Fujitsu Esprimo D756/E9X Intel Xeon

[Crafto]

Hi,

I have an Fujitsu Esprimo D756/E9X (not sure if 94 or 90). It came with an Intel Core i3-6100.

I am using it as a homelab server. It's sufficient so far, but as more users find themselves using the server I thought it may be time for an upgrade. Thus I did some research and found the Intel Xeon E3-1245v5. It uses the same socket and some pages/articles claim they are compatible with the Q150 chipset of the D3431. I even found a store selling the Esprimo D756 with the Intel Xeon 1275v5.
The store: https://www.workstation4u.de/Konfigurati...0404010114

I bought the CPU and went to try it out... Upon powering on the system I can hear a relais click (from the PSU) and the power light on the front briefly turns on - then it turns off again.

The BIOS Version is R1.28.

Can anyone give me some more insight or maybe even point me to a solution?
Maybe a BIOS update is enough, maybe there is a modded BIOS or it is just restricted by Intel and/or Fujitsu.
I also can't entirely rule out I have a defective Xeon chip.

Thanks

Dump from dmidecode:

Code:

Base Board Information
Manufacturer: FUJITSU
Product Name: D3431-A1
Version: S26361-D3431-A1

BIOS Information
Vendor: FUJITSU // American Megatrends Inc.
Version: V5.0.0.11 R1.28.0 for D3431-A1x                   
Release Date: 07/23/2019
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16 MB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 1.28

[DeathBringer]

Download CSME System Tools v11 and unpack it.
Run \Flash Image Tool\WIN32\fit.exe
Drug and drop your BIOS firmware into Flash Image Tool's window.
Go to Intel® ME Kernel->Reserved
Change a value of Reserved parameter to Yes.
Press Ctrl+B to build modded firmware. Then choose Yes
The file with name outimage.bin is modded firmware.

[Crafto]

Ok, thank you. I will try that, but this requires Windows.
Is it also possible with Linux by any chance?

[DeathBringer]

Is it also possible with Linux by any chance?

Use the virtual machine with Windows.

[Crafto]

How didn't I think of that 🫠

[Crafto]

You have to excuse me, but how do I get "my" BIOS firmware?