOTICE: To avoid damage to the hard drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that willsufficiently cushion it.NOTICE: If only one hard drive is to be installed, it should be connected to the SATA0 connector on the system board.1 data connector2 power connector3 hard drive