CONFIG_ARCH_PERSONAL_SERVER is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Compaq Personal Server

modulename: personal.ko

configname: CONFIG_ARCH_PERSONAL_SERVER

Linux Kernel Configuration
└─>Footbridge Implementations
└─>Compaq Personal Server
In linux kernel since version 2.6.12  
Say Y here if you intend to run this kernel on the Compaq
Personal Server.

Saying N will reduce the size of the Footbridge kernel.

The Compaq Personal Server is not available for purchase.
There are no product plans beyond the current research
prototypes at this time. Information is available at:

<http://www.crl.hpl.hp.com/projects/personalserver/>

If you have any questions or comments about the Compaq Personal
Server, send e-mail to <skiff@crl.dec.com>.

source code: