*** Official Radeon HD5800 Series Overclocking Thread ***

[Raiden]

And single HD5850:

What Bios are you using?

And is this stable for gamming?

I have a powercolor 5850 with watercooling and i want to overclock it , what should i do to get near your values?

But i never flashed a bios and i read it could damage the graphic card

[nickless]

What Bios are you using?

And is this stable for gamming?

I have a powercolor 5850 with watercooling and i want to overclock it , what should i do to get near your values?

But i never flashed a bios and i read it could damage the graphic card

I use Asus 5850 bios, but this frequencies are not stable for gaming. For gaming I set the card 1030/1200 - 1.26v, but for this bench is 1.5v (but water cooled) with Smart doctor utility.
About the flashing don't worry, I have flashed my Sapphire so many times and I don't damaged it yet
You can read this post and if you make everything right there will be any problems.
Regards.

[ZL1Killa]

Wanted to clarify something real quick, I have flashed bios's before...just want to be sure I have it right.

I'm running crossfire 5870 cards, SO:

Uninstall video card driver & CCC before all of this?

Ok, Use GPUZ to make a backup copy of your current BIOS & SAVE IT.

FLASHING:
Plug in a USB drive to use, install & run HP USB disk Storage Format tool.

Select the USB drive, in the "file system" drop down box, pick FAT32.
Click "Quick Format". Click "Create a DOS startup Disk, using DOS system files

located at and click the "...." and direct it to the BOOTFILES folder (Boot Files

HP).

Click START.

Once done, copy the ATI Flash & ASUS BIOS onto the USB Flash Drive.

Restart the PC & Boot from the Flash Drive.

Once Booted,

Since I'm running crossfire, type in:

atiflash -i

This will tell ID# for each card.
one being 0 and the other being 1 (depends on slot number or just amount of cards installed?)

THEN, type:

atiflash -p -f 0 bios.rom

Reboot at this point with only the 1st card flashed? and then flash the next card?? or flash both at same time??

ALSO, I noticed in a NON-CROSSFIRE post (First link to flashing) that instead of -p -f it is -f -p ..... does this make a difference?
IS the -p -f order important? Is the -p -f the correct order for crossfire?

(Sorry for all the questions....don't want to fubar it)