I’m using RWEverything to read physical memory. It works fine, but if I try to read an address that is too big then it results in a BSOD.

I’m using RWEverything to read physical memory
it works fine but if I try to read to big address it results in bsod
for example 0x0000eef777340000
is going to bsod me
how to calculate maximum safe to read address by knowing only my physical ram size? in cpp