I have a single stage I want to smack on it, but I cannot for the life of me find the PT1 and PT3 BIOS anywhere on the internet. Back when they came out I was running two of these with water cooling and PT1 BIOS and it helped a lot, og gave me full voltage control. With stock BIOS I can only go to +100mv on core and AUX, I remember these BIOS being ASUS vendor and their program could get full voltage control and bigger range on core/memory clock. Card does 1625MHz memory which is maxed out on stock BIOS with afterburner.

It has Hynix RAM.

Does anyone have these BIOS, or can point me in a direction where I can get more voltage control? I do not have the hardware to make a mod on it, and I need it by the weekend as I have a livestream coming up.

Thanks guys!

Having problems running 2 of these cards in crossfire (4 GPU's) on W7.

Each card works fine on it's own but soon as the other card goes in , nothing , won't even boot.

Any ideas guys ?

Edit...got into BIOS getting ERROR: Insufficient PCI Resources Detected ?

 In the wake of this new architecture some things have change in the amd drivers and in the rx 6xxx Bios too. As it stands right now amd has an artificial lock on the max clocks on the core and memory as you already might heard or know. This is the downside of this new video cards but hopefully not for long  as there will be software to change this , right now is in Beta testing ?

 Thanks to some in depth investigation , work and mods found by @Splave and @elmor you can now tweak this video cards using the Elmor's evc2 controller to get you higher power limit in order to maintain a more constant core clocks as the clocks on this video cards are always dynamic and not static , hence with the mod you can sustain for longer core clocks *example 2750Mhz fluctuates and bounce between 2600Mhz~2750Mhz during benchmarks because of power limit , but if moded it will sustain those core clocks closer to 2700/2750Mhz thru the benchmark , hence giving you a better score overall. Most of the time higher clocks do not mean a better score ( You need to find the higher average sustain clocks during the run of the benchmark , look at FM/UL systeminfo monitoring tool report once you have sub this to your online account at FM/UL , or just use GPU-Z monitoring and logging tool , that will give an idea of the real clocks you are able to sustain , stable , highest average ,  not fluctuating much clocks is what you should be looking for and not the highest peak clocks  )  , there has to be a balance between clocks , power limit and voltage , so keep this in mind *example 2850Mhz core clock can score lower than 2750Mhz  same with the memory , 2150Mhz memory clocks can score lower than 2130Mhz *. Find the balance , sweet spot and tweak your clocks accordingly to the score on your benchmarks ( adjust as needed , play with it , that's where the fun is ?  ) . 

*** Tip - When in the overclocking section of the driver and you punch your max core clocks you will also need to adjust the minimum core clocks  around 100~200Mhz lower than the max core clocks  ( example 2700Mhz max / 2500Mhz min ) , adjust voltages as well for the minimum clocks.***

 Here you can find a great overclocking guide and tips when overclocking this video cards , big thumbs up to @Splave and @elmor for it.

https://www.elmorlabs.com/index.php/forum/topic/6900xt-power-limit-tricks/#postid-338

*** Good news , there is light at the end of the Tunnel *** ? , as i just found out the AMD - Red Bios Editor guys are actively working on a fully, working Bios editor software to change everything possible in the Bios eg. ( clocks , power limits , voltages , etc... ) , at Igor's Lab ,  here - read post # 434 - https://www.igorslab.de/community/threads/red-bios-editor-und-morepowertool-bios-einträge-anpassen-optimieren-und-noch-stabiler-übertakten-navi-unlimited.2415/page-22#post-102478 As it stands right now they are still looking for volunteers to test this software. ( Let's see once this software is fully working who will be the first one to break a core clock of 4000Mhz , throwing that challenge out there as to what might be possible in the near future ? and who will be the first one ...

