Dell PowerEdge M420 Hardware Owner's Manual - Page 249

Shutdown Procedure for Servicing a Hard Drive NOTE: This section applies only to situations where the blade must be powered down to service a hard drive. In many situations, the hard drive can be serviced while the blade is powered on. If you need to power off the blade to service a hard drive, wait 30 seconds after the blade's power indicator turns off before removing the hard drive. Otherwise, the hard drive may not be recognized after the hard drive is reinstalled and the blade is powered on again. Configuring the Boot Drive The drive or device from which the system boots is determined by the boot order specified in the System Setup program. See "Using the System Setup Program and UEFI Boot Manager" on page 127. Removing a Hard Drive From a Hard-Drive Carrier Remove the four screws from the slide rails on the hard-drive carrier and separate the hard drive from the carrier. See Figure 3-54. Installing a Hard Drive in a Drive Carrier 1 Insert the hard drive into the hard-drive carrier with the connector end of the drive at the back of the carrier. See Figure 3-54. 2 Align the screw holes on the hard drive with the holes on the hard-drive carrier. 3 Attach the four screws to secure the hard drive to the hard-drive carrier. Installing Blade Components 249