IV. Hardware Setup

Power Module Rating

The redundant power supply consists of one frame and two identical ATX power modules. The power supply must be turned on or off through an ATX power switch connected to the motherboard’s panel connector. The power modules are rated at 400W each and have passive current sharing on all outputs. Each power module supplies up to 400W to share the load but two modules combined do not provide 800W. If one power module fails, 400W load is supported using one power module.

CAUTION

Before turning ON your server for the first time, set the power supply’s voltage. Some products may have auto voltage switching to accommodate 220V-240V or 110-120V but this power supply must be set manually. The factory default should be on 230V to accommodate the higher voltage but it is safer to visually inspect the switch yourself in case it is not. Using the power modules set on 115V in 230V environments may cause damage to the power modules.

IMPORTANT

For countries using 110V-120V, you must slide the switch to 115V or else power up is not possible (but no damage will occur).

Power Module Failure

If any of the power modules fails to provide a voltage on any of its outputs, an audible alarm (located in the frame) will sound and the failed power module’s LED will turn OFF. The power module’s status LED lights when both input and output voltages are stable and darkens if either the input or output voltages fail. If the alarm sounds, perform the following steps:

1.Remove the power cord to the failed power module (with dark LED).

2.Remove the two screws and slide the failed power module out. The alarm should stop. If not, there may be a problem with the other module or with the redundant power supply frame (very unlikely).

3.Reinsert the failed power module and plug in the AC cord to confirm.

4.If the alarm sounds again, remove the failed power module and replace it with a good one as soon as possible.

Power Supply Info

IV. Hardware Setup

AP8000 Hardware Reference Guide

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