After a system scan on crucial I've bought the 16gb kit on amazon but my lap keeps crashing with both dimms installed.
I ran several Rember cycles for each 8gb dimm on both slots with no issue, the lap works fine. But crashes in few minutes if running with both dimms.
Thinking the issue might be the dimm itself I bought a second kit, this time from it.crucial.com.
I've contacted the italian IT, they've tried to help me as much as they could but the only solution they kindly offered me was a complete refund (once sent back the kit) and try to buy a Micron update of the kit (the code 00XXX0 differs from usual .C16FPD in .M16FPD).
Due to the time it would take and digging into the web I found out other users had a SMC 2.1f175 and Boot Rom ver MBP91.00D3.B0C (same SMC ver on Yosemite but the BR was MBP91.00D3.B0B) I tried first a down grade to OSX 10.9.5.
Unfortunately even this last attempt failed. I'll be refunded but the point is that this product is not compatible with my mac =(
Since I need to upgrade MacPro 3.1 asap with 32gb ram, I'd like to fix my laptop before buying any other dimm.