Cips are:

Red - dot: MX IC 25L512E MI-10G
Green - dot: MX IC 25L512E MI-10G
Last one: 3170A PFGG

Red and green each 64kByte SPI flash. Maybe one is needed for NVRam but with a 32 kB bios there would be enough room for that on the same chip.
All three Dos Flash.exe are different versions. Did you use always the same flash program? Maybe they're 'wired' to specific addresses/ chips? It's not very likely but maybe worth a try to use the flash.exe provided in the specific folder and flash legacy and Uefi after each other with the corresponding provided flash?

Your backup is a normal legacy bios 0.96.00 as far as I can see. Your mainboard bios is 'easier' there is just one legacy rom and one Uefi driver for AST2400. But "playing" with your boards bios does by no means guarantee success and there's always a chance to brick it... Maybe Lost_N_BIOS has an idea?

What is the reason that you want to update, by the way?

@lfb6 - He said at post #6 that he flashed in uefi_2300_396.rom, but "no picture at boot with Video mode legacy" (This vBIOS = Llegacy + UEFI vBIOS) - that is why I think actual BIOS settings may need changed, CSM enabled/Disabled, or option rom settings changed as mentioned.
But, he now agreed with you, so I'm still confused - which is it, did he flash this vBIOS to graphics card as he said he did, or not?

I also assumed he meant he was flashing this into a graphics card? Is that not what's going on here? If not, and this is going into the motherboard BIOS, then I definitely want to see the board BIOS for this too.
I would do that too, even if this does not involve motherboard BIOS, update it's vBIOS/GOP modules. Aside from this other stuff, if may help as well, but depending on BIOS settings and vBIOS used, BIOS settings will need to be adjusted

@raun0 - yes, please update to latest BIOS before trying to address this any further, if you are using old BIOS now, this issue may be fixed in new BIOS. Is the above link your correct BIOS, before I download to check the default settings?

@Lost_N_BIOS Yes, we talk graphics card bios.

The combined legacy/uefi file (78kB) and the Uefi driver with header have the same name. The SPI is 64 kB and he confirmed that he couldn't flash the 78 kB file so I'm pretty sure he flashed just the Uefi driver with header from the folder UEFI_ROM. With this module he had video on boot in UEFI mode but not in legacy mode, so that's pretty conclusive.

I assume so, about the vBIOS. Sorry then, I misunderstood your post at post #6, sounded like you flashed in the file I mentioned above (uefi_2300_396.rom) and it worked, you said it did but no video in legacy?
UEFI Driver and or w/ header has nothing to do with this, as far as what I am talking about. I am only talking about the vBIOS file >> uefi_2300_396.rom << you said you flashed this to the graphics card, correct? And then video only worked in UEFI Mode, but no image in Legacy mode, correct?

No video in legacy mode does not conclude anything, that could be stopped by motherboard BIOS settings (if all set to UEFI only), that is why I asked for your boards BIOS or for you to confirm the link lfb6 posted is the correct board so I can check the BIOS settings.

Sorry @lfb6 - obviously I thought it was raun0 I was replying to

Comfirmed with other motherboard ( Asus Z97-PRO GAMER ) that with uefi_2300_396.rom there is NO picture or access to BIOS/UEFI when CSM enabled. Of course picture comes when entering the OS.

Why there is two chips, but no room for combinated vbios?

Did you test CSM disabled too? Also, no matter if CSM enabled or disabled, you need to also have boot option priorities set to UEFI + Legacy if you want to be able to use both, normally this is default to one or the other for video , that is why I said BIOS settings need checked too.
Here is the settings I mean, in your Asus Z97 Pro Gamer, still need your other board BIOS to check to show you where those are for that system


Also, some motherboards BIOS, the vBIOS needs updated, or you get what you mentioned, nothing until OS loads (Same for some vBIOS on graphics cards, nothing on screen until BIOS, until updated, some never, depending on the vBIOS)

This vBIOS you flashed >> uefi_2300_396.rom << Is both legacy and UEFI (Combined) already

Zitat von Lost_N_BIOS im Beitrag #22

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This vBIOS you flashed >> uefi_2300_396.rom << Is both legacy and UEFI (Combined) already

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Zitat von lfb6 im Beitrag #17

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What is the reason that you want to update, by the way?

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@raun0 - sorry, I didn't realize any other files had that same name, I was only looking at the file in the vBIOS+UEFI folder (as we should be) = 77kb file - sorry, didn't know they'd use two files with same name, what's wrong with them!

Please link me to your motherboard BIOS. If you can't fit the combo legacy/UEFI vBIOS on there, then you have no choice but to pick one or the other, then set BIOS accordingly and those settings can be saved/locked in as the defaults so on BIOS reset or clear CMOS nothing would be changed.
Or you can solder in larger chip

Zitat von Lost_N_BIOS im Beitrag #25

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@raun0 - sorry, I didn't realize any other files had that same name, I was only looking at the file in the vBIOS+UEFI folder (as we should be) = 77kb file - sorry, didn't know they'd use two files with same name, what's wrong with them!

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Thanks @raun0 Here is the settings I was talking about, Legacy is set for both places, and neither of these have "Both" option. Can you see these settings in BIOS? If not, I can make visible for you, or I can leave hidden and hard set them to whatever you want (I assume UEFI, correct?)


Some others that can be set to legacy/UEFI "both" like "Boot mode select" in the "Boot section" is set to Dual already, but then further in the video settings are locked to legacy by default
More confusing, inside boot at BIOS features, for VGA there is EFI Only, so this would conflict with the other settings, poor BIOS engineering at it's best here!
I think this only applies to bootup logo though, like you mentioned nothing shown at post with Legacy - Auto = Legacy here, based on the help string explanation.