This server classes chart shows various system configurations suitable for PMS and the server roles they are capable of performing. Conversely, for any particular task/role you have in mind, you can look up the minimal hardware configuration required.

For a general conceptual level background information on the typical range of memory and hard drive usage for various OS install, based on our empirical data collected in real-world cases, see Memory/HD Usage chart. The exact memory and drive space usage data of each version of PMS is published in the Version History page. See FAQ page for terms & conditions of P-Class servers.

Note:

*Motherboards listed for P-class servers are typical. Actual models vary, but all within our approved list.

**Sustained consumption listed, for purpose of heat/cost calculation. Approx. 45 sec of 150% surge at power up.