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Asking before I mess up

FlashfireFist

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Apr 9, 2025
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Hello, this is my first post here and I'm trying to not be stupid

I've been seeing a lot of 9070 to 9070XT vbios flash videos and posts, as well as finding quite a few 5700 to 5700XT vbios flashes
I have a MSI trio X 6800, which I actually got while wanting a 6800XT as part of a big mistake I did, needless to say I've been lamenting my decision
and wanting to get the XT for a very long time now which is partly why I am finding it difficult to convince my brain not to try messing it up...

My card runs pretty cool pretty much all of the time, I rarely see it even touching 50 degrees Celsius while pulling 130w and running at 2450mhz and 2100mhz memory clock, it can do 2600mhz for a little less than an hour before crashing, I think I could get a whole lot more out of it with a 6800XT vbios flash, but I'm not sure how risky this would be and I haven't found a single person that has done it before... Everyone says it's not possible that's why I am making this post.

What the valid thought/action process on this issue?
 

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It won't flash to an XT....

Try MPT instead.
 
Reports of a GPU this old getting "polished" into an XT would've been all over the web. There's no way and, as @ShrimpBrime says, use MorePowerTool for the task. Increase power and current limits and then hit 2600 MHz on that die (might also tweak some other frequencies but that's 50/50, not all 6800s can do that). Besides selling this 6800 and buying something faster it's the only thing you can do to make your GPU performance higher.
 
Changing the BIOS doesn't change your card, and it's impossible to flash a BIOS without a hardware BIOS flasher on 6000-series and above, so unless you know what you're doing and have (or are willing to pay for) the hardware flasher, forget it. MPT will increase your power limit, but if you're already crashing at 2600MHz before hitting your current power limit, then it's pointless. Even if you throw 20% more power at it and boost the voltage to hit 2700MHz, that's only going to get you another 2-3% game performance, and I'm not sure you'll even notice that.

What games at what resolution make you unhappy with the 6800, exactly? Buying something faster is actually quite difficult right now. 50-series is unobtainable at reasonable pricing, as are both 9070 models. The 7800XT is readily available but only about 20% faster than your 6800 so probably not worth the upgrade hassle. A 7900XT is worse than, and more expensive than a 9070XT, lacking the RT performance and FSR4.

I'd just hang tight for now, keep your eye out for a 9070XT at MSRP and sell your 6800 if you get one.
 
Not worth your time, leave the card alone
 
MPT is currently locked for me and I'm in the process of troubleshooting making it work.
Try some much older driver sets with MPT maybe like 22.11. Some newer than this drivers may work (23.xx??). Install driver only no AMD OC software. DDU the new/er drivers off first obviously. To add a touch of performance, a couple extra on the IF.
 
MPT is currently locked for me and I'm in the process of troubleshooting making it work.
Have a chat with igors lab, come back in 6 months, stuff is too new to muck with.
 
Are you not satisfied with the current performance?
 
It wont flash to an XT pretty much guaranteed I bet. Just leave it alone, try UVing or OCing to your needs. Sounds like a overkill cooler, so you got room for a decent OC. Theres guides for RDNA2 cards out there to follow of course (I dont have any hands on experience with RDNA2 yet so I can't really recommend specifics though.)
 
It wont flash to an XT pretty much guaranteed I bet. Just leave it alone, try UVing or OCing to your needs. Sounds like a overkill cooler, so you got room for a decent OC. Theres guides for RDNA2 cards out there to follow of course (I dont have any hands on experience with RDNA2 yet so I can't really recommend specifics though.)
Card tops out without additional power. AMD hard locks via driver level. Thus the hack was born. If I read the articles correctly, AMD may have offered legal actions as punishment. The project is scrapped essentially. There's only so much you can do before infringing patent hardware and software. Not allowed to alter, mangle, disfigure, disassemble, replace, configure or any other imaginable thing to either soft or firmware without possible threats. No 3rd party drivers. No nothing that constitutes the card and the software in it's entirety as actually YOURS.

Back in the day, Do what ever you wanted. More voltage, oh just move the slider. Burn the card, the discard warranty. You broke it, your Fkn problem. Everything is bitch mode these days. Can't OV my card? It's mine, give it to me. You people should really be fighting it honestly.

