So I think the problem is from my CPU's, that was launched on Q3'16.
Here my laptop : http://www.ldlc.com/fiche/PB00217508.html
Here the CPU/chipset informations : http://ark.intel.com/fr/products/95598/Intel-Celeron-Processor-N3350-2M-Cache-up-to-2_4-GHz
(Sorry my english isn't m'y main language :D)
Syl'