unlock 5850 bios (not for novices)

F

funkysnair

VIP Member
this is sorced from elswhere but i have done this and i have my 5850 clocked up to 5870 specs...

This is the guide I followed, except instead of using the Asus bios I used the MSI one to ensure compatibility with MSI Afterburner:


http://www.xtremesystems.org/forums/showpost.php?p=4066161&postcount=422 (dont bother with asus link its dead i do belive)

The Steps

Note: Make a backup of your original BIOS using GP-Z

Plug in the USB drive that you want to use.

Install and run HP USB Disk Storage Format Tool.
Select the USB Drive. In the "File system" drop down box, pick FAT32. Tick "Quick Format". Tick "Create a DOS startup disk, using DOS system files located at and click the "..." and direct it to the BOOTFILES folder you made.
Click start.

Once that's done, copy the ATI Flash and ASUS BIOS into the USB drive.

Restart your PC and boot from the USB Flash drive.

Once it's booted in type
atiflash -f -p 0 asus.rom (If you're not using crossfire)

I used the MSI one so I went: atiflash -f -p 0 MSI_R5850_unlock.A11

DOS did not like the long name so I renamed the file to something short like MSI.A11
[*]Once the flashing is done will ask you for reboot. When Windows boot you will see all your resolution lost and Windows will detect a new video card. You will have to re-install the Ati drivers again to take effect.

If you're using crossfire, I'd suggest you flash each card individually (For people like Virus). More so that I don't know how to flash more than one card at once



Good luck

YOU WILL DO THIS AT YOUR OWN RISK, I WILL "NOT" ACCEPT ANY RESPONSABILITY FOR YOUR SCREW UPS OR PROBLEMS
 
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this is a picture of my unlocked ccc before overclocked...

ccc.png


if you compare it to most 5850's you will notice a difference (big difference) in the mhz sliders

picture of my gpu overclocked up to 5870 spec using msi afterburner and my 3dmarko6

new3d.png
 
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That's sweet. :) You have the asus version of the card right?

Edit: it's either me or some of the links does not work. Can you check them please? I have a friend who might be interested in that. He has asus 5850.
 
lubo4444 said:
That's sweet. :) You have the asus version of the card right?
Click to expand...

nope i have the powercolour version, most are reference design so they can use different companys bios

lubo4444 said:
Edit: it's either me or some of the links does not work. Can you check them please? I have a friend who might be interested in that. He has asus 5850.
Click to expand...

yeh the links wont copy + paste so i have put up a direct link to the website i found the info

bomberboysk said:
Might wanna change it to "Not accept responsibility":P
Click to expand...

hahahahahaha pmsl, keep me right lol
 
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anybody tried this yet? mine is still working and i have benched my pc alongside someone who has a 5870 and the same cpu with same overclock

mine was 300pts less in 3dmark06-i havent even started pushing the gpu yet
 
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