CONFIG_440GRX is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

CONFIG_440GRX (not configurable)

configname: CONFIG_440GRX

Linux Kernel Configuration
└─>440GRX
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  

is depended by
CONFIG_RAINIER