下面是FC4的支援
http://fedora.redhat.com/docs/release-notes/fc4/
CPU支援表：
Minimum: Pentium-class — Fedora Core 4 is optimized for Pentium 4 CPUs, but also supports earlier CPUs (such as Pentium, Pentium Pro, Pentium II, Pentium III, and including AMD and VIA variants). This approach has been taken because Pentium-class optimizations actually result in reduced performance for non-Pentium-class processors, and Pentium 4 scheduling is sufficiently different (while making up the bulk of today's processors) to warrant this change.
Recommended for text-mode: 200 MHz Pentium-class or better#文字指令模式要200MHz
Recommended for graphical: 400 MHz Pentium II or better#圖型介面模式要400MHz
AMD64 processors (both Athlon64 and Opteron)#支援AMD64位元CPU
Intel processors with Intel® Extended Memory 64 Technology (Intel® EM64T)#支援INTEL的64位元CPU
RAM的支援表：
1.This list is for 32-bit x86 systems: 要安裝32位元CPU
__Minimum for text-mode: 64MB#文字指令模式要64MB
__Minimum for graphical: 192MB#圖型介面模式要192MB
__Recommended for graphical: 256MB#建議圖型模式使用256MB
2.This list is for 64-bit x86_64 systems: 如安裝64位元的系統
Minimum for text-mode: 128MB#文字指令模式要128MB
Minimum for graphical: 256MB#圖型介面模式要256MB
Recommended for graphical: 512MB#建議圖型介面用512MB
其他的支援，可以看網頁內的說明
REDHAT的LINUX9，不用那麼的高，可以安裝看看