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[Request] Adding 7th Gen CPU support to Fujitsu D3401-A1
Hi, I have a Fujitsu Esprimo D756 with an D3401-A1 mainboard. Unfortunately it officially only supports 6th Gen Skylake CPUs. I have an Core i3-7100 laying around, which I would love to use in that system. At the moment there is an Intel Pentium G4400 CPU in there.

There is apparently another very similar mainboard with 7th Gen CPU Support. The Fujitsu D3401-B2. Here is the datasheet for it:
Unfortunately there seems to be no datasheet for my D3401-A(1) board.

Original BIOS files for both D3401-A(1) and D3401-B2 are available on
Login: anonymous
Location: /Products/Motherboards/EoL_Motherboards/EoL_ClassicDesktop/D34xx/D3401_D3402-A_D3417-A/BIOS_D3401_D3402-A_D3417-A

I already made a BIOS dump of mine using a CH341A programmer.
Just renaming the BIOS file from D3401-B2 and using DOSflash unfortunately doesn't work.
CPU-Z Screenshots of currently installed Hardware are attached as well.

I hope there is some way to make 7th gen work in that machine Smile

Attached Files Thumbnail(s)
Just truncate D3401-B2.UPD to 16384 KB and flash by a hardware programmer.
Thanks for your quick answer :) Just how is the correct way to truncate the file?
If I use truncate under linux and then compare the file to the untouched file in a hex editor, there is still quite a bit data being cut off at the end of the file. The command I used was this one:
truncate D3401-B2.UPD -s 16777216
That's OK.
Thank you very much! It seems to work perfectly Smile Smile

Attached Files Thumbnail(s)

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