too much hardvare reserved ram

[Bapce1]

[BeemerBiker]

You may have 16gb of memory but 8gb might be all that is available.

There are a lot of reasons this can happen as explained here

It is also possible the wrong memory is being used. You may have memory of different ranks (mis-matched memory). The memory may be in the wrong slots, especially on desktop system.

An easy way to find what memory you have is to run the wmic app from the windows command prompt. Bring up the window CMD prompt and enter the first line to see what memory you have. The second line may give the maximum memory possible based on the chipset. The number of memory sockets limit what can be added.

wmic memorychip get devicelocator, capacity, speed, MemoryType, formfactor, partnumber, manufacturer

wmic memphysical get maxcapacityEx, MemoryDevices

Should look something like the following. To purchase identical memory search for the part number shown and look for the letters 'HP' on any label attached to the memory stick.

The above values are in bytes. Divide by 1024 twice to get megabytes.
8589934592/(1024*1024) = 8192mb or 8gb

The output of maxcapacityEx is Kbytes, not bytes.

Note that some older systems do not recognize maxcapacityEx even when running latest Windows.

let me know what WMIC shows.