Dell PowerEdge 2650

System Board

The PowerEdge 2650 system board supports the processor electronics, memory, and most key processor functions on a single board. The PowerEdge 2650's system board architecture introduces a new level of system bandwidth and processing power to the rack-optimized dual-processor Industry Standard server market.

System Board Layout

The architecture is built on the foundation of the ServerWorks GC-LE chipset which supports a 400MHz Front Side Bus (FSB) interface between the processors, system memory, and five PCI buses.

Three of the buses are PCI-X buses.

2 of these buses connect the open PCI-X slots to the chipset
The third PCI-X bus connects the dual embedded GbE NICs to the chipset

The fourth bus is a 64-bit/66MHz bus that provides a high bandwidth connection to the embedded RAID.
A legacy bus (32-bit/33Mhz) was retained for connection to the Embedded Remote Access (also referred to as ESM4).
This is a picture of the PowerEdge 2650 system board

System Board Buttons

On the PowerEdge 2650 system board there are two buttons, the power button and the reset button. Below is a picture of their location:

This is a picture of the 2650's system board with the power and reset buttons highlighted

NOTE: As a troubleshooting tip, if the system is receiving power (LEDs on the system board are green) but will not turn on, try using the power button on the system board. This eliminates the control panel from the power up process.

DC/DC Converters

The PowerEdge 2650 has three DC/DC converters soldered to the system board. Two are located by the power supplies, and one is located by the primary processor and RAID battery. The PowerEdge 2650 needs these DC/DC converters because the power supplies provide 12 volts only. These DC/DC converters "convert" the 12 volts into all the other voltages the system requires.