About morepowertool on Igor's lab - download here the latest version -  https://www.igorslab.de/red-bios-editor-bios-eintraege-anpassen-optimieren-und-noch-stabiler-uebertakten-navi-unlimited/  The software seems to work sometimes but many times you will find you get stuck at 500/500Mhz clocks due to amd protections , if you don't refresh/re-install the driver it will start acting very weird and sometimes bsod wish leads to a broken OS ? , it happened to me and i went thru 3 windows installations on one day , (  If that happens to you it is needed to re-install drivers and start all over again as it did happen to me too many times while testing mpt on my 6900xt. )

 If you get unstable settings on mpt and cannot boot to the OS ( black screen ) you will need to enter in safe boot into the OS and revert the changes there in mpt and uninstall the driver , then and only then you will recover from bad settings. ( I tested this for many days myself ). Morepowertool is a great software to use but you got to take it easy and work your way up to find for yourself stable settings. I was able to make a profile of an mpt file for my 6900xt working at 1.35v with 550 power limit , it did work only once, after a crash during a benchmark run the system reboot itself and i was greed it with the infamous black screen and unbootable system. Never again i have managed to replicate those settings as AMD driver seems like it takes control of it 99.99% of the time. If you get a reboot while running high clocks in the middle of the benchmark , run lower core clocks and lower v.core , revert back to stable settings as this has happen to @Splave and myself ( The driver freaks out sometimes and goes into some kind of protection mode and make the system reboot )

I want to give credit to @Dancop and @OGS for confirming the low cold bug and cold boot bug of this RX 6xxx cards , every card is different so it will behave differently on sub-zero temps ( For those that remember it's the same CB-CBB issue like the old Radeon's HD 6970-HD 6950 TeraScale VLIW4 Architecture all over again ). My own 6900xt has a very low cold boot bug around -46~50c. Other cards have more or less this same problem with cold boot bug give or take 10~20c. Cold bug as reported by Dancop and OGS is around -100c give or take.

*Weird mpt behavior and settings* - This were the settings that worked for me only once with mpt and i have not been able to replicate this ( not sure if it was working 100% either ) - I used the AMD driver overclocking software with this settings for overclocking the graphics card , v.core 1.20v / 550 power limit 2850Mhz core clock. As it stands right now the most common overclocking software used for AMD cards do not work yet , ie ( msi ab , OverdriveNTool , etc... ) . Some of the motherboard vendors have working overclocking software designed specifically for their own brands that somehow works but not fully. It is highly recommended to use the built in overclocking software in the driver as it is the best to use at this moment. Bare in mind this is a complete new architecture and there is only 3 drivers available for this cards , hence i expect for things to get much better once more drivers are out from AMD and we have Bios flashing software available as well as a more stable morepowertool.  The Red Bios Rebellion Team at Igor's lab is working hard to get this software working as soon as possible. 

 If you have something to add , share experiences , tips , tweaks and tricks i encourage you please post it here on this thread. It is a challenge to find all this alone hence sharing is the only way to help each other.

Enjoy it !

....I managed to  OC my 6900XT to 2260MHZ. Anything above that seems to cause slight instability. I know Morepowertool unlocks the power limit for the GPU but does anyone know how I can get more power to the Vram?

Here is a recording of my 6900Xt with OC Vram:

Translated with www.DeepL.com/Translator (free version)

Debug log

LOG START at 2022-01-10 21:26:20 ----------------------
HWiNFO library for extended hardware detection successfully loaded.
Could not open file handle for loading options file!
Could not load options from file!
Timer initialization:
QPC is available
OS detected: Windows 8 or higher
CPUID: AuthenticAMD (Family: 15, Model: 1, Stepping: 1)
CPU detected: AMD
Mainboard model detected: X470 GAMING M7 AC (MS-7B77)
RTC is not safe to use on this system!
Timer: HPET (14.32 MHz)

CUDA is not supported on this system (Error: CUDA driver version is insufficient for CUDA runtime version)
CUDA devices initialised:
 => no devices found.
OpenCL GPU devices initialised:
 => no devices found.
OpenCL CPU devices initialised:
 => AMD Accelerated Parallel Processing 1.2
    - AMD Ryzen 7 1700 #1 (16 CUs, 2994 MHz, OpenCL 1.2) (PCIe: undefined)
 => AMD Accelerated Parallel Processing 2.0
    - AMD Ryzen 7 1700 #2 (16 CUs, 2994 MHz, OpenCL 1.2) (PCIe: undefined)
OpenCL Accelerator devices initialised:
 => no devices found.

