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[UPDATED] Modify your ATI bios using RBE

post #1 of 52
Thread Starter 
Disclaimer: Moding and flashing your bios is risky and could, potentially, brick your card. This method has been sucessfully tested using reference 5850s (though other reference 5xxx series cards should work). Flash at your own risk.

UPDATE: This guide should work on all ATI cards (key word here is should). For editing a non-reference card, all the below steps apply except the voltage steps (editing the voltage of a non-reference card will most likely brick it since non-ref cards lack voltage control). For non 5xxx series cards, all the same steps apply! My edits to the below procedure will be bolded to encompass all cards. Remember, I have not tested this. I am basing this my own research on RBE and ATI bios'.

I have noticed that many of you use MSI afterburner to OC your video cards and that works really well. However, after you find a stable OC, you have to save your profile to AB and run it at startup to get OC back. Rather than doing this, you could modify your cards bios to the core/mem/voltage that you OC'd to and eliminate the need for AB!

The first thing you should do is find a stable OC (obvious answer but extrememly necessary) because flashing to a bios with an unstable OC could potentially cause HW damage. Next you need to download the Radeon Bios Editor (or RBE) found here (no install required) (RBE link). After that, you can either get your current video card bios (using GPU-Z or the aquire/flash button in RBE) [Using your bios aquired this way is strongly reccommended for non 5xxx series/non-ref cards] or use one of the bios’ in the link below (I used the ASUS 5850 for mine). I personally use the ASUS bios becuase I wanted to start with an unlocked bios. Video BIOS page

Important: Make sure you keep a copy of you stock BIOS in case the bios you mod fails and you need to flash back!!!!

The first thing I would suggest that you do is read over the RBE Manual in order to familiarize yourself with the tool. It should serve to answer some of your basic questions as well as make it easier to use in general. It has really some steps on modifying non 5xxx series cards that may be good to review as well.

Now the fun begins. After starting RBE, you want to load you bios. After this, go to clock settings. We will first update the core/memclock. To do this, click the clock tuning wizard button and click next to get to your overclock settings (note: these are your 3d settings). From here enter your desired core/memclock only, DO NOT CHANGE VOLTAGE FROM HERE. Click next and it will show your 2d settings (you shouldn’t need to change these), click next, then on the final page, click finish. Your new clocks should show up in the “Clock info 00” slot. Somthing to note here, if you are using an ASUS bios, then modding the core/memclock here is not really necessary because you can crank up those values in CCC. Feel free to mod these if you want to not have CCC active (I need to keep my CCC active for xfire).





Now, to change the voltage (if needed) you need to push “GPU Registers…” button. A pop up appears with 4 boxes with numbers. Above each box is a number (something like 0x15, 0x16, 0x17, 0x18). To find the number you want to change, match the box in the pop up to the voltage under the “Clock info 00” slot (for the ASUS 5850 bios, it’s the 0x17 box). Enter the desired voltage and press “okay” (again DO NOT CHANGE THE VOLTAGE UNDER THE “clock info 00” slot). The number under your “clock info 00” slot will not change, but that is ok because voltage register is changed (and that is the important one). Again, dont change the voltage for a non-reference card.



You are now finished changing your core/memclock/voltage!

Note: you can save your bios at anytime, but it is only a “save as” so recommend saving after all updates are made.
Edited by thebigrobbyrob - 8/6/10 at 11:53am
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post #2 of 52
Thread Starter 
**Sorry still no screenies.... the text is pretty solid though.**

This section remains the same for all ATI cards.

In this section, we will discuss how to set up a custom fan curve using RBE. Doing this is not critical to a sucessful overclock, so I would honestly recommend skipping it and proceed with flashing. If you just have to do it, then keep reading...

After selecting the Fan Settings button, you are greeted with 2 options for fan throttle control (Transfer function and a look up table) as well as some general settings on the bottom.

Lets first look at the Transfer function option. In this option there is only 3 settings that you can modify; Tmin (the temp where the fan will start to spin up), Tmax (the temp where the fan will be at 100%), and duty cycle min (this is how fast the fan will spin before reaching Tmin). Each of these fields can be manually edited or you can click and drag the blue dots on the graph on the right to the desired spot (the numbers for Tmin, Tmax, and duty cycle min will change as you drag the blue dots). This option allows for the most simplistic mods and is recommended for most users.

Next we will look at the look up table option. This options allows for greater control of you fan speeds by giving you more temperature options/fan speed options (this option is probably most like the AB fan control). Like the transfer function, all the fields are fully editable and you are able to drag the blue dots on the graph to a desired location. Note: In the bios I used, the fan did not start until 60 degrees C. Make sure in the first temp box, you put 0 degrees so the fan will run all the time rather than wait until a certain temp to activate.

