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Thomas2828
Fanfold Paper
Posts: 9
Registered: ‎06-19-2018
Location: HU
Views: 690
Message 1 of 4

Lenovo G 40-30 RAM upgrade

Dear Lenovo!

 

My computer (Lenovo G40-30 -Model name: 80FY) need a RAM upgrade to 4 GB (now I use 2GB), because the current memory not enough  to serve a 64 bit operation system (Windows 8.1) without problem. I read here, that I need a 4 GB PC3-12800, 1600 MHZ DDR3L, 204 pin, SO DIMM socket memory card, its OK, I understand.

My problem is what kind of card exactly, beacuse it is possible, that the parameters OK, but the machine dont want my card, dont recognize the card - I seen this. Can you recommend me a card, that is sure will work in this model?

 

For example: Kingston Hyper X Impact Black 4 Gb 1600 MHz DDR3L will work? The system will recognize?

 

Link: 

 

https://www.amazon.com/Kingston-HyperX-Impact-1600MHz-HX316LS9IB/dp/B00KQCOSLY/ref=cm_cr_arp_d_produ...

 

In the homepage of the Crucial company (Micron) I found two good items, they write, this will work on my model (G40-30)! Is it true, it is sure, they test it? Or you can confirm, this is true?

 

The models: 

 

http://eu.crucial.com/eur/en/lenovo-g40-30/CT6069868

 

or:

 

http://eu.crucial.com/eur/en/lenovo-g40-30/CT6069876

 

Maybe you understand my problem, I dont understand FRU numbers, I am non-professional, I just want to buy a 4GB RAM card, that not theoretically, but in the reality will work in my computer! Can you recommend, please,  a card, that you know, will work surely (because somebody tested it). The brand (producer) is not important.

 

Thank you very much for your patience, and your answers in advance.

 

Sincerely Yours:

 

Thomas (Hungary)

 

 

 

 

Thomas2828
Fanfold Paper
Posts: 9
Registered: ‎06-19-2018
Location: HU
Views: 682
Message 2 of 4

Re: Lenovo G 40-30 RAM upgrade

The second crucial link is not OK, because it is not 1600 Mhz, sorry!
sclexman
Bit Torrent
Posts: 4,580
Registered: ‎11-22-2011
Location: US
Views: 662
Message 3 of 4

Re: Lenovo G 40-30 RAM upgrade

Your memory spec:

8GB max / PC3-12800 1600MHz DDR3L, one 204-pin SO-DIMM socket 

 

Reference:

http://psref.lenovo.com/syspool/Sys/PDF/Lenovo%20Laptops/Lenovo%20G40/Lenovo_G40_Platform_Specificat...

 

204 pins, SO-Dimm  is laptop  memory

DDR3L - double data rate memory... it reads both "edges" of the memory stick at a time.

L is low voltage 1.35V 

PC3-12800 this is transfer rate is MB/second.

1600 MHZ- <this is NOT a frequency. It is clock cycles. It will also be stated as MT/s, megatransfers per second.

 

MHZ: It is a measurement of clock cycles in millions of cycles per second. Used to show memory speeds, ex. 1333MHz or 1600MHz

 

It is double your Memory hub frequency since both sides are read a the same time. 

 

Speed:

The speed of DRAM is measured in MHz and bandwidth. Often both will be shown in the form of DDR3-1333 PC3-10600 where the 1333 refers to the MHz speed and the 10600 the bandwidth in MB/s.

 

 

Your crucial ....68 matches spec. 12800\1600

Your crucial ..76,, is  14900\1866. It is faster than spec.  and will clock down.

 

The Hynix looks good.  I would go with the ...68 crucial.

If you shop Crucial and Amazon, you will see the same part under two names. One is OEM, the other is reseller. CTxxxxxx is crucial part.

 

Thomas2828
Fanfold Paper
Posts: 9
Registered: ‎06-19-2018
Location: HU
Views: 657
Message 4 of 4

Re: Lenovo G 40-30 RAM upgrade

Thank you very much for the answer!

 

Thomas

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