The card is Power Color Red Devil 6800xt
 

All insight to the matter is highly appreciated!

Thanks.
Kel

edit. added card model.

What does the batch and resolution matter?
Thanks

Stuff to be aware of

My reference card didn't have either CB or CBB so I ended up running full pot. However I do suspect that my mounting might have failed at some point in time because I was clocking a little low and because I couldn't use the backplate for my Raptor 4 due to it conflicting with my extra cap placements.

If you can get into BIOS but not into windows then you need to go into safe mode and reinstall the drivers because Wattman remembers your last unstable OC and is trying to boot with it(praise AMD! /s). If you have an SSD and a clean setup this should not take too long.

- Stuff to use to overclock.

As of right now Elmor's LN2 BIOS + GPU Tweak II is the best for voltage control and clocks since it goes to 4Ghz core and 18Ghz mem as well as 2V on the core(not that you will ever reach any of those). At 150% power limit the BIOS gives you a 450W power limit.

- Display going black when running benches.

The card has black screen issues. If you push it really low(like say the -178C that I ran at according to my dodgy equipment) with high core voltage you will lose the display. The benchmark is still running you just can't see it. In theory this should be solvable by putting more volts on the .95V rail but I can't figure out how to Vmod it yet. Once I do I will test. To see if the card is running you when blackscreened you need to use a DMM on either Vcore or Vmem as either will show the impact of 3D load. For me mem would hit 1.571V under load and idled at 1.551V.

Overclocking

- Core overclocking

I could run windowed 3DM firestrike 1280x1050(IIRC not sure about the resolution) at 1600mhz however my best pass of Firestrike proper was only 1550mhz. Neither more Vcore(tested 1.4-1.6V) nor cold did anything. I suspect I may have just had a bad mount or something which caused these problems. Once I bench again I will know for sure. It is also possible my card just doesn't scale at all.

- Memory overclocking

The Samsung memory on my 8GB reference card seems to absolutely hate cold and voltage. I modded my card for 1.72V mem. That didn't help OCing at all. I also tried more VCCI(the voltage in the memory section of Wattman) that also didn't help either and led to the second driver reinstall I did in my session with the card.

The card could pass benches at 9Ghz mem on ambient. With the PCB freezeing through I was fighting for 8.5Ghz so I guess the RAM didn't like the cold either. The 4GB Hynix cards are probably a better choice for pure clock speed on cold IDK about performance someone would need to do a test.

BTW here's the memory voltage mod for reference PCB cards(it should be compatible with all card using the GS7256 controller):

http://i.imgur.com/fZz3lPz.png

My issue is with a HD 2600XT Gddr4 Pcie version card that hits a wall at 857Mhz on the gpu, I have heard that the Amd tool can bypass the limit in the bios.

Any help would be greatly appreciated.

I have a couple of Sapphire Tri-X OC 290s that are able to run 1300/1600 on water, but AB/ABX/Trixx will not allow me to set higher than 1300 on the core. Memory can go up to 1645 iirc.

I have not tried BIOS flashing as of yet, or tried to unlock cores as I was hoping to get the software side of things solved first. I have a DICE/LN2 session coming up after Christmas and I'd love to be able to push these cards past 1300/1600 and do some benching.

I have heard that there may be a way to modify the BIOS to push past the limit that AB/ABX/Trixx set, but I have not done this as I'm not sure what to modify in the BIOS and don't want to screw anything up.

