Hi Xardas!
"The maximum capacity of L500D-13C is 8GB..."
Yes, the maximum capacity is 8GB (I suppose you mean 2 x 4GB).
"...so theoretically you can upgrade to 6GB without any problems."
Do you mean that upgrading to 2 x 4GB on my L500d-13c could present a problem?
(I apologise if I might have missinterpreted your posting)
Cheers!