How to assemble ASUS KGPE-D16 yourself?

Hi all . Nice to meet you . Excellent site, a lot of useful and interesting information.

I decided to create this topic to build ASUS KGPE-D16 myself, I’m sure there are many who want to do the same thing.
I've read various comments on reddit about users having problems and not getting through to the end.

It would seem that there are clues:

Take it and do it yourself, but as experience shows, in reality everything is not so simple)) especially if you are doing it for the first time.

I would be grateful if someone who has already had experience would share information.

At the moment I am in a situation where I need to buy all the parts and start assembling. Here is my list (attached below), if I made a mistake somewhere, correct me.

I was also a little scared by this message about electricity)) https://trisquel.info/en/forum/librebooting-my-desktop

1. ROM GnuBoot
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Download ROM for flashing the BIOS chip here https://ftp.gnu.org/gnu/gnuboot/gnuboot-0.1-rc1/ (2023)

2.Case
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https://www.fractal-design.com/products/cases/define/define-7-xl/black-tg-dark-tint/ 1 pcs

3. CPU
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AMD Opteron 6276 (2 pieces each with 16 cores ) https://www.coreboot.org/Board:asus/kgpe-d16

4. Cooling
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a) inside the box 6 pcs nf-a14-pwm (140mm) https://noctua.at/en/nf-a14-pwm

b) power supply dynamic-gp-14 (140 mm) 1 pcs https://www.fractal-design.com/products/fans/dynamic/dynamic-gp-14/

c) on the radiator nf-a6x25-pwm ( 600mm) 1 pcs https://noctua.at/en/nf-a6x25-pwm

d) CPU fan nf-a9-pwm ( 92mm ) 2 pcs https://noctua.at/en/nf-a9-pwm

e) Cooling radiator 2 pcs Dynatron T757 AMD Opteron Socket G34

Memory
==========================

Kingston Technology ValueRAM 16 GB 1600MHz DDR3 (PC3-12800) 2-3 pcs

Power Supplies
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Fractal Ion+ Platinum 760W 1 pcs https://www.fractal-design.com/products/power-supplies/ion/ion-platinum-760w/black/

GPU
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video card geforce-gtx-780 (rev a1) 1 pcs https://h-node.org/videocards/view/en/1584/NVIDIA-Corporation-GK110--GeForce-GTX-780---rev-a1-/5/1/undef/undef/undef/undef/video-card-works/undef

SSD
========================

https://www.crucial.com/products/ssd/crucial-p2-ssd.html 1 pcs 1000Gb