HP Z420 Installation Manual page 9

Connecting the hard drive LED activity indicator
This section applies to all HP workstations previously listed.
Attach one end of the hard drive LED cable to the RAID controller card LED port (L) as shown in Figure
7 RAID controller card with hard drive LED connector on page 9. The LSI SAS 9212-4i hard drive
LED cable is a 4-to-2 pin connector style. The RAID controller card connection is illustrated in Figure 7
RAID controller card with hard drive LED connector on page 9.
Figure 7 RAID controller card with hard drive LED connector
Attach the other end of the hard drive-LED cable to the hard drive LED activity connector on the system
board, as shown in Figure 8 Attaching the hard drive LED cable on page 9. (An HP Z600 series
Workstation system board is shown for reference in Figure 8 Attaching the hard drive LED cable
on page 9.)
NOTE: To locate the hard drive LED activity connector on the system board, see the service label
inside the workstation side access panel. Use the hard drive LED cable appropriate for the workstation.
Figure 8 Attaching the hard drive LED cable
Step 3—Configuring the cabling
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