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What is DDR3L Memory

Summary: This article provides information about new DDR3L memory shipping on newer laptops. Some information about DDR3 vs DDR3L memory is also listed.

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DDR3L Memory Compatibility

Notebook computers that are using Intel 4th Generation processors require a newer type of DDR3 SoDIMM memory that is known as DDR3-Low Voltage or DDR3L.

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

If a DDR3 SoDIMM memory module is inserted into the computer, the computer does not complete the 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 1.5 V and 1.35 V.


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

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

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

Figure 1: image shows the difference in labeling between DDR3 memory module and DDR3L memory module


This form of memory operates at 1.8 volts as opposed to the more traditional 2.5 volts and is commonly used in portable electronics. As with all DDR memory, the double data rate is achieved by transferring data on both clock edges of the device. Which consumes low power, produces less heat.

LPDDR3 Carousel

Figure 2: LPDDR3 Memory

Additional Information

Go to Dell Memory Selector page for purchasing system memory.
For information about optimizing memory, see Dell knowledgebase article How to Optimize the Memory (RAM) on a Dell Computer.
For information about resolving memory issues, see Dell knowledgebase article How to diagnose and resolve common memory issues on a Dell Laptop.

Out of Warranty support Out of warranty? No problem. Browse to the Dell Support website and enter your Dell Service Tag and view our offers.

NOTE: Offers are only available for US, Canada, UK, France, Germany, China, and Japan personal computer customers. Server and Storage not applicable.

Article Properties

Affected Product

Laptops, Inspiron, Latitude, XPS

Last Published Date

05 Oct 2021



Article Type