Power requirements for Dell servers

Dell PowerEdge 1550
Total Power (Watts): 317
Total Power (VA): 453
Total Thermal (BTU/hr): 1083

Dell PowerEdge 1650
Total Power (Watts): 206
Total Power (VA): 294
Total Thermal (BTU/hr): 704

Dell PowerEdge 1850
Total Power (Watts): 287
Total Power (VA): 410
Total Thermal (BTU/hr): 980

Dell PowerEdge 1950
Total Power (Watts): 317
Total Power (VA): 453
Total Thermal (BTU/hr): 1083

Dell PowerEdge 2650
Total Power (Watts): 267
Total Power (VA): 381
Total Thermal (BTU/hr): 912

Dell PowerEdge 2850
Total Power (Watts): 398
Total Power (VA): 568
Total Thermal (BTU/hr): 1359

Dell PowerEdge 2950
Total Power (Watts): 356
Total Power (VA): 508
Total Thermal (BTU/hr): 1216


  1. Thanks for this, very helpful! I very much appreciate it. You’ve helped me fill in most of the gaps on my rack spreadsheet.

  2. A Dell PowerEdge 1955 blade w/ 10 blades (20 Xeon 5300 processors, 4 PSBs, 20 SATA hard drives) – on either 200, 208, or 230 voltage has the following usage:

    Total Power (Watts): 3000
    Total Power (VA): 4284
    Total Thermal (BTU/hr): 10246

  3. The Dell Data Center Capacity Planner that someone posted the link for is a nice tool. Does anyone know if Sun or HP have anything similar?

  4. Thanks for this, as I’m currently working on UPS sizing project now. But I’m curious how you’re getting these numbers:
    Specs on the Dell website way a PE2950 for example has a 750 Watt power supply. Is there some conversion that I’m totally missing?

  5. The real power and heat values are going to be very specific to the layout of your server. How many hard drives, CPUs, RAM, etc.

    I originally used a tool from a UPS vendor to find this. Others have found the DCCP from Dell useful:


    This tool from APC may also be useful for you:


    Click on “Configure by Devices”, then “Server”, Choose the server type, configure it to match yours and you now have the data you need.

Leave a comment

Your email address will not be published. Required fields are marked *