08-28-2018 02:59 AM
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
In manual https://download.lenovo.com/consumer/mobiles_pub/lenovo_g480_g485_g580_g585_g780_hmm_v1.0_english.pd...
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 ?
08-28-2018 03:16 AM
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.
Personal website: ThinkScopes
08-28-2018 04:11 AM - edited 08-28-2018 04:23 AM
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
08-31-2018 09:26 AM - edited 08-31-2018 09:28 AM
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.