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c++windowswinapiwmiwmic

Get the RAM type detail description from WMI

I use the following command: wmic path Win32_PhysicalMemory get TypeDetail to get the type detail value. It returns: 16512. From the Microsoft docs: https://learn.microsoft.com/en-us/windows/win32/cimwin32prov/win32-physicalmemory

Only the following values are available:

Reserved (1)
Other (2)
Unknown (4)
Fast-paged (8)
Static column (16)
Pseudo-static (32)
RAMBUS (64)
Synchronous (128)
CMOS (256)
EDO (512)
Window DRAM (1024)
Cache DRAM (2048)
Non-volatile (4096)

But there is no description for value: 16512. So, my question is: how to get the description for this value?

Solution

  • Per Microsoft documentation it appears that the value comes from SMBIOS information. If we break down the value 16512 to bits, we'll see that bits 7 and 14 are set. From SMBIOS spec, section 7.18.3 Memory Device — Type Detail, we can see that bit 7 indicates Synchronous and bit 14 indicates Unbuffered (unregistered).