Flashing a MI25 to a WX9100. Is a BIOS OC possible?

[RLX2///]

Long story short I bought a broken WX9100 in hopes of getting it working, so far I haven't been able to fix it. When I learned you can flash the MI25 into a WX9100 I decided to look into it and snagged one fully functionsl for under $70.

So now the plan is to flash the MI25 into a WX9100, and then put the cooler and shroud from the WX9100 onto the MI25. The card and the tools to flash the BIOS should be here on Monday. Now the issue is the more I read into this the more I am hearing about performance issues unless the card is overclocked and further software modifications are made...Theres only one problem with this, The card is for my Hackintosh and all of the tools used are for Windows.

So I figured it's time to ask people more knowledgeable than myself on the subject. The end result is to have a WX9100 that more or less just works as a WX9100 without needing to run extra software. I have both Windows and Linux machines I can use to run any needed software to do the work, but the modifications need to be permanent on the card so I can then use it in macOS.

I also just this morning was reading that you can also flash this into a Vega 64 FE and the results are better than flashing to a WX9100? Either way would work, pretty much every card in the Navi 10 line is macOS compatible, so I'm happy with whatever method gives the best results. Sorry if this post seems noobish, this is my first go around on something like this.

 

[DR4G00N]

The end result is to have a WX9100 that more or less just works as a WX9100 without needing to run extra software.

Then just flash it to a WX 9100 and you'll have one. The extra stuff is only for overclocking/undervolting. Bios OC is impossible as it's not currently possible to modify Vega's VBios and have it actually work.

You can also just flash the bios in Windows using AMDVBFlash, just follow the steps here: https://forum.level1techs.com/t/mi25-stable-diffusions-100-hidden-beast/194172

 

[RLX2///]

Then just flash it to a WX 9100 and you'll have one.

This is the impression I have too, until I started reading people saying they were getting performance lower than a Vega 56 along with thermal throttling issues. But if this isn't the case then I guess I'm good to go. For the workload I have, Overclocking would't really make much of a difference anyway.

You can also just flash the bios in Windows using AMDVBFlash

Thanks for the link, I actually saw the YT video for that but haven't watched it yet. I was going to look into AMDVBFlash and try it first, but for $11 I figured having a hardware flasher on hand couldn't hurt.

But if that really is all there is to it, then that's awesome.

 

[DR4G00N]

This is the impression I have too, until I started reading people saying they were getting performance lower than a Vega 56 along with thermal throttling issues. But if this isn't the case then I guess I'm good to go. For the workload I have, Overclocking would't really make much of a difference anyway.


Thanks for the link, I actually saw the YT video for that but haven't watched it yet. I was going to look into AMDVBFlash and try it first, but for $11 I figured having a hardware flasher on hand couldn't hurt.

But if that really is all there is to it, then that's awesome.

Performance at stock may be less than a 56 or at least on par. Mainly this is because the WX 9100 runs at 170W by default vs the 56/64 which are 220W. The fan profile on the WX is also biased for noise rather than performance. Though this shouldn't matter too much since all blower fan cooled Vega's are thermally limited anyway.

 

[RLX2///]

WX 9100 runs at 170W by default vs the 56/64 which are 220W.

In that case, do you think it would be worthwhile to flash it to a Vega 64? From what I understand that is also doable. Plus it would still be 100% macOS compatible.

To add to my previous reply, i know i saw a guide on using the Vega FE bios earlier this morning. It even showed how to solder some jumper wires to the display ports to get video output working correctly since apparently the connector layout is different.

it didn't dawn on me to bookmark it and now I cant find it.

 

[DR4G00N]

In that case, do you think it would be worthwhile to flash it to a Vega 64? From what I understand that is also doable. Plus it would still be 100% macOS compatible.

To add to my previous reply, i know i saw a guide on using the Vega FE bios earlier this morning. It even showed how to solder some jumper wires to the display ports to get video output working correctly since apparently the connector layout is different.

it didn't dawn on me to bookmark it and now I cant find it.

The difference would be %5 or so at the expense of it being much louder. Unless you're planning on using an aftermarket air cooler or water cooling so it's not temp limited I wouldn't really worry about it.

 

[RLX2///]

The difference would be %5 or so at the expense of it being much louder. Unless you're planning on using an aftermarket air cooler or water cooling so it's not temp limited I wouldn't really worry about it.

Honestly, your suggestion sounds good to me. I appreciate your input, many of the reddit threads and stuff on this mod make it sound so much more involved than it seems to actually be. My primary use is going to be video editing, maybe some occasional gaming. So I'm not inclined to jump through flaming hoops for 5%.