[Discuss] OT - Memory Upgrade

[epp at mcom.com]

Been looking into upgrading the memory in one of my Linux desktops and 
after looking at the specs, it seems like two different types of memory 
sticks need to be installed (?). The system currently has 4Gb in it and 
would like to expand this to 8Gb.

What is installed right now is a 4Gb DIMM (manufacturer shows Micron, 
speed 1333 MT/s, (from running 'dmidecode')). I'm assuming this DIMM is 
in the slot referenced as 'DDR3-1333' below. Would I then need one 4Gb 
1066 MT/s DIMM for the other slot, or could two 1333's be used?

Thanks in advance.


      4 GB

  *
    Amount: 4 GB
  *
    Speed: PC3-10600 MB/sec (message as PC3-8500)
  *
    Type: DDR3-1333


      Memory upgrade information

  *
    Dual channel memory architecture
  *
    *Two DDR3 DIMMs (240-pin) sockets*
      o
        *PC3-8500 (DDR3-1066)*
      o
        *PC3-10600 (DDR3-1333)*

  *
    Non-ECC memory only, unbuffered
  *
    Supports 1GB, 2GB, and 4GB DDR3 DIMMs
  *
    *Supports up to 8 GB on 64-bit systems (DIMMs run at DDR3-1066)*
  *
    Supports up to 4 GB on 32-bit PCs