announcements Charts-EN GPUs RBE Download EN

RED BIOS EDITOR and MorePowerTool for Polaris, Navi and Big Navi

4. BIOS-Flash

Now comes the last and yet no less important step, namely flashing the newly created BIOS back onto our card. This is necessary, because the Adrenaline driver since 2020 extremely restricts the execution of the SPPT stored in the registry. Whoever sets the PowerLimit, the clock or voltages too high will be punished with a GPU clock of 300 MHz which can no longer be raised. In order to circumvent this deliberately built in hurdle, only the PowerPlayTables, which are permanently stored in the BIOS, help.

Even if the checksum is correct, you still need a signed BIOS in the normal way. Since the RBE cannot provide this, also for legal reasons, we have to use a Flash tool that ignores this signature or does not test it. Furthermore, the graphics card in question must also be technically supported. Currently, only the Radeon RX 5700 and the RX 5700 XT(X) can be flashed with the tool linked here from the WWW. For the RX 5600 XT this flash tool would have to be adapted. Unfortunately, the Radeon RX 5500 XT is still completely excluded from this tools.

You have to download the Flash-Tool linked below. Afterwards start the command line window with “cmd” as administrator. Otherwise it does not work. Then change to the directory where the flash tool and the new BIOS file are located. To be able to flash at all, we first have to unlock the ROM. This is done, shown below, with the call parameter “-unlockrom” and the adapter number (here the first graphics card found is e.g. “0”).

Then we call up the flash tool again with the appropriate parameters and start the flash process. Attention! Flashing is at your own risk and can lead to a bricked BIOS if not done properly or if interrupted during the process. In this case, only a second, additionally operated graphics card will help.

After flashing, the computer must be restarted. We can already admire the new data in GPU-Z. In this case I had set the boost clock a bit higher. Now the value is no longer 1925 MHz, but 2104 MHz. In real terms the card reaches 2050 MHz with the right cooling.

But this is only the beginning, because everyone can still do some fine tuning, because finally I have also set new limits for the Wattman


5. Checking results and overclocking in the Wattman

Let us first look at the initial situation before the BIOS flash. 1250 mV and 2039 MHz were maximum possible with GPU tuning, the power limit was at maximum +50.

Now we look at Wattman after the BIOS Flash and with a little more room in Wattman. 1250 mV at 2121 MHz and 60% power limit. However, I would like to point out again that this is not a replica setting, but only shows exemplarily what would be possible if you proceed according to the terms of use for the software.



We make this software available here as it is and also ask you to refrain from any requests to the editors concerning its functionality and application. For all feedback all readers can use the forum including the active community for free. As a publication we are only the mediator between the R.B.R.T. and the readers of our website. In addition, the tool is available for download exclusively from this website via a special installer and it’s free.

All other sources may contain unauthorized or older versions or even malware. To avoid this, digital distribution of the software available here is explicitly prohibited, especially since this would also constitute a copyright infringement at the same time. Links may only be made to this website, but not to the download links themselves, whose URL we also change periodically.

For legal reasons, we cannot and may not offer the flash software required to flash the individualized experimental BIOSes created in this way for direct download, but we do offer links to versions that have been reported to us by the community as suitable. But also here we can not take any responsibility for the content of third parties. Whoever downloads and uses these programs also does so at their own risk and within the scope of the restrictions listed at the beginning.

Whoever downloads and uses the software linked here automatically accepts the terms of use (“Disclaimer”) listed on page one! If you receive an error message when downloading or starting our installation programs for the MPT or RBE, such as messages from inappropriate antivirus software that our official and licensed installation programs with Online Downloader detect as malware, you can safely ignore this. If in doubt, you should briefly deactivate the AV software during installation.

MorePowerTool (MPT)

– added support for Radeon RX VII
– no selection in Load PPT no longer loads default SPPT
– write button no longer writes zeros into registry if no SPPT is loaded
– some minor GUI fixes

– it is now possible to load SPPT from BIOS file
– some minor GUI and bug fixes

– merged BIOS File button with Load SPPT button
– minor bug fixes

– added Frequency tab
– added save function
– some minor GUI and bug fixes

– fixed VII overclocking

– support for RX 5500 (XT)

– new icon
– PPTable features
– minor bug fixes

– curve override

– more curve stuff

– support for RX 6800 (XT)
– minor bug fixes

– TGP, TDC fixed

– RX 6900 XT, RX 6700 (XT) added
– Radeon VII bug fix
– some minor fixes

– Navi 1X SoC Powersave Freq fixed
– Minor bugfixes


Red BIOS Editor (RBE) 1.0.1 Fixed VRAM issue
1.0.2 Fixed unicode problems
1.0.3 Timings were not completely saved (VRAM issue)
1.0.4 Fixed issue with BIOS files > 512 KB
1.0.5 DRAM Timing Editor
1.0.6 Polaris Support
1.0.7 Minor Bugfixes

Navi Curve Helper

This program allows you to calculate 
the offset curve parameters to set the 
“stock” voltages your RX Navi card via MPT.


Flash Tool 2.93+ Win
Works only for RX 5700 and 5700 XT(X)

Mirror #1

Mirror #2

Flash Tool 3.04+ Win
Works for all AMD cards,
please read the instructions first!

Mirror #1 (New!)

Mirror #2

Flash Tool Linux
Works on Linux systems only

Mirror #1

Mirror #2

Danke für die Spende

Du fandest, der Beitrag war interessant und möchtest uns unterstützen? Klasse!

Hier erfährst Du, wie: Hier spenden.

Hier kannst Du per PayPal spenden.

About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

Follow Igor:
YouTube Facebook Instagram Twitter