Definitive Bios Optimization Guides

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Deepak

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Forerunner
Loads of people while OC'in miss out on a few things in the BIOS which are generally required for a successful OC.

So here it goes, the 2 BOG's I could find on the net, they are both pretty comprehensive and will give you an insight to the BIOS options like never before :tongue:

Tech ARP - The Definitive BIOS Optimization Guide

The Definitive BIOS Optimization Guide

Also, quick and dirty guide to what some of the options should be set at available at :

OmegaDrivers.net

Code:
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 (WINDOWS XP CAN HANDLE PNP BETTER THAN BIOS)               

Resource Controlled By      : AUTO (UNLESS YOU WANT TO MANUALLY ASSIGN IRQs AND DMAs)               

AGP aperture size           : 256 (USE LOWER VALUE IF YOU HAVE TEXTURE PROBLEMS)

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 ****

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 (ENABLED FOR RADEON 9600 OR ATHLON64 SYSTEMS) 

Memory parity/ECC check     : DISABLED *** 

Passive Release             : DISABLED 

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

              

****               = ENABLE IF YOU EXPERIENCE PROBLEMS WITH CREATIVE SOUND CARDS
Make sure to check atleast these options while OC'in and even generally.
 
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