Blue sky nh55 series notebook memory reading and writing speed is extremely slow, solution process record

My notebook model is blue sky NH57, After changing the memory recently, I found that benchmark The speed of is extremely slow , Compared with other normal, the speed of waist cutting

The above picture is of other notebooks 3200 Frequency reading and writing speed （ Source: Taobao buyer ）

The above picture is made by Supernet 3900X Memory read and write speed under the limit state of desktop

https://www.expreview.com/69846.html

Ran goose , After buying the memory, I found that this is my memory reading and writing speed

Reading, writing and copying are directly halved , I found many posts on the Internet, but there is no solution
the second day , use Aida64 The stress test of , I pressed the memory alone for half an hour to see if the memory is stable

Test the memory pressure , One is that the speed is very slow , Second, the memory comes from the seafood market , According to the seller with good transaction evaluation, it is “ Port licensed goods ”, I don't know if the water is deep , Because a look at the dog East 8、9 The price of 100 , Look at the seafood market again 600 The price also promises 7 Days no reason to return plus three-year guarantee , The head iron got on the train .
After half an hour of stress testing , After eating and sleeping, I measured the speed again, but it became normal ！！！

I don't know why , It's solved anyway , I hope it helps others