A quick glance at the BIOS and you know who Abit 
is trying to target instantly - tweakers and overclockers. The KR7A-133RAID uses the Award BIOS 
which easily has the most tweaks of any motherboard out there. Team up this BIOS with 
ABits Soft Menu III and an overclocker can take full control of their 
system.   

     FSB can be 
adjusted 1 MHz a time from 100 MHz to 250 MHz FSB! The KT266A only 
supports up to a 1/4 PCI divider and 1/2 AGP, but for 200 MHz 
based processors running at 100 MHz FSB, you can change it to 1/3 PCI 
and 2/3 AGP. The ever elusive 1/5th PCI divider is not present on the KR7A-133RAID 
however.
 CPU 
core voltage ranges from 1.10V to 1.85V. It would have been nice to see 
something a little higher then that, but you can't win them all! I/O Voltage 
can be tweaked from 3.5V to 3.65V which is handy in reaching those really high 
FSB's.
   Memory could only be adjusted from 2.55V to 2.85V, which again 
is a little disappointing since the Epox 8KHA+ can go all the way up to 
3.2V.

As you can see here, 
there are many memory tweaks available for any computer enthusiast. From CAS 
latency, to DRAM timing to Bank Interleave options - if you can't find the 
memory tweak you're looking for, you won't find it anywhere!

 AGP options were pretty standard 
however. Users are able to set the AGP Aperture Size, AGP mode and AGP 
Driving Control.