Why total ram are decrease?

[markusPLA]

Couple days ago I put a used 4 DIMM's into my server (4 x 8GB). That day it showed over 32GB. Now there are less than 32...
What is the reason?

 

[Dunuin]

Its GiB not GB.
31.33 GiB = 31.33 * 1024 * 1024 * 1024 Byte = 33,640,331,345 Byte = 33,640,331,345 Byte / 1000 / 1000 / 1000 = 33.64 GB
So the strange part is that it shows more available RAM than you actually got.

You can loose some RAM in case you use a iGPU. The iGPU will steal some RAM at boot because it doesn'T got its own VRAM.

 

[markusPLA]

Yes, it is. I forgot that I saw "over value" on ProxMon (name of mobile GUI)... And here is in GB not in GiB.

Thank you Dunuin!