You won't necessarily get any new drivers for processor, my are from April 2009 and I have newest Crimson drivers. Chipset drivers are about same vintage. There's nothing wrong with them.
Thing is that chipset doesn't have unified drivers but there are separate drivers for sound (CODEC chip), LAN, SATA etc.
S
Audio and LAN are Realtec so you can get newest drivers from Realtec.
Asmedia SATA drivers from Asus. AHCI driver is included.
In any case, if it works fine, don't fix it !!!