Welcome to the Toshiba Support Forum, created for customers and enthusiasts to share knowledge, solve problems and discuss technology. To join the discussion, please login or register.
Results 1 to 3 of 3

Thread: Memory upgrade for Portege M400

  1. Memory upgrade for Portege M400
    Join Date
    Feb 2008
    I recently tried to upgrade my Portege M400 laptop from the original 512 Mb of ram to 2 Gb (which seems to be possible according to the user's manual.

    I tried to install standard DDR2-533 memory (I am installing 2x 1Gb). However, when i tried to restart the computer with the new memory the hard drive didn't recognise the new memory and I had to get someone with more IT expertise than me involved. After I tried to replace the original memory back into the computer the hard drive also failed to recognise that and the laptop had to be restored to the factory settings before windows would load again.

    Can anyone tell me what kind of memory I should be installing? Is there Toshiba specific memory that should be installed in the system? And finally, can I just pick this up from any toshiba re-seller?


  2. Re: Memory upgrade for Portege M400
    Join Date
    Dec 2004

    Without much writing I can post compatible memory modules for your notebook model:
    PA3499U-1M25(DDR2-667 256MB Memory Kit)
    PA3511U-1M51(DDR2-667 512MB Memory Kit)
    PA3512U-1M1G(DDR2-667 1GB Memory Kit)
    PA3513U-1M2G(DDR2-667 2GB Memory Kit)
    DDR2-533 256MB (PA3389U-2M25)
    DDR2-533 512MB (PA3412U-2M51)
    DDR2-533 1GB (PA3411U-2M1G)

    Your notebook can handle with max 4 GB RAM. If you want to order memory just use part number PAxxx.

    Bye and good luck!

  3. Re: Memory upgrade for Portege M400
    Join Date
    Feb 2005
    You can order memory module everywhere. Use listed part numbers given by Mike and you will find enough online shops in your country where you can order your favorite RAM.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts