Hi,
I have this Intel T440BX motherboard with Pentium 3 500Mkz (Katmai) processor.
I was very unhappy with the performance, and stability issues, especially in gaming, frame drops when more action on the screen was happening, or game stuttering even with titles which were not suppose to be demanding for this system.
I've already tried different PSU's, GPU's and so on, and I decided to update the BIOS hoping that might improve overall experience with this system.
Here's what heppend next.

1.I've found BIOS for my motherboard at the retro web here:
https://theretroweb.com/motherboards/s/intel- … shade-lite#bios
- I have the exact same model, so I took latest 4.03.1097 BIOS version for it.
- It "updated" successfully but it turned out it's actually older version that it was previously (also my bad I didn't properly verified it before I took an action)
- After some more search I've found newer BIOSes here:
https://theretroweb.com/motherboards/s/intel- … nightshade#bios
- Seems to be slightly different model supporting dual CPU's and I have Lite version with 1 CPU
- But I figured this must be also suited for the Lite version, because I remember I had previously the P11 version of the BIOS, and before I was more familiar with naming convention on these, it turned out I flashed it with P4 version
- So currently it is much older, and sees my Pentium 3 as Pentium 2 500Mhz also saying that stepping for this processor is not supported.
- But Windows 98 continues to start, so I can try to fix it.
- Also system will not boot with my Radeon 7500 and had to switch to using onboard Intel GPU
2. OK, so now I have an issue
- Now every attempt of update the BIOS, meets the following errors:



- I tried to update with different versions available from the retro web: P6, P11, P12, P14 and all ending up with same errors
- All of these above, using iflash tool
- The only version of BIOS which flashing successfully is the same I already have (tested). But the way it installs is different. The file provided, is creating boot floppy and it is more automated I would say.

Looking for solution I've found this auction for the same motherboard as mine:
https://aukro.cz/zakladni-deska-intel-t440bx- … kcni-7052409802
By the screenshots we can see that this one is running the P12 BIOS, or P14 judging by the date of BIOS - so I suppose it should also work for me.

But right now I'm stucked and out of ideas and cannot update to any newer version. I couldn't find any information on those errors.
If anyone is familiar with this kind of issue, or any advice what should be the next step please let me know.
Maybe different flash tool ? I tried to find one, but no luck here as well.
Thanks