Ix86 (X =3-->6 just now) means anything based on the Intel 32Bit 386 CPU, which is HUGE amount of diferent cpu's.
Ix86 can e anything from Intel386-->pentium4 (celeron) 3.XGhz . or AMD or Cyrix... 386, 486, 586 (yes they exist). pentium 1-->4, pentium pro, celeron, athlon, duron, XP.... as you see the list could be made long.

So YES your 2.2Ghz SHOULD be supported. it might be some minor thing tripping those others. like a nonstandard keyboard, mouse, screen...
do you get any error message?
if so post it here
EDIT by "based on" i mean they are related... the ones folowing have evolved but share several thingsin common. /EDIT