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BIOS wanted - XFX Speedster MERC319 RX 6800 XT Black edition

theborv

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Hi. Could someone upload the BIOS from their XFX Speedster MERC319 RX 6800 XT Black edition card? Manufacture product code is RX-68XTACBD9

I am picking up the XFX Speedster MERC319 RX 6800 XT Core edition today, with manufacturer product code RX-68XTALFD9 and want to flash the bios with the bios from RX-68XTACBD9.

The only difference between the two cards is:
core: Core clock 1825 MHz / Boost clock 2250 MHz
speedster: Core clock 1900 MHz / Boost clock 2340 MHz

Should be doable, yes?

EDIT: Looks like this is the one: https://www.techpowerup.com/vgabios/227337/xfx-rx6800-16384-201114

Has anyone done this kind of flash?
 
Last edited:

Oblivionxt

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There is an easier and actually better way to get a little more performance from your card. Sadly AMD has locked most bios settings so flashing and overclocking do the same thing.

You can do that flash, but it's really not necessary.

So, once you've set the core frequency higher in the Radeon settings, you can raise the power limit of your card using the More Power Tool from Igor's Lab. So far, these are the only settings that can be changed in the BIOS that can't be done with Radeon software.

I'd recommend not exceeding the highest 6900 xt limits I've seen from XFX, which are:
PPT: 281 W GPU: 320 A SOC: 55 A

Eventually more mods might be found, AMD has severely limited everything to the point it can actually affect even normal users who do minimal overclocking.
 
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Hi. Could someone upload the BIOS from their XFX Speedster MERC319 RX 6800 XT Black edition card? Manufacture product code is RX-68XTACBD9

I am picking up the XFX Speedster MERC319 RX 6800 XT Core edition today, with manufacturer product code RX-68XTALFD9 and want to flash the bios with the bios from RX-68XTACBD9.

The only difference between the two cards is:
core: Core clock 1825 MHz / Boost clock 2250 MHz
speedster: Core clock 1900 MHz / Boost clock 2340 MHz

Should be doable, yes?

EDIT: Looks like this is the one: https://www.techpowerup.com/vgabios/227337/xfx-rx6800-16384-201114

Has anyone done this kind of flash?
Please don't use this bios. :eek:
You will brick your card because this bios is saved with GPU-Z and has only half the size of a real 6800XT bios.
This file is 512kB but the real bios is 1024kB.
Therefore if you flash this you will brick your GPU with 100% certainty.
People on other forums tried and bricked their cards.

By the way you don't need to flash the bios to get setting of higher power limits. That can be done easily by using More Power Tool.
You really don't need to flash the other bios.
All bioses until now have same voltage limits and frequency limits so it does not bring any advantage.
Mostly fan profile and power limits are different and these you can done with More Power Tool (MPT).

You can read more about tuning your GPU at the Owners Club pages.
There are many users there like me who tune their cards without any need to flash new bios. :rolleyes:
I have pasted lot of details from my tuning there on page 4, 5 and 6.
One can achieve nice things by tuning these 6800XT cards.:D
Many cards have lot of potential.

 
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theborv

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Thanks for your replies. Just wanted to check in and let people know what I did.

I haven't flashed. I posted this thinking it would be an easy permanent solution, but it is really a long time ago this was the thing to do. I guess I was still under the spell of older days. :) I just used the Radeon software to overclock and undervolt my card. It's running stable at 2600Mhz with a 150 undervolt from 1150 to 1000. I had it undervolted to 990 for a little while, but had the occasional crash in some games. 1000 seems 100% stable. I haven't tried to push it any further on the clock speed as I was very happy with 2600. I can probably push it more with a higher voltage, but I like the thought of undervolting it and still having overclocked it. What a great surprise that was. Temps never go above 64-65 degrees (have a very quiet fan profile set up) when testrunning with furmark or playing games. I am very happy with my card, and will stay clear of flashing any bios!

This card is really great. Be aware that it's really long, 340mm, so make sure your case has room for it. I have a Corsair Cube 540 and had to move the front facing case fans to the outside of the frame. The front cover fits just right with the fans in this place. I moved the airfilter to the inside, as it's using magnets for attaching. Worked out really well. I had ordered the card before I realised just how long it is, so I was lucky!

Also, I came from a 3090, as I got hold of one, but wasn't comfortable with the cost, and wanted a more sanely priced product. Got rid of the 3090 with a solid profit too. I am really happy I went with 6800 XT over a 3080, as I was never quite happy with the idea of just 10GB in the 3080. Ray tracing wasn't high on my list of things I really wanted, so 6800 XT looked like the better deal. Seeing the 6800 XT beat the 3080 in so many ways in several tests out there made up my mind, and with this overclock it defenately beats the 3080. That milage will obviously vary as there is probably overclocking headroom on the 3080 as well. But I think I got a good chip on this particular card with a 2600Mhz overclock, and might not have been so lucky with another card. This 6800 XT runs only 300 points short of the 3090 I had in the 3D mark Time Spy Extreme test.
 
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Yes many of these 6800XT can undervolt and overclock very well.
I have mine set to 2675MHz@985mV in Radeon SW with some extra power allowed in More Power Tool (275W and 310A TDC).

I get in games upto 2640MHz real frequency and power consumption in games is below 300W total even with this high frequency.
It does not usually us the extra headroom of power that I allowed in MPT except in Benchmark tools like Time Spy.

By the way there is a Tool that can save proper bios size of 1024kB.
It also allows to flash bios.
I found it in another forum but did not paste it here as it is dangerous especially if somebody downloads these 512kB bioses from TPU and flashes their card leading to bricking their cards.
If one can get 1024kB version of bios from other users, it can be flashed without bricking the card.

In Igor's lab forum the are some threads about this in RBE (Red Bios Rebellion) section. ;)
 
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