On 6/11/2020 8:57 AM, man Chan wrote: > I just want to know why OpenBSD/i386 have the memory limit to 4G.
All operating systems have this limit. The 80386 was released to the public in 1986, when 4 GB was an absurd amount of memory. > It is ok for me to run OpenBSD/amd64 on a i5 machine. Thanks Yes. Intel bet on Itanium/IA-64 for their 64-bit architecture. Meanwhile, AMD designed their own 64-bit architecture that extended x86. Intel wound up licensing AMD's 64-bit architecture, which at the time was called Intel 64 or EM64T. Your i5 processor uses Intel 64, which is compatible with amd64.
