Looks like I need to exchange the RAM then. I actually tried using just one of them without success (and memtest running without issues for 3 days).
Thought I was very carefull when ordering the RAM since I tend to run into capability issues around RAM every time I buy something new...
Thanks for the replies
I'll get back with my progress later on!
Bought new memory, recommended from seller was Crucial 8GB CT102464BF160B. Tried it with my NUC. Not working. Got the NUC replaced from seller and, surprise, STILL not working.
So my last hope is to get another memory thats actually on the list of tested memory (shouldnt have listened to the seller).
Try to get DDR3L.
Intel® NUC Boards D34010 and D54250 require DDR3L (1.35 V low voltage DDR3) memory.
Exchanged my memory again to:
KINGSTON 4GB 1600MHz DDR3L Non-ECC CL11 SODIMM (KVR16LS11/4)
Still same problem! The only common thing with all my tries was the source of the windows ISO, the program used to burn and/or move to USB (Microsofts own program) and the computer I did it on - so I tried one more thing. I took one original MSDN Windows 7 DVD that I was just about to throw away......and IT WORKED.
I'm feeling a bit stupid at the moment - but at the same time I cannot stop thinking about what could have been wrong:
-ISO being faulty from MSDN, I doubt it but why not
-ISO getting faulty while downloading, I would presume the program would have some checksum to check it?
- "Windows 7 USB/DVD download tool" messing up the files when moving it to USB or DVD
Anyhow, thanks for your replies! Now time for some configuring!