They're is a problem with the software for this chipset on the install CD
This might take several trials
1
When you're system boots into the grub menu
edit the vmlinuz etc line and remove rhgb
continue to boot
2
if this doesn't work do the same as above and add 3
log in as user and change su -
enter
yum update xorg
if update is successfull
exit as root and startx
for more info
https://bugzilla.redhat.com/bugzilla....cgi?id=132267
last if above doesn't work
try this
In /etc/X11/xorg.conf, make sure your video section includes
Options "noaccel"