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What is DDR3L memory?

Article Summary: This article provides information on new DDR3L memory shipping on newer notebooks.

DDR3L Memory Compatibility

New Notebook systems are utilizing Intel 4th Generation processors that require a new type of memory SoDIMM known as DDR3-Low Voltage or "DDR3L".

Note: Systems utilizing Intel 4th generation processors are not backward compatible with regular DDR3 memory modules.

If a DDR3 SoDIMM memory module is inserted into the system, the system will not complete Power On Self Test (POST). You may get no video displayed with flashing diagnostic lights.



  • DDR3L is pin-compatible with DDR3.
  • DDR3L is a dual voltage capable memory SoDIMM, which supports operation at both 1.5V and 1.35V.


  • DDR3 is a single voltage capable memory SoDIMM, which supports 1.5V operation only.
  • It is NOT compatible with systems using 4th gen Intel processors, which exclusively support 1.35V operation for memory.

The DDR3L SoDIMM has "PC3L" whereas the DDR3 SoDIMM has "PC3" in the JEDEC compliant text.

DDR3 v DDR3L Memory

fig1: image shows the difference in labelling between DDR3 memory module and DDR3L memory module.

Note: Visit the Dell Memory Selector page for further assistance on purchasing system memory.

For further assistance on resolving memory issues see article How to Troubleshoot and Resolve Memory issues with a Dell Notebook PC

Article ID: SLN153768

Last Date Modified: 04/27/2017 10:32 AM

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