NEC Express5800 series User Manual page 189

SCSI backplane
Sys Fan 3
Confirm that the FPC cable is securely connected to the
NOTE:
connector on the SCSI backplane and the one on the system board.
Route the SCSI cable.
23.
The SCSI backplane has ventilating holes for cooling the hard disk drives. Route the
SCSI cable between the ventilating holes so that the cable will not cover the holes.
IMPORTANT:
effect.
24. Route the SCSI cable and connect it to the connector of the board.
When connecting to the SCSI connector on the system board, route the SCSI cable
closer to the power supply unit than the SCSI cable connected to the SCSI backplane.
When connecting the SCSI cable to an optional SCSI controller, route the SCSI cable
connected to the SCSI connector on the system board close to the power supply unit.
Confirm that the SCSI cable does not cover the ventilation hole
NOTE:
of cooling fan of the power supply unit.
SCSI backplane
FPC cable connector
Sys Fan 1
SCSI backplane
SCSI cable
This step is very important for increasing the cooling
SCSI backplane
FPC cable
Ventilation holes
Do not cover the ventilating holes of
the cooling fan with any cable.
Upgrading Your NEC Storage 179