Subsystem Id of my Asus Strix RTX 4090 OC / Random GPU detection problem

[KMBakPL]

I have Asus Strix RTX 4090 OC, BIOS Version: 95.02.3C.40.FB & ID:10DE:2684:1043:8932.

So in theory its this BIOS: https://www.techpowerup.com/vgabios/262433/262433 but subsystem ID is different. How is it possible with same BIOS number?

Id like to flash this BIOS: https://www.techpowerup.com/vgabios/255698/255698 but it has also different ID.

Why I want to flash?
Short story short.
The problem is that my Asus X870E-E motherboard randomly not detects my Strix GPU. On my earlier platform (Maximus XI and i9-9900KS) this same GPU worked perfect over a year - without any problems during boot or any other.
Maybe its faulty new AM5 mortherboard but... My firend has got exact same GPU with same BIOS (but ID 10DE:2684:1043:8BEF) and X670 motherboard and faces same random problem with GPU detection during computer start. So maybe this BIOS of GPU is not compatible with AMD platform. I'm in contact with Asus but they not so helpfull to be honest.

My other firend has exact same GPU and motherboard, and CPU like my system but his BIOS is 95.02.3C.00.60 (dont know his GPU ID). And his GPU works without problems with his motherboard.
Thats why I thought that maybe I will flash same BIOS and this will help with my issue. But I dont want to brick my RTX Strix 4090 card.
Every one has other ID (last 4 digits).

So any advices?
Please help. Im on the last straight before RMA the mother board but Im afraid that after change for new one the problem wont go away. And I will stay without PC for 3-6 weeks.

When computer starts corectly with GPU initialized as it should, everything is perfect stable even in heaviest loads.

So two questions:
1. What the hell is with that different IDs? Is it safe to flash this 95.02.3C.00.60 on my card?
2. Maybe someone have some idea of my core problem, mean GPU detection problem. If somone want to deep check, I made a video:

Thanks in advance for any help.

 

[OolongGoat]

If the card worked in the other system, I wouldn’t mess with the card just yet. Ensure you have the latest BIOS for your motherboard.

Have you tried a different PCIe slot?

Also, I would set your motherboard to factory defaults.

You could have a different revision of the card. Sometimes different revisions come out.

 

[KMBakPL]

Yes. Latest BIOS. There is only one PCIe slot for GPU.

 

[DirtyDingusMcgee]

Doesn't sound to me like it has anything to do with the vbios. Card looks like it is seated wonky, but that may just be me. I'd start by defaulting mb bios, then a tear-down and rebuild.

 

[OolongGoat]

You have a PCIe slot at the very bottom of the motherboard. Doesn’t look like you’d have room, you’d have to use a riser.

Do you have a different video card to test??

What has ASUS support said about the issue??

As far as the memory training, have you enabled Memory Context Restore?

 

[KMBakPL]

Not enough place for bottom mount (case basement on the way). I haven't got riser. This bottem PCIE is also much slower.

Asus support have no idea whats going up. Its very strange that card worked perfect till platform change. Thats way I think its motherboard.
Now I'm testing my older RTX3080Ti Strix and check.
If there is no problem I need to back to RTX4090 check again.

I am surprised that there were several types of these RTX 4090 Strix OC (different ID). I don't know what causes these differences.
Strix 3080Ti OC has only one version of ID im BIOSes database.

And I clearly feel that something is wrong with the BIOS of this card, that it detects incompatibility with the motherboard (if I confirm that the motherboard works correctly with older GPU).

What a strange failure (if it is a faliture indeed), that the card sometimes does not boot. How is it possible that everything works without a problem and only when turning on/resetting the computer, a problem can occur randomly (as if the card reports too late that it is there and the motherboard continues starting and "thinks" that there is no card).
And I wonder about this friend of mine who has the same GPU BIOS as me (but different ID?!) and he also has this problem randomly...

As for memory training - it only appears when the card is not detected and again when I disable the integrated card in the BIOS after successfully detecting PCIE GPU - after saving the BIOS settings and restart, memory training starts again.
If everything works correctly (GPU detected corectly), there is no training and everything runs quickly.
Sometimes I can start the computer several times without a problem, and sometimes there is a problem with every start. And I have to turn it on several times for it to start.

I dind't try Memory Context Restore - it shouldnt influence GPU detection. Many sources warn against enabling this option (I don't really know why).

 

[OolongGoat]

It’s not about the slot being slower at this point. This is for testing purposes.

If it is working in the bottom slot as it should, that helps narrow it down to the motherboard or the video card.

Also, do you have another system handy? Your old platform still good to go?? I would use the other system to flash the vBIOS if it comes to that. With the hit or miss detection, the last thing you want is for the card to drop in the middle of the flash. That would not be good.

This the Motherboard BIOS you currently are running?

Version 1203
16.49 MB 2025/03/07
SHA-256 :0B81AA1CB0AD3DC3862CA261E4AAA93F082669D4CF0DD9B7CFF92A45CBECAD67
"1. Enhanced system performance with support for 9950X3D and 9900X3D processors.
2. Included AI Cache Boost to enhance performance and compute power when using AI-based tools.

Before running the USB BIOS Flashback tool, please rename the BIOS file (A5557.CAP) using BIOSRenamer."


Also, I have been reviewing the GPU database, your particular revision is all under unverified BIOS.

If you are going to flash to the latest BIOS, I would use this one. VGA Bios Collection: Asus RTX 4090 24 GB | TechPowerUp

The only difference is the slightly higher boost clock. Base Core and VRAM clocks are the same. The power limits are the same.

 

[KMBakPL]

I would use the other system to flash the vBIOS if it comes to that. With the hit or miss detection, the last thing you want is for the card to drop in the middle of the flash.

In the middle of flashing it wont happen - its only when computer is booting. When I was comparing BIOSes with NVDFLASH many, many times - GU disables in system and never got problem with enabling again.

I have newest motherboard BIOS.

The GPU bios you sugested is also for other GPU model. So it more unsafe then this one: https://www.techpowerup.com/vgabios/255698/255698, isnt it?

 

[W1zzard]

TechPowerUp

Extensive repository of graphics card BIOS image files. Our database covers submissions categorized by GPU vendor, type, and board partner variant.

www.techpowerup.com

these are the ones matching your id, also one in verified that i just marked as verified

 

[KMBakPL]

Only this is verified. And its same as mine.

Asus RTX 4090 VBIOS

24 GB GDDR6X, 2235 MHz GPU, 1313 MHz Memory

www.techpowerup.com

 

[OolongGoat]

Anytime you are flashing your vBIOS, it is a risk. The newer BIOS files for the ASUS Strix cards are not going to be an exact match for your particular card.

Looking over them, they all are the same. The one I linked just has a slightly higher boost clock. You may also need to adjust the fan curve appropriately.

I have cross flashed my MSI 4090 with a GALAX 4090 for playing around with the higher power limit and then put it back.