The options on the bottom, I don’t mess with. I’m not 100% sure what they do and how they affect the fan settings but the link “what do these settings mean?” outline each of the items pretty well so if you want to learn about them and change them. Like I said, I didn’t mess with them and my fan performs well.

Lastly, after you have finished modding everything for you bios, you want to save it. You would click the “save bios” button on the bottom (this button is a “save as” so you wont overwrite the bios you started with) and save it using a name that is easy to remember (less to remember when flashing). Me, I used something like asus.rom. Now you are done with RBE!!
Edited by thebigrobbyrob - 8/6/10 at 11:51am
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post #3 of 52
Thread Starter 
Now to flash you newly made bios onto your card.

Thanks to rocklobsta1109 for his bios flash guide (this is based off of it).

Things you need:

ATIFlash
HP disk utility: USB tool
USB Boot Files: see attachment:bootfiles
BIOS to flash to your card: The one you just made and your stock one, just in case


1. Install HP disk utility and run it. You may have to run as administrator for it to open. You want to make sure your flash drive is FAT32 and check the create DOS startup disk. browse to the bootfiles I included and add the files contained in the folder. Create the bootable volume. (alternately you can just extract the contents of the rar file to an empty Flash USB and it should work.)

2. Next you want to put ATI flash onto your bootable usb drive. Again there should be 2 files.

3. Now you want put your modded and stock bios on the drive

4. Uninstall your current graphics drivers.

5. Flash time!-Reboot your computer and boot to the usb drive. This may take some bios changing to be able to boot to it. For me, I hit F8 right after the post screen until disk boot options show up. However this may not work for everyone.

6. DOS screen appears and you have a C:\\ prompt type in atiflash -i. This should show you a list of adapters installed on your computer and their corresponding adapter number (0,1) ect.

7. To flash the card(s) Type atiflash -p 0 "biosname.rom" (without "") in my case it looked like: atiflash -p 0 asus.rom and press enter. This should begin to flash the card which was marked as adapter 0 with the selected bio's. If you run into and SSID error, restart the process and when it’s time to flash you'll need to add the -f tag to force install so it would then look like this: atiflash -p 0 -f "biosname.rom" then press enter again. It should give you a confirmation that the flash is completed and tell you to restart.

8. CROSSFIRE/5970 ONLY: if you’re flashing 2 cards in crossfire after step 7, DO NOT RESTART. Repeat the step but flash adapter 1 this time EX: atiflash -p 1 "biosname.rom" and use the -f tag if necessary.

Only once both adapters have been flashed should you restart.

Restart into windows and reinstall drivers. You should see your new clocks in CCC and GPU-Z and your new 3d voltage in GPU-Z when running something like Heaven or 3dMark in the background.
Edited by thebigrobbyrob - 6/20/10 at 6:01am
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post #4 of 52
Thread Starter 
Thank you for viewing.....I still havent figured out what to do with this post area... if you have other questions or any of the above instructions are confusing, feel free to PM me or add to the thread (I check both regularly).
Edited by thebigrobbyrob - 8/5/10 at 11:29am
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post #5 of 52
Great! Thanks man! That's exactly what I was looking for.
+rep
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post #6 of 52
Awesome guide, just what I was looking for. + rep
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post #7 of 52
Is this method also good for Asus Matrix series? Beacause as far as I know the iTracker software is saving your OC to the GPU's BIOS. THats why there is a safeboot button on the back of the card...so if you oc too much and cant start up. You can press it and the card will boot with default settings.
post #8 of 52
Thread Starter 
Quote:
Originally Posted by xpfighter View Post
Is this method also good for Asus Matrix series? Beacause as far as I know the iTracker software is saving your OC to the GPU's BIOS. THats why there is a safeboot button on the back of the card...so if you oc too much and cant start up. You can press it and the card will boot with default settings.
Hmmm....im not familiar with the Matrix series card or the itracker, but since the itracker does save the 3d clocks i dont see my method as necessary.... Are you having problems OC'n the card? Can the itracker mod the 3d clock voltage?
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post #9 of 52
Yes With the Itracker You can Mod everything, including memory TIMINGS. All voltage tweak is aveable. You have 5 Bios saves aveable....kind'a like ASUS Rampage Extreme MoBo's... I can clock in to 950/1300 no problem....Above that I still did not try
post #10 of 52
Thread Starter 
Quote:
Originally Posted by xpfighter View Post
Yes With the Itracker You can Mod everything, including memory TIMINGS. All voltage tweak is aveable. You have 5 Bios saves aveable....kind'a like ASUS Rampage Extreme MoBo's... I can clock in to 950/1300 no problem....Above that I still did not try
I would suggest then not to bother flashing your bios using the method I used. your methods seems to be working well for you.
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