Dell ebt2250 LGA1851 proprietary motherboard with power supply, case, and cooler

Warning
Please read the description carefully before purchasing. Absolutely do not purchase if you are a PC beginner.

This is a salvaged EBT2250 from Dell's build-to-order (BTO) system.
It is an LGA1851 socket motherboard. This listing includes the motherboard's dedicated power supply (750W Platinum), its dedicated case, and a CPU cooler. A wireless LAN + Bluetooth card is also included.

The original configuration included a 5070ti, so the GPU auxiliary power connector is a 3-pin type. (The cable to bundle the 3 pins into one has been transferred to my current PC and is not included. It is likely that a cable that comes with a GPU purchase can be used as a substitute.)

SSD, CPU, GPU, and DDR5 memory are not included. As shown in image 12, some of the screws for the latch that secures the case are missing. (This does not affect operation or parts securing. In fact, it's quite inconvenient to need a screwdriver to remove the side panel on a tool-less case, so I removed them and they got lost.)

The motherboard and power supply were replaced about 2 months after purchase, so they are almost unused.
However, there is a possibility that something may have been damaged during the process of removing the CPU and other components. Therefore, please understand that this is a no-claim, no-return sale.

The item will be shipped in its original box.
If the power supply and other components work, this is a great deal. We are looking for experienced PC builders with wiring knowledge to take on this challenge.
Regarding assembly, you can find official videos by searching for disassembly methods of each part, as shown in image 13. You should be able to assemble it easily by referring to those.
Please feel free to ask any questions.

Included items:
- Case
- LGA1851 (Core Ultra Processors) Motherboard (installed)
- Wireless + Bluetooth card (installed)
- CPU cooler
- 750W Platinum Power Supply (installed)
- Power cable
- Spare screws
- Adapter to convert the 3-pin power cable to a 2-pin plug for Japanese outlets (This is a bonus item. I'm including one I had lying around. Please do not use it if you are concerned.)