NB frequency 2207.4MHz?

Solution
The CPU-Z screenshot shows the present memory clock (DRAM Frequency) as being 668.9 MHz. This means that the memory is running at two times this frequency because the memory is DDR (Double Data Rate); so we have 2 x 668.9 MHz ~ 1337 MHz which is the frequency the present memory is running at.

However, the memory may be rated at a higher frequency than 1337 MHz, but may be downclocked by the system for some reason(s).

What is the part number of the existing memory (it should start with K or H)?

Keep in mind that using two individual modules (even with the same part number) may not work together due to differences in memory characteristics. So it might require having to try several modules with the same part number to find...
The CPU-Z screenshot shows the present memory clock (DRAM Frequency) as being 668.9 MHz. This means that the memory is running at two times this frequency because the memory is DDR (Double Data Rate); so we have 2 x 668.9 MHz ~ 1337 MHz which is the frequency the present memory is running at.

However, the memory may be rated at a higher frequency than 1337 MHz, but may be downclocked by the system for some reason(s).

What is the part number of the existing memory (it should start with K or H)?

Keep in mind that using two individual modules (even with the same part number) may not work together due to differences in memory characteristics. So it might require having to try several modules with the same part number to find a compatible combination.

It is preferable to use a dual channel kit instead where the modules are guaranteed to be compatible.
 
Solution


Thank you verry mutch :)