NEC HV8600, User Manual

Page: 106 / 204

4-34 Upgrading Your System
Removing a Power Supply
If the LED indicators on a power supply are lit, it’s recommended that power to
the system be turned off before removing the power supply. To remove a power
supply, perform the following steps.
1.
Power off the system.
2.
Unplug the power cord from the AC wall outlet and from the input
receptacle on the rear of the power supply you are removing.
3. Loosen the thumb lock screws (see Figure 4-27, A) that secure the power
supply.
4. Hold the handle on the power supply and pull the power supply out of the
system.
5.
If you are replacing a power supply, go to “Installing a Power Supply,”
otherwise power on the system.
Hot-Swapping a Power Supply
If you are swapping out a faulty power supply, you can determine which one to
remove by checking the status LED indicators on each supply. If either or both
of the LED indicators are off, the power supply can be hot-swapped.
If the LED indicators on a power supply are lit, it’s recommended that power to
the system be turned off before removing the power supply. To remove a power
supply, perform the following steps.
1. Unplug the power cord from the AC wall outlet and from the input
receptacle on the rear of the power supply.
2.
Loosen the thumb lock screws (see Figure 4-27, A) that secure the power
supply you want to replace.
3.
Hold the handle on the power supply and pull the power supply out of the
system.
4. Slide the replacement power supply into the chassis and tighten the
thumbscrews (see Figure 4-27, A) that secure the power supply.
5.
Connect the power cord to the AC wall outlet and to the input receptacle on
the rear of the new power supply.