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Dell PowerEdge 6650

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Dell PowerEdge 6650

Power System

Power Supply

The PowerEdge 6650 server uses two hot-swappable 900W power supplies in a 1+1 redundant configuration. The supplies are auto-ranging (80-265VAC) with integrated power factor correction (PFC). Internal logic is provided to monitor the supply status and fan operation and communicate this info to the ESM-3 (via the PDB microcontroller). LED indicators visible external to the supplies indicate power good status and power supply or fan failure.

Click on the image of the power supply to flip the picture.

This is a picture of the power supply

The supplies are accessible from the top of the system and dock into the PowerEdge 6650 PDB. Each supply has an AC input accessible from the rear of the system. Since the 1+1 redundant configuration also provides for AC circuit redundancy, a redundant AC power module is not present in the PowerEdge 6650.

Power Supply Specifications

Wattage	900 W (AC) each, max 900W @ 100VAC
Voltage	100-240 VAC, 60/50MHz, 9-4.5 A
Heat Dissipation	3073 BTU/hr maximum for entire system
Maximum Inrush Current	Under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55 A per power supply for 10ms or less.
System battery	CR2032 3.0-V lithium coin cell

220V Power Plug

The PowerEdge 6650 will work on either 220V or 110V. It is equipped with two cords: one a 220V and one a 110V that has a female 220V connection and a male 110V connection.

This is a picture of the PowerEdge 6650 with the power plugs highlighted

PowerEdge 6650 Power Distribution Board

The PowerEdge 6650 system uses power supplies that are designed to share current, so a power supply paralleling board (PSPB) is not required. Instead power distribution boards (PDBs) provide the docking connection to the power supplies and the distribution of current to other parts of the systems.

This is a picture of the PowerEdge 6650 with the cover off; the PDB is highlighted

The PowerEdge 6650 PDB is positioned under the power supplies, which dock from the top of the system.

The PDB connects to the PowerEdge 6650 processor tray, and all power and signals are routed through the connector.

The PDB microcontroller monitors and controls the power supplies and the associated logic.

The process for removing the PDB is demonstrated below.

Removing the PDB


	Step 1: Remove the power supplies and locate the blue release tab and pull it towards the back of the system. While doing this, pull the PDB out through the side of the system.





	Step 2: Gently pull the PDB out the rest of the way.

Removing the PDB from the Securing Plate

Step 1: Loosen the thumbscrew that secures the PDB to the chassis.

This is a picture of the PDB with the thumbscrew highlighted

Step 2: Slide the PDB forward about a quarter of an inch.

This is a picture of the PDB. The direction the PDB should be moved in order to remove it from the system is highlighted

Step 3: Lift the PDB away, off its grounding tabs, and off of the carrier.

Integrated Redundant AC Power Module

This is not an option of the PowerEdge 6650.

Power VRM

On the PowerEdge 6650 there is a 5-volt Power Voltage Regulator Module located on the I/O board. This must be installed for the system to POST.

This is a picture of the power assembly VRM

This is a picture of the power assembly VRM, removed from the bracket