My specs are following:
A 845GL chipset based board with onboard graphics and 4x ultra AGP slot
Nvidia GeForce FX 5200 graphics card
2.4 Ghz Intel P4 presscott processor
768MB RAM
40GB HDD, 1 CDRW and 1 DVD-Rom Drive
Onboard Sound
Onboard Sis 100/10 fast Ethernet controller
17 inch CRT Monitor
20GB for windows Xp and 20GB for Linux
I have previously installed FC3,4 and 5 with the onboard Graphics and it worked like a dream....