From Lexicanum

these androids cannot possibly be the "predecesors" to the necrons, the necrons have been around for probably of millions of years, not tens of thousands, so please someone who know something more about this, pleas add

They were some kind of predecessors, but not in the background, right. It's divided now.--Genestealer, Magus 02:46, 11 October 2008 (CEST)