Power & Source of Big Ideas

Wiki says its

RAM: Dual-Channel 4GB LPDDR3-1866

but the wiki also says its 2ghz, but its not that either. So ideally I could read this from the terminal somehow.
Whats the memory frequency of the NanoPC-T4? Can I change it (overclock it)?
I'm having trouble apt-get update/apt-get upgrading over here. Its trying to install a new kernel 4.15.0-38-generic, but its failing. Do you want to continue? [Y/n] Setting up initramfs-tools (0.130ubuntu3.5) ... update-initramfs: deferring update (trigger activated) Processing triggers for initramf...