Thanks.  I tried to use amd64 which show the correct memory size.
Is there a way to use i386 to show the correct size of memory ?  The bios shows 
8G memory.  Did I miss something to make it ?
Clarence

    Stuart Henderson (<s...@spacehopper.org>) 在 2020年6月11日星期四 上午12:41:40 
[GMT+8] 寫道:  
 
 On 2020-06-10, man Chan <openbsd...@yahoo.com.hk> wrote:
>  You mean the memory limitation of i386 is 4G.  Am I right ?

A 32-bit kernel can only access memory mapped to addresses below 4GB.

The actual amount of memory that you can use depends on where the
BIOS/UEFI maps the memory (it reserves some addresses for device i/o
etc).

That's why you see a lower "available memory" amount than 4GB.

  

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