problem with AMD graphic and chipset drivers

[rimartic]

hi
my mainboard is: msi 990fxa-GD80
VGA: Crossfire of 2 Sapphire R9-270X

According to two type of drivers, one for graphic cards-(Radeon Adernaline Driver) and other for motherboard chip set driver (ATI Catalyst driver)
should i install them both on my system or Radeon adernaline would handle both VGA and motherboard chip set ?

 

[rimartic]

MERGED QUESTION
Question from rimartic : "problem with AMD graphic and chipset drivers"

hi
my mainboard is: msi 990fxa-GD80
VGA: Crossfire of 2 Sapphire R9-270X

According to two type of drivers, one for graphic cards-(Radeon Adernaline Driver) and other for motherboard chip set driver (ATI Catalyst driver)
should i install them both on my system or Radeon adernaline would handle both VGA and motherboard chip set ?