On Friday 6 September 2024 21:15:32 BST Dale wrote:

> Update.  New memory sticks i bought came in today.  I ran memtest from
> Gentoo Live boot media and it passed.  Of course, the last pair passed
> when new too so let's hope this one lasts longer.  Much longer. 

Run each new stick on its own overnight.  Some times errors do not show up 
until a few full cycles of tests have been run.