Hardware is A10-6800K, Asrock FM2A88M Extreme4+ and Sapphire Ultimate passive 7750.  Monitor is some BenQ thing connected with a passive HDMI to DVI adapter cable (HDMI on the system, DVI on the monitor).  If any hardware other than that affects it, I'm quitting OC.

1. Set system up with iGPU, no 7750
2. Configure bios with PCIe graphics as default but iGPU explicitly enabled, share memory set to 2GB
3. Make fresh install of Windows 7 64-bit SP1, using a flash drive that was created with the asrock USB driver injection tool for AM4
4. Install Catalyst Omega 14.12 (downloaded from guru3d, filename "[Guru3D]-amd-catalyst-omega-14.12-with-dotnet45-win7-64bit.exe").  Custom install was chosen and everything but the driver, CCC and mandatory components (I think only the install manager was mandatory) was unchecked.
5. Install 3DMark06, CPU-Z 1.90.1 and GPU-Z 2.27.0
6. Run 3DMark06 4 times testing different memory settings
7. Notice a weird drop in CPU score, install furmark and copy portable prime95 and hwinfo64 onto system to check if there's power/thermal throttling
8. Try to start hwinfo64, it complains it needs KB3033929 for driver signing, install KB3033929.
9. Spend 2 hours banging your head against the wall trying to figure out why CPU score keeps getting worse (THIS STEP IS MANDATORY)
10. Set up k15tk (it needs winring0 dlls so I unzip throttlestop 8.70.6 then move the k15tk exe into the throttlestop folder), try to use that to force max pstate
11. Realise that asrock boards need turbo core enabled and no it won't interfere with your oc, re-enable turbo core
12. Do a couple more 3DMark06 runs
13. Set memory back to stock, power off system
14. Install 7750, move HDMI cable from motherboard output to 7750
15. Power system on.  Open the detailed 'found new hardware' information, wait patiently for it to all run and finish.
16. Reboot, wait patiently again
17. CCC pops up after a minute or two with dual graphics configuration

Hopefully this helps.  I imagine it can probably be boiled down to:

1. Install OS and drivers on iGPU
2. Spend 2 hours banging your head against the wall trying to figure out why CPU score keeps getting worse
3. Install 7750
4. Let windows auto-install 7750 drivers, be patient

It's also worth highlighting that nowhere in this steps is any OS stripping/optimisation.  That comes later...

Photo gallery:

STRIX FURY X MOD

Thx to tx12 OCN wizzard we can push Fury cards even higher!

LINK TO THE ORIGINAL THREAD/TOOLS

I will later upload modified LN2 bioses for Asus R9 Fury Strix card

Stock (3584 Shaders/224 TMU)

3776 Shaders/236 TMU

3840 Shaders/240 TMU

Fury "X" 4096 Shaders/256 TMU

Fury "X" 4096 Shaders/256 TMU OC on air - still has some potencial despite unlocking units - TESS OFF

VOLTAGE MODS

Note that all you are doing on your own responsibility and volt mods void your warranty, same as flashing unlocked bioses and so on

1. Enable HOTWIRE soldering points, do it as in my picture, don't connect HOTWIRE LN2 pads! cause it will trigger 0.95v rail OVP in drivers

2. 0.95v Rail mod (after the mod stock will be around 1.06v)

3. Trimpot/hotwire VGPU, VMEM, VPLL (VDDCI) mods

My card after modding:

GPU POT MOUNTING

Note that Fury has different mounting holes - they are even bigger than old huge G80 mounting. I used modified G80 mounting from Kingpin TEK9 6.66 Fat Pot and it worked perfectly.

SOFTWARE GPUTWEAK 2 TIPS:

1. After flashing LN2 bios you gain VGPU regulation up to 2.0v

2. Don't forget to use "Overclocking range enhancement" if you want to have memory frequency control.

LN2 TIPS:

1. Use HDMI port (I used it with HDMI - DVI adapter), on my card screen is blinking on DVI after 0.95v rail mod. HDMI port is fine even at -180*C.

