RAM upgrade for PR4100

what brand and type of RAM memory I should use to upgrade the PR4100
I found this link: WD_RAM

Memory Configuration PR4100

  • 4GB RAM - 2GB+2GB DDR3L
  • Upgradable to 16GB
  • Two rank SO-DIMM slots

what is the best choice and where to buy :slight_smile:

The following memory modules are approved for upgrading the memory of a My Cloud PR4100:
|2GB|Samsung SO-DIMM|M471B5674EB0-YK0|
|4GB|Crucial SO-DIMM|CT51264BF160B|
|8GB|Crucial SO-DIMM|CT102464BF160B|
|4GB|Kingston SO-DIMM|KVR16LS11/4|
|8GB|Kingston SO-DIMM|KVR16LS11/8|
|4GB|Micron SO-DIMM|MT16KTF51264HZ-1G6M1|
|8GB|Micron SO-DIMM|MT16KTF1G64HZ-1G6E1|

thank you

1 Like


Please refer to the following KBA: My Cloud: Upgrading the Memory

I upgraded my PR4100’s RAM with CT2KIT102464BF160B (16GB total) back in the beginning of 2019.

barely have any memory usage at all compared to the stock memory, even with intensive operations.

1 Like

I will test CT2KIT102464BF160B thank you

Thank you, I asked my computer store to get two of thoses RAM.

I’ll upgrade soon !


Is there any re-configuration of OS required for using of upgraded RAM for more effective file caching?

Could someone provide a link to the Crucial Brand 16mb (2x8mb) upgrade for the WD PR4100 NAS? I’ve been searching for two hours and I can’t find one that has the right product code with the right ratings and markings.

I’m told I need the DDR3L version but when you see the product pictures on just about any store, they all show a DDR3 picture.

I just need a link to the correct ones for the WD PR4100.