Dell Precision 390 - Manual (Page 66)

Drive Cable Colors
Hard Drive
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 ).
Removing a Hard Drive (Tower or Desktop Computer)
1. Disconnect the power cable from the hard drive.
2. To remove a serial ATA hard drive:
a. Disconnect the serial ATA cable from the hard drive.
b. Disconnect the serial ATA cable from the SATA0 or SATA1 connector on the system board, depending on whether you are removing the hard drive
from the secondary or primary hard-drive bay.
1 power cable 2 SAS connector 3 SAS drive
4 SAS data cable 5 SAS connector 6 optional PCI Express SAS controller card
Device Color
Hard drive blue cable
Floppy drive black pull-tab
CD/DVD drive orange pull-tab
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.
CAUTION: For configurations with three SAS hard drives, you must install an additional fan. See Installing an Additional Fan .
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer'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 will
sufficiently cushion it.