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Lenovo G780 Laptop: 1.35V RAM Compatibility, DDR3 4GB PC3-12800 1600MHz CL11 1.5V, LA-7983P PCB

tomek83f 6075 8
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  • #1 16372987
    tomek83f
    Level 12  
    Will the 1.35V RAM work in the Lenovo G780 laptop? Currently, there is a 1.5V ram there and the DDR3 1.5V 4.0S LCN marking is on the RAM socket

    Specification of my laptop:

    Intel Core i3 2350M 2.3GHz processor
    RAM DDR3 4GB PC3-12800 1600MHz CL11 1.5V
    Graphics: Intel HD Graphics 3000 and NVIDIA GeForce GT 630M
    PCB: LA-7983P
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  • #2 16373001
    Matuzalem
    Level 43  
    RAM can and will work (depending on what you understand by this term), but a laptop with such modules will not.
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  • #3 16373007
    tomek83f
    Level 12  
    I meant whether the laptop would start and work, not whether the frame would be damaged.
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  • #4 16373017
    Matuzalem
    Level 43  
    tomek83f wrote:
    I meant whether the laptop would start and work, not whether the frame would be damaged.


    Me, writing my answer, too.
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  • #5 16373059
    tomek83f
    Level 12  
    I wanted to set up a kingston hyperX 2x8GB 1600 MHz there, where the manufacturer states in the specification that these dice can work at 1.35 or 1.5V, so how is it in such a case?
  • #6 16373069
    dt1
    Admin of Computers group  
    According to Intel's specification, the I3-2350M supports DDR3-1066 and DDR3-1333 RAM, i.e. 1.5V powered memory, only the next generation supports DDR3L 1.35V modules). If the memory you want to buy will be able to work in DDR3-1333 mode when powered by 1.5V, the SPD has this profile saved and the BIOS will set these parameters, everything will work. If the memory is not able to work like this, the SPD does not have such a profile saved, or the BIOS will not be able to set it - then you'll know about it first.

    If I were you, I would look for modules that are compliant with the processor specification and with the manufacturer's guidelines, i.e. DDR3-1333 1.5V.
  • #7 16373070
    sosarek

    Level 43  
    tomek83f wrote:
    I wanted to set up a kingston hyperX 2x8GB 1600 MHz there, where the manufacturer states in the specification that these dice can work at 1.35 or 1.5V

    If I can work with 1.5V, what's your problem?
    The question is whether your motherboard can handle that amount of RAM.
    Helpful post? Buy me a coffee.
  • #8 16373072
    dt1
    Admin of Computers group  
    The board should handle this amount, the laptop specification gives a maximum of 16GB in two 8GB bones.
  • #9 16373091
    tomek83f
    Level 12  
    dt1 wrote:
    According to Intel's specification, the I3-2350M supports DDR3-1066 and DDR3-1333 RAM, i.e. 1.5V powered memory, only the next generation supports DDR3L 1.35V modules). If the memory you want to buy will be able to work in DDR3-1333 mode when powered by 1.5V, the SPD has this profile saved and the BIOS will set these parameters, everything will work. If the memory is not able to work like this, the SPD does not have such a profile saved, or the BIOS will not be able to set it - then you'll know about it first.

    If I were you, I would look for modules that are compliant with the processor specification and with the manufacturer's guidelines, i.e. DDR3-1333 1.5V.


    In the future, I also want to replace the processor that supports DDR3 / L / -RS 1333/1600 and, according to the manufacturer, works on my motherboard, the maximum memory I can install at this point is 16GB
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Topic summary

The discussion centers around the compatibility of 1.35V RAM with the Lenovo G780 laptop, which currently uses 1.5V DDR3 RAM. The Intel Core i3-2350M processor supports DDR3-1066 and DDR3-1333 RAM, indicating that 1.5V memory is required. Users express concerns about whether the laptop will function with 1.35V RAM, particularly when considering future upgrades to 16GB of RAM and a compatible processor that supports DDR3L. It is suggested that if the 1.35V RAM can operate in DDR3-1333 mode at 1.5V, it may work, but caution is advised regarding motherboard compatibility and SPD profiles.
Summary generated by the language model.
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