Unlocking 5770's Bios for some 1Ghz action :D

[Tom|Nbk]

Anyone have any good guides to flash a pair of 5770's to the Asus Volt Tweakers?

Bit bored and fancy messing about

Yes I've flashed BIOS before and know what to expect if it ****s up

 

[Martini1991]

Stickied thread, just get a 5770 BIOS.

 

[Tom|Nbk]

Done both cards just now, piece of ****

Guide for anyone that wants to do similar

Another way to eliminate these over clocking limitations is to flash the bios of your 5770 to that of the Asus HD5770 Voltage Tweaker Edition.. Please note that doing so will surely void your warranty and could very likely render your card inoperable!! Follow at your own risk...

Below is a detailed guide to flashing you bios.

**Please note again, you take full responsibility for doing this**

Lets start at what you need..

* Any Flash drive or USB bootable device such as external hard drives will do
* HP USB Disk Storage Format Tool
* The Boot Files (Extract them)
* Atiflash
* The Unlocked Bios (Extract it and rename it to something like unlock.bin

Start with installing the HP USB Disk Storage Format Tool.

* Select the Device you plan to use and choose FAT32 as the File System
* Tick the box "Create a DOS startup disk" and select the option "using DOS system files located at" then browse to the extracted boot files you downloaded.

Start the prosess.

When it's done you will have a bootable USB device, all you have to do now is copy the Atiflash.exe and unlock.bin to the root of your bootable device and reboot your computer.

See to it that your bios points to this device as the First Boot Device and once it booted to DOS just type:

atiflash -f -p 0 unlock.bin

Once finished it will tell you to restart the computer to continue, just press Ctrl + Alt + Delete

If you have 2 cards in crossfire, remove one and flash one at a time, making sure the one being flashed id in the top most pci-e slot

Enjoy unlocked overclocking...

 

[Martini1991]

Do you not see stickies rofl?

 

[Tom|Nbk]

Do you not see stickies rofl?

No.

 

[Antilo]

Could you not just use MSI afterburner to tweak voltages? Works on all brands I believe

 

[liquidex]

What is a 5770 at 1ghz equal too? Stock 4890/275?

 

[Tom|Nbk]

Could you not just use MSI afterburner to tweak voltages? Works on all brands I believe

Nah didn't want to work my my powercolors for some reason, plus with this bios the CCC is unlocked now so I use MSI to set the voltage and then I clock in CCC because I find CCC the most stable without problems

 

[Tom|Nbk]

What is a 5770 at 1ghz equal too? Stock 4890/275?

4890 I'd imagine