Ecco alcuni settaggi utili per i bios delle motherboard per i possessori di schede Radeon.

Use this settings in your BIOS along with the OMEGA drivers to get the best performance possible out of your video card (this settings are not avaiable in all motherboards, use only the ones that fit your BIOS):

Fast Gate A20 Option        : ENABLED
Video BIOS shadowing        : DISABLED
Video BIOS cacheable        : DISABLED
xxxxx - xxxxx Shadow        : ALL DISABLED
IDE prefetch mode           : ENABLED
Init Display First          : AGP or PCI (SELECT YOUR CARD TYPE)
IDE HDD Block Mode          : ENABLED
IDE 32-bit transfer mode    : ENABLED
Assign IRQ for USB          : DISABLED (UNLESS YOU USE USB DEVICES)
Assign IRQ for VGA          : ENABLED
PCI/VGA palette snoop       : DISABLED
PNP OS Installed            : ENABLED (UNLESS YOU WANT TO MANUALLY ASSIGN IRQ's)
Resource Controlled By      : AUTO  (UNLESS YOU WANT TO MANUALLY ASSIGN IRQs AND DMAs)
AGP aperture size           : 128  (USE 64MB IF YOU EXPERIENCE TEXTURE CORRUPTION)
AGP master 1 WS write       : DISABLED***
AGP master 1 WS read        : DISABLED***
Bank 0/1, 2/3 DRAM timing   : TURBO***
CPU to PCI write buffer     : ENABLED
Delayed Transaction         : DISABLED (ENABLE IF YOU EXPERIENCE PROBLEMS WITH CREATIVE SOUND CARDS)
DRAM speculative leadoff    : ENABLED***
DRAM Data Integrity Mode    : NON-ECC (UNLESS YOU HAVE ECC MEMORY)
Delay DRAM read latch       : (THE LOWER, THE FASTER)***
Fast writes                 : DISABLED
Memory parity/ECC check     : DISABLED***
Passive Release             : ENABLED
PCI Concurrency             : ENABLED
PCI master 0 WS write       : ENABLED***
RAS active time             : (THE LOWER, THE FASTER)***
RAS to CAS delay            : (THE LOWER, THE FASTER)**
Read around write           : ENABLED
SDRAM Bank Interleave       : 4-bank/way
SDRAM CAS Latency Time      : 2**
SDRAM cycle length          : 2**
SDRAM Precharge control     : ENABLED
Spread spectrum (modulation): DISABLED
System BIOS cacheable       : DISABLED
Video RAM cacheable         : DISABLED
8 bit I/O Recovery Time     : 1
16 bit I/O Recovery Time    : 1
Turbo frequency             : ENABLED


**  = ONLY IF YOUR MEMORY SUPPORT IT, OTHERWISE USE THE NEXT
      HIGHER VALUE

*** = WILL IMPROVE SPEED BUT DECREASES STABILITY, IF YOU HAVE
      PROBLEMS CHANGE IT

fonte www.omegacorner.com