Nope. No really cool bios mods for you. It's all encrypted. lock down. It's THEIR gpu product. Not yours. ;)
 
Try some much older driver sets with MPT maybe like 22.11. Some newer than this drivers may work (23.xx??). Install driver only no AMD OC software. DDU the new/er drivers off first obviously. To add a touch of performance, a couple extra on the IF.
I managed to get it to work on 23.4.1 and I got the card to pull 264w but it's not using more than the default 1025mV, I am currently trying to get Afterburner to work cause it's not letting me edit anything on the card when I DDU>23.4.1 Driver only>MPT, same thing with 23.2.2 and trying an older version of afterburner yields the same results as well.
It works fine with a fresh driver install but the moment I change anything on MPT afterburner doesn't respond.
Are you not satisfied with the current performance?
It's not as much dissatisfaction as it is pure boredom and curiosity...
 

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You don't wanna follow this up with a Halp, my card is bricked thread. Just sayin...
 
Hello, this is my first post here and I'm trying to not be stupid

Then don't do it.
 
Update: through MPT I've successfully loaded the 6800 XT settings, except now the only issue is that the core clock is limited to 650mhz........
1744256263406.png
 
I managed to get it to work on 23.4.1 and I got the card to pull 264w but it's not using more than the default 1025mV, I am currently trying to get Afterburner to work cause it's not letting me edit anything on the card when I DDU>23.4.1 Driver only>MPT, same thing with 23.2.2 and trying an older version of afterburner yields the same results as well.
It works fine with a fresh driver install but the moment I change anything on MPT afterburner doesn't respond.

It's not as much dissatisfaction as it is pure boredom and curiosity...
Yeah, just another deal to sort out. I don't recall having this issue before. AF being strange like that I mean. You're doing a PC restart after applying the MPT settings right?

Also, you don't need more volts to pull more watts. Amp pull goes up usually. VxA=W
 
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Honestly, when you start off with "Hello, this is my first post here and I'm trying to not be stupid". Chances are, you are doing something stupid.

Trust your first instinct, don't do it.
 
Yeah, just another deal to sort out. I don't recall having this issue before. AF being strange like that I mean. You're doing a PC restart after applying the MPT settings right?

Also, you don't need more volts to pull more watts. Amp pull goes up usually. VxA=W
Managed to sort through all the issues, I fixed AF being like that by unchecking "Enable low level IO driver" and rebooting, and I cleared the Core clock being stuck to 650 by going to the core voltage curve and raising the sliders. My scores went from 11k (default stock settings) to 15.3k (6800XT vbios import to MPT) on furmark. Just trying to find a sweet spot to hit 2550mhz+ without crashing now!

Edit: I just realized that the fix to everything being greyed out on Afterburner is simply using DDU and not installing and drivers after... You can still change the settings through Adrenaline after using MPT
but AF will all be greyed out.
 

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Managed to sort through all the issues, I fixed AF being like that by unchecking "Enable low level IO driver" and rebooting, and I cleared the Core clock being stuck to 650 by going to the core voltage curve and raising the sliders. My scores went from 11k (default stock settings) to 15.3k (6800XT vbios import to MPT) on furmark. Just trying to find a sweet spot to hit 2550mhz+ without crashing now!

Edit: I just realized that the fix to everything being greyed out on Afterburner is simply using DDU and not installing and drivers after... You can still change the settings through Adrenaline after using MPT
but AF will all be greyed out.
Good stuff! Happy you figured it out. Enjoy :)
 
Is it normal to have these temps??? I am trying to get to 2600mhz but I think I'm being temp throttled pretty bad for some reason
 

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Is it normal to have these temps??? I am trying to get to 2600mhz but I think I'm being temp throttled pretty bad for some reason
Yes 110c junction is GPU die hot spot. If you're really bored, do a repaste to bring the temp down.
 
Leave it alone. I don't want to see a new "messed up VBIOS" thread once again after the millionth time. :D

Is it normal to have these temps??? I am trying to get to 2600mhz but I think I'm being temp throttled pretty bad for some reason
Undervolt. That's the first thing to do with Radeons.
 
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