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Blue Screen Again
Posts: 7
Registered: ‎08-27-2018
Location: UA
Views: 1,035
Message 1 of 4

Lenovo G580 (20150) RAM upgrade (voltage)

Hi. I want to add 4gb stick , but I really confuced about wich I should choose. I could not find strong answer from the forum and other sources.


I have SHARETRONIC 4 ГБ DDR3-1600 DDR3 SDRAM in my laptop. On photo on the motherboard, we can see (marked) DDR3 1.5v



Field Value
Memory Module                 Properties
Module Name                     SHARETRONIC
Serial Number                     22071101h (17893154)
Manufacture                        Date Week 10 / 2013
Module Size                         4 GB (2 ranks, 8 banks)
Module Type                        SO-DIMM
Memory Type                      DDR3 SDRAM
Memory Speed                   DDR3-1600 (800 MHz)
Module Width                     64 bit
Module Voltage                   1.35 V / 1.5 V
Error Detection Method   None
Refresh Rate                       Normal (7.8 us)
DRAM Manufacturer          Micron

Memory Timings
@ 800 MHz 11-11-11-28 (CL-RCD-RP-RAS) / 39-128-5-12-6-6-24 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 761 MHz 10-10-10-27 (CL-RCD-RP-RAS) / 37-122-5-12-6-6-23 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 685 MHz 9-9-9-24 (CL-RCD-RP-RAS) / 33-110-5-11-6-6-21 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 609 MHz 8-8-8-22 (CL-RCD-RP-RAS) / 30-98-4-10-5-5-19 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 533 MHz 7-7-7-19 (CL-RCD-RP-RAS) / 26-86-4-8-4-4-16 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 457 MHz 6-6-6-16 (CL-RCD-RP-RAS) / 22-74-3-7-4-4-14 (RC-RFC-RRD-WR-WTR-RTP-FAW)
@ 380 MHz 5-5-5-14 (CL-RCD-RP-RAS) / 19-61-3-6-3-3-12 (RC-RFC-RRD-WR-WTR-RTP-FAW)

Memory Module Features
Auto Self Refresh (ASR) Supported
DLL-Off Mode Supported
Extended Temperature Range Supported
Extended Temperature 1X Refresh Rate Not Supported
Module Thermal Sensor Not Supported
On-Die Thermal Sensor Readout (ODTS) Not Supported
Partial Array Self Refresh (PASR) Not Supported
RZQ/6 Supported
RZQ/7 Supported

In manual
Standard memory is DDR3 - ok.

Tried to find this plank in internet. Found it on ebay and it was 1.5v.


But CPU-Z and HWinfo show this


As we can see RAM is running on 1.35V and nominal voltage can be 1.5 or 1.35. Does this mean that my stick  is DDR3L? 

But everywhere was written that in this laptop is used DDR3 - not DDR3L 


And if try to launch 1.5V RAM with 1.35V will it launch?


So, which I should choose and buy - DDR3 1.5v, DDR3L or  find DDR3 1.35v? And where is hidding the truth ?


Posts: 1,412
Registered: ‎06-08-2013
Location: BE
Views: 1,032
Message 2 of 4

Re: Lenovo G580 (20150) RAM upgrade (voltage)

Ivy Bridge supports both 1.35v and 1.5v. Therefore, it's recommended to use 1.35v. Just buy whichever is cheapest, as long as it's not value RAM. Those are known to have compatibility issues.

Warm regards,
Jonas Hendrickx

Lenovo Insider - Windows Insider MVP

Personal website: ThinkScopes

Blue Screen Again
Posts: 7
Registered: ‎08-27-2018
Location: UA
Views: 1,017
Message 3 of 4

Re: Lenovo G580 (20150) RAM upgrade (voltage)

So should  I better buy DDR3L or DDR3 1.35V ? Or are all DDR3 1.35v = DDR3L ?

I found in internet shop DDR3 1.35V in DDR3 category and it is not taged as DDR3L. is this mistake ?

And wich stick is installed in my laptop now  ? Based on CPU-Z it looks like DDR3L, but if look at motherboard and manual - it should run with 1.5 v, but it does not


I'm wondering this moment, can You explane me it? 


P.S. for exemple - GR1600S3V64L11/4G or KVR16LS11/4

Posts: 2,346
Registered: ‎11-07-2014
Location: US
Views: 958
Message 4 of 4

Re: Lenovo G580 (20150) RAM upgrade (voltage)

DDR3 Low Power is 1.35v where "normal" DDR3 is usually 1.5v but it can be either 1.35v or 1.5v if the manufacture certifies it as compatible with both voltages.  IE - if the memory is capable to operate at either 1.35v or 1.5v it should clearly state that fact in the specifications.

As others have said, use quality memory (Samsung, Micron, Crucial, etc...) that is DDR3L 800 and you should be just fine.

One other thing to note - if you are adding memory and the total memory installed will be larger than 4gb, Windows 32bit OS will not recognize or report anything above 4gb. The fix to get all your memory working is to move to a 64bit version of the operating system.


I do not work for Lenovo, I only provide suggestions based on my personal willingness to help others. All advice and comments are based on my experience, and do not reflect Lenovo policy, terms or conditions.

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