Hi there!
I am very sorry for the inconvenience caused. The way to install the memory is designed according to the signal rules of the CPU, not determined by the hardware manufacturer.
The signal channel of the memory is generally ABCD, etc. Each channel can support different orders of memory according to different models. Similar to the design of industry friends.
In the case of Huawei products, the No. 1 CPU supports the memory slot at the beginning of 0XX. The CPU No. 2 supports the memory slot at the beginning of 1XX. This can be referred to the memory installation of the product documentation. You can also refer to the Huawei Memory Configuration Assistant.