Quote from: VForrest on June 03, 2017, 07:17:45 PM

Quote from: bitkuna on April 08, 2017, 03:51:42 AM

Asus STRIX ROG 8GB OC

I have several cards, some have 256k bios, some 512k. Posting both.

https://ufile.io/51702
https://ufile.io/c50db1

Can you share these again? They are not longer available on the links you shared.

Thanks!

I have the same cards and they came with Samsung memory. You can verify the memory brand of your card in GPU-Z. It's pretty simple to modify the memory straps of your original bios. All you need is atiflash and Polaris Bios Editor:

https://www.techpowerup.com/download/ati-atiflash/

https://github.com/caa82437/PolarisBiosEditor

Extract the Atiflash zip to a folder on your Desktop and open a command prompt in that folder. The first step is to backup your original bios in case something goes bad. At the command prompt type:

Code:

atiflash -s 0 BACKUP.ROM

The above command assumes the index of video card you want to backup is 0. It's best to flash the cards one at a time and remove any other cards so you won't make a mistake. After you backup the bios, extract the Polaris bios editor zip to another folder on your Desktop and copy the bios you backed up to that folder. Run Polaris bios editor and open the bios in it. On the bottom right box, you will see the memory timing values. Most people start with copying the value in the 1500 or 1625 MHz box and replacing all the higher frequency values so they are the same. What works best is highly dependent on the type of card you have and the type of memory it uses, so you will have to research what works best for the cards you have. On my Asus STRIX RX 480 GAMING 8GB OC editions, they came with Samsung memory and the 1750 strap over the 2000 works best.

Once you adjust the memory straps save the bios and copy it to the atiflash folder. Flash the bios to your card with:

Code:

atiflash -p -f 0 MEMSTRAP.ROM

After it finishes loading the bios, don't reboot as it asks you to. Since you are using a modified custom bios and the new AMD drivers since 16.12 check for a valid bios signature, you need to patch the driver or use a driver older than 16.12 for Windows to recognize the card. To patch the driver download atikmdag-patcher:

https://www.monitortests.com/forum/Thread-AMD-ATI-Pixel-Clock-Patcher

and use it to patch the driver before rebooting.

BBT also posted the bios he used in the description of the YouTube video where he shows how to setup the Asus RX 480 rig he built

https://www.youtube.com/watch?v=3C1dr-HDDYs