laptop - Dell Latitude E6410 RAM upgrade

I am upgrading my laptop's RAM. Currently it has Samsung RAM PC3. I inserted two different RAMs and they both hung the system. The new RAMs are PC3L.

I just read that this might be the problem. Can anyone tell me more about this? I have read that PC3 RAMs and PC3L RAMs are interchangeable, then why this problem?

MemTest x86 gave "Unexpected Interrupt" error in both the newer RAMs. The RAMs are not faulty, they were working in other systems.

SPECS:

• Dell Latitude E6410


• Intel Core i7 920M


• 4 GB RAM
  
  
  
  
  • 2 x 2GiB Samsung M471B5673FH0-CF8)
  
  
  
  • SODIMM (Small outline DIMM, aka laptop memory)
  
  
  • Memory type: DDR3
  
  
  • Sold as 1067 MHz (0.9 ns). (Runs at 533MHz)
  
  
  • Also branded as type PC3-8500
  
  
  • Runs at 1.5v and 1.35v
  
  


• New RAMs:
  
  
  
  
  • Samsung 4GB PC3L (4GiB M471B5173BH0-YK0)
  
  
  
  • SODIMM.
  
  
  • DDR3
  
  
  • Sold at 1600MHz (runs at 800MHz)
  
  
  • PC3-12800 (more bandwidth than PC3-8500)
  
  
  • Low Voltgage (1.35v)
  
  

Answer

For the E6410, Dell states that this laptop only supports 1333mhz max. Your new memory is 1600mhz, even if you say it "runs at 800mhz". There is no indication that this motherboard will work with low-voltage memory, either. Why not buy memory that is intended to be compatible with your motherboard?