In an earlier thread you mentioned that despite the advice given by HP and several memory manufacturers (e.g. Crucial, Kingston), the above will also take non-ECC memory. Looking to add more memory to mine I came across several comments online when users complained that this was not the case for them (modules worked with the N36L, but not the N40L)... Could you please recommend a brand/link to a non-ECC 4GB module that you can verify that works? Thanks in advance.