I always think that Tualatin support depends on motherboard revision?
Whats revision on white sticker in corner of your board?

It appears to be available on The Retro Web:

BIOS List: https://theretroweb.com/motherboards/s/intel- … 2-easton-2#bios
P16 BIOS: https://theretroweb.com/motherboard/bios/eaap … bd567349423.exe

As to whether or not a Tualatin will simply work with just a BIOS update? I don't know. I've never owned this board or known anybody with one. I have a 1.4GHz PIII-S in my Dell/Intel D815EEA but I had to pin mod it. It's definitely a requirement on the older revision board.

I just noticed that a portion of that file name you said is different. 0047 whereas the file I linked has 0030 but it's the listed BIOS for a D815EEA2 motherboard and it's version P16. I can't say I've paid that much attention to the BIOS string and tend to just YOLO it with BIOS updates myself... There's always the recovery mode option!

Babasha wrote on 2025-10-09, 05:27:

I always think that Tualatin support depends on motherboard revision?
Whats revision on white sticker in corner of your board?

Here is the number on the white sticker, I took a picture, but not sure how to upload it.

IME221007537 AA A52399-803

b_riera wrote on 2025-10-10, 23:36:

It appears to be available on The Retro Web: […]
Show full quote

It appears to be available on The Retro Web:

BIOS List: https://theretroweb.com/motherboards/s/intel- … 2-easton-2#bios
P16 BIOS: https://theretroweb.com/motherboard/bios/eaap … bd567349423.exe

As to whether or not a Tualatin will simply work with just a BIOS update? I don't know. I've never owned this board or known anybody with one. I have a 1.4GHz PIII-S in my Dell/Intel D815EEA but I had to pin mod it. It's definitely a requirement on the older revision board.

This is awesome! Because this is an executable, I assume I need to run it on the pc containing the MB and I’m thinking I need to use a different CPU (not the Tualatin chip) and once done, then slap it in.

For Tualatin support Intels matherboard has marking with "U" letter, i.e. D815EEA2U
https://web.archive.org/web/20241106110537/ht … .com/show/806/3

Indeed, so I take it we're still talking the same board as Re: Tualatin 1.4mhz PIII-S and Intel D815eeA2LU Motherboard

If so, between that, your board revision at the top of this list https://web.archive.org/web/20040229004731id_ … a2/ea2_proc.htm , and the correct BIOS you should be OK.

1strail wrote on 2025-10-11, 01:45:

Babasha wrote on 2025-10-09, 05:27:

I always think that Tualatin support depends on motherboard revision?
Whats revision on white sticker in corner of your board?

Here is the number on the white sticker, I took a picture, but not sure how to upload it.

IME221007537 AA A52399-803

I have the same board. Supports Tualatin.
Last BIOS is P21-0039. Too bad it doesn't have DDR.

shevalier wrote on 2025-10-11, 09:25:

For Tualatin support Intels matherboard has marking with "U" letter, i.e. D815EEA2U
https://web.archive.org/web/20241106110537/ht … .com/show/806/3

Yay! Mine has the U. Do I still need to update the BIOS for it to work on first boot up?

Nexxen wrote on 2025-10-11, 12:52:

1strail wrote on 2025-10-11, 01:45:

Babasha wrote on 2025-10-09, 05:27:

I always think that Tualatin support depends on motherboard revision?
Whats revision on white sticker in corner of your board?

Here is the number on the white sticker, I took a picture, but not sure how to upload it.

IME221007537 AA A52399-803

I have the same board. Supports Tualatin.
Last BIOS is P21-0039. Too bad it doesn't have DDR.

I’m putting Windows 98 on it so even without DDR should be quite fast thank you for your help!

1strail wrote on 2025-10-11, 15:39:

shevalier wrote on 2025-10-11, 09:25:

For Tualatin support Intels matherboard has marking with "U" letter, i.e. D815EEA2U
https://web.archive.org/web/20241106110537/ht … .com/show/806/3

Yay! Mine has the U. Do I still need to update the BIOS for it to work on first boot up?

yep, it`s Intel.
Their BIOS checks each processor, not the family.
Otherwise, you'll get "System halted. Contact technical support."

shevalier wrote on 2025-10-11, 15:51:

yep, it`s Intel. Their BIOS checks each processor, not the family. Otherwise, you'll get "System halted. Contact technical suppo […]
Show full quote

1strail wrote on 2025-10-11, 15:39:

shevalier wrote on 2025-10-11, 09:25:

For Tualatin support Intels matherboard has marking with "U" letter, i.e. D815EEA2U
https://web.archive.org/web/20241106110537/ht … .com/show/806/3

Yay! Mine has the U. Do I still need to update the BIOS for it to work on first boot up?

yep, it`s Intel.
Their BIOS checks each processor, not the family.
Otherwise, you'll get "System halted. Contact technical support."

Perfect, thanks very much!