uefi - Ubuntu 16.04 cannot recognize all my ram - Ask Ubuntu


installed 2x4gb ram (ddr3 1600) memtotal 6.4gb according 

cat /proc/meminfo

lspci tells intel hd 4000 uses 256mb

dmesg shows 6.4gb recognized when kernel booted.

my kernel 4.4.32, 64bit + uefi

found no video memory config in lenovo k29 laptop's bios.

i tried remove either 1 of rams each time 2.9gb of 4gb can recognized. although have 8gb in total 6.4 recognized in ubuntu 16.04 , 4gb available.

does know happened ram? appreciated.


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