its the 845 chipset.
*www.google.com/search?hl=en&client...:en-US:official&q=intel+G/GL/GE/PE/GV&spell=1
If the installation stops in middle then something is wrong with ur OS. Try uninstalling ur old drivers and installing the new ones. MAKE SURE U HAVE UR OLD DRIVERS BACKED UP SOMEWHERE!!!!
Also you might have a corrupt download to try downloading it again.