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This document is for a previous release of cPanel & WHM. To view our latest documentation, visit our Home page.

For cPanel & WHM 11.46


Before you install cPanel & WHM or cPanel DNSONLY, make certain that your server's hardware meets all of the minimum requirements for new installations.


 64-bit operating systems use more RAM than 32-bit systems.


How to choose a server

When you choose a server, you should consider the following questions:

  • How many sites do you plan to host?
    For example, if your server will host a large number of websites, which will each have associated email addresses and databases, the server will require more processing power, disk space, and RAM.
  • What kind of web hosting you plan to do? 
    While cPanel & WHM will run on the minimum requirements below, the server will need more processing power, disk space, and RAM if you plan to host videos, music, or high-volume applications like forums.


Hardware requirements

Processor226 MHz226 MHz

512 MB of RAM

1 GB of RAM
Disk Space

20 GB of disk space

40 GB of disk space


The cPanel & WHM installation and upgrade processes require at least 3 GB of additional disk space for staging purposes.