AMT Checksum Error

[Ugonote]

Hello!

At booting I see this post error:

 

It happens after installing a Sapphire Radeon Pulse RX 580 graphics card in the slot 2.

I tried to clear CMOS, and update the BIOS to 2.50, but it is still showing in every boot up.

The computer restarts in Windows after some minutes of activity.

Do you know what can I do?

Thanks in advance.

[DGroves]

well a start might be specifying the card you are inserting in slot one and then describing any other installed cards

and also confirming the error msg does not show if that card (or any other is removed) 

[Ugonote]

The card installed was an AMD Radeon 580, but I'd tried with a XFX 570 and a NVidia GFX 710. I also have installed an UAD 2-QUAD in slot 4 and a RME HDSPE-FX in slot 7.

The message still shows with or without any of these cards. Also, I have tried to swap the Radeon with a NVidia GFX card, but the error persists and Windows restarts.

Also, I have tried to put the graphic card at slot 6, as HP suggests.

[DGroves]

contact HP support your system might be under a extended support warranty.

you appear to have  corrupt Intel "AMT"  firmware and trying to reflash the firmware might cause the system to become non bootable.

for now, enter the bios and disable the AMT feature which is not needed in a non domain setting

Intel® Active Management Technology (Intel® AMT)

http://h10032.www1.hp.com/ctg/Manual/c03975296

[Ugonote]

I have disabled AMT in the main BIOS and in the MBE, but error shows in every boot.

As I see, the only way to flash the Intel NIC is to put the AMT jumper in write mode and upload the ROM via DOS, but I can't find any  AMT BIOS file in the HP downloads section. Do you know if it is safe to use the Intel's BIOS files for the I218LM chipset?