ABIT uses a Phoenix Award BIOS for their motherboards. The high-end motherboards come with the uGURU chip. This one is based upon NVIDIA's performance nForce 570 SLI chipset and does not have uGuru. Otherwise it's a pretty standard Award BIOS. The meat and potatoes of the BIOS options are the overclocking features.
The HyperTransport link can be set from 200 MHz-450 MHz in 1 MHz increments. The PCI-Express clock can be set from 100 MHz to 145 MHz in 1 MHz increments. The HT Multiplier can be set from 1x-5. DDR2 memory can be set from 400/533/667/800 MHz. The CPU voltage can be set up to +2.100V in 0.025v increments. Memory VDIMM can be set from 1.8-2.30V. Memory VTT can be set from -60/-30/+0/+30mV. The MCP voltage can be set from 1.20-1.40V in 0.05v increments. HyperTransport Voltage can likewise be set from 1.20V-1.40V in 0.05v increments.