2. If you can't enter OS at certain temperature - lower 0,95v rail (E.G. from 1,25v to 1,2v).

3. 0.95v rail set to 1,25v should be enough for -120 -160*C range.

4. With lower temperature (-50*C and more) you have to use higher VGPU to boot into OS! I had to use around 1.35-1.5v (stress) to boot into OS, it will be around 1.1-1.15v idle (stock is 0.9v in idle).

5. You can set by trimpot/hotwire VGPU OS "boot" voltage and later raise it by GPUTWEAK - it works.

6. 1000 MHz HBM (500 MHz is stock) is current maximum frequency which we can set. For that I had to use 1.55v VMEM (stock is 1.35v). Note that on some cards score might be lower with too high memories.

7. My card doesn't have CB or CBB.

8. PWM is strong, 1.6+ VGPU wasn't a problem with a delta fan on it.

9. Use stock PLL (AUX - VDDCI). Higher gave me nothing (stock is around 1.0v), 1.2+ can kill your GPU.

BIOSES AND SOFTWARE

Stock Fury and Fury X bios have COLD SLOW bug below 0*C (3D mode doesn't work), you need a special BIOS with a fix. For now I used Fury X (ref) LN2 fixed BIOS but it works on Fury Strix cards.

UPDATE:

Note that LN2 Fixed bioses have disabled monitoring of temperature, you can flash it and try on air and it won't kill you card, but you will be playing "blind".

AIR VGPU UNLOCKED UNLOCKED BIOSES:

STOCK BIOS

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/Furyairunlock/stockln2furystrix/furystrix.rom

3564 / VGPU CONTROL

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/Furyairunlock/stockln2furystrix/bios.rom

3776/VGPU CONTROL

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/Furyairunlock/stockln2furystrix/bios_4high.rom

3840/VGPU CONTROL

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/Furyairunlock/stockln2furystrix/bios_4low.rom

4096/VGPU CONTROL

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/Furyairunlock/stockln2furystrix/bios_all.rom

FIXED LN2 BIOSES:

3564

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/biosesln2/furystrix3564ln2.rom

3776

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/biosesln2/furystrix3776ln2.rom

3840

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/biosesln2/furystrix3840ln2.rom

4096

http://www.oclab.pl/art/xa//EXTREMEOC/furystrix/biosesln2/furystrix4096ln2.rom

ATIFLASH 2.71

1. Use only ATIFLASH in CMD (WINFLASH corrupts UEFI mode)

command: atiflash -f -p 0 bios.rom

LN2 results

Quick test just to check all the mods and behaviour on cold. From what I know some cards should easy do around 1600 MHz. Most likely limit will be similar to R9 290X cards .

Locked stock shaders:

Fully Unlock

Card is a great fun. Very easy, issues free. Everything works, software (GPUTWEAK 2), drivers and so on. Thx Asus for that great card! I hope we will see a lot of results on it

All of this wouldn't be possible without Asus R&D support (Jon, TL) and tx12

je dois vmod une asus R9 280X directcu II mais je ne trouve pas d'infos

svp

Is there any workaround to make LOD tweaks working on AMD card for DX10 and higher?
Have spent hours to search & trying.

Thank you all..!

I was running a few benchmarks after I got my RX 480 8GB (reference) to see the performance compared to people who had the same card.

*

But I am getting lower scores than people with the same card (using the same clocks), as an example, this is what I got running Vantage at 1415/2150MHz:

AMD Radeon RX 480 video card benchmark result - Intel Core i7-3930K Processor,ASUSTeK COMPUTER INC. SABERTOOTH X79

*

A guy on hwbot using the just about the same clocks got over 52k graphics score!

That is a difference of 7000 points in the graphics score!

*

I even made a fresh installation of W7 and W10 but it didn't help. I tried using the same drivers as him but it didn't make a difference.

This lack of performance is in every benchmark I made, including 3DM 11 and Firestrike.

What could be wrong?

Thank's in advance