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Subsystems IDs mismatch error

L

LordSmackAlot

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May 14, 2020
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Hey guys,

I am trying to do the Vega 56 to 64 flash from a MSI Vega 56 Air Boost OC , this card: https://www.techpowerup.com/gpu-specs/msi-rx-vega-56-air-boost-oc.b5102
and I have the 64 Bios for the Vega 64 version of the same card from Techpowerup.

However, I keep getting this subsystems IDs mismatch error. I saw some earlier posts about how to do this from dos CMD prompt but I am using the latest version of AMD Flash which is "amdvbflashWin.exe version 2.93 which I believe is the latest version. I have seen other people just do this bios upgrade from the exe program instead of dos and it seemed to go smoothly.

Has anyone done the upgrade from 56 to 64 on this card? they both have the Hynix Ram. Any thoughts? I would really appreciate the help.

Thanks, Simon
 
I believe you need to use the dos flash utility to use the unlock rom cmd and the force cmd with a mismatch
 
Use command prompt flash instructions from this thread.

Make sure the BIOS you're flashing to supports the same memory chips as the original. Don't forget to create a backup first.
 
Thanks for your advice here, so what you are saying is that the exact same MSI card, (the 64 instead of the 56 that I have) may not have the right bios for me to do the 56-64 upgrade?

Thanks very much
 
What i'm trying to say is that "Subsystems IDs mismatch" is normal when crossflashing, and you should use amdvbflash from command prompt with the force (-f) switch.
 
I thought MSI airboost is only "flashable to 64" if Samsung memory is present, but I could be wrong. You have the Hynix version, so I am not sure successful flash is an option.
 
Not familiar with the entire MSI Vega lineup. But the BIOS you're crossflashing to must support the memory chip your card have, or the card will be bricked. If there no MSI Vega 64 with Hynix, you can try crossflashing to another vendor with similar memory, display outputs and power configuration.
 
Ok, so how can the card be bricked if I have clicked the bios switch to bios 2, with bios 1 still the default. Can't I just switch back to bios 1 and boot up? If there are two bios' on the card, how can it (technically) ever be bricked? Sorry for my latent noobishness at this.

IZkose here is the card I am running which has the Hynix ram and here is the 64 of the same card I am trying to upgrade to which has the samsung ram as you can see from the two pictures. So Regeneration, it is impossible to upgrade from Hynix ram to Samsung ram and need to look for an equivalent 64 card that has the same ram as the 56? Sounds very complicated.

https://www.techpowerup.com/vgabios/207056/msi-rxvega56-8192-180316 (56) Hynix ram

https://www.techpowerup.com/vgabios/201941/msi-rxvega64-8192-171212 (64( Samsung ram

Update, I cannot find one Vega 64 in the techpowerup bios download list that has Hynix ram. They are all Samsung. If anyone knows of other cards please let me know.

This guy recons he flashed his Sapphire Nitro 56 with Hynix ram to the same version of the card but 64 that I know only has Samsung ram, so it seems possible.

https://www.reddit.com/r/Amd/comments/a6eqaa
 
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Ok, guys just a little update and two issues:

(1 is the default bios switch (the one you can't flash) toward the back of the card or toward the fan? In a post on this site with instructions for how to do this, the poster said the flashable bios is no 2 in the direction of the fan, other people have said it is card specific! I can't find anything on the MSI website about this

(2 I must be doing something wrong, but I know how to use CMD prompt, but when I do this with amdvbflash from command prompt with the force (-f) switch it just brings up a whole bunch of text describing the the gfx card's bios but not process by which to flash it. Thoughts?

Thanks
 
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