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10-28-2019

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C340 model laptop it has only 8GB of memory but I want to upgrade

2019-10-28, 11:19 AM

I purchased Lenovo C340 model laptop it has only 8GB of memory but I want to upgrade it to 16GB so I need detail of how many RAM slot it has and how many GB RAM I have to buy to upgrade to 16 GB.

 

Suppose  if it has 4 slot will buy two 4gb or only 2 slot will buy two 8gb etc..

 

Kindly conform this as soon as possible.

 

Regards

Leo Alexander A

 

Admin note: post moved to correct board, subject edited.

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2038 Posts

07-22-2010

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Re: C340 model laptop it has only 8GB of memory but I want to upgrade

2019-10-28, 14:41 PM

Per psref there is only 1 slot

 

16GB max offering / 2400MHz DDR4, optional 4GB memory soldered to systemboard, one DDR4 SO-DIMM socket * System clocks down for processors with lower memory controller

 

http://psref.lenovo.com/Product/Lenovo_Tablets__Convertibles/ideapad_C34014IWL

 

http://psref.lenovo.com/Product/Lenovo_Tablets__Convertibles/ideapad_C34015IWL

 


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3 Posts

11-29-2019

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Re: C340 model laptop it has only 8GB of memory but I want to upgrade

2019-11-29, 17:42 PM

I wish I could have read your message before buying a 16gb ram.

In order to upgrade ram capacity of newly bought ideapad C340 IWL, I bought  Kingston's hyperx impact* model (16gb/2400mhz ddr4)  After the installation the capacity rose to 20gb. There was no problem until I began to use the laptop.

 

  Although I opened a few program, The heat rose immediately, and until the programs were closed, it never dropped. The fans began to work continuously. then ı tried to open just  one program, Chrome. I tested it by opening 20 pages at the same time. (According to task manager, %22 of the memory is used) The result was same. Heat rose, fans began work noisily. (not a normal way, They were spinning insanely, As if there was a fire inside. As if they were the unoficial lenovo fire department) I decreased the number of pages to below 10. But the fan worked intermittently.

 

  Then I switched rams, and installed ramatex, the original one  which lenovo sold c340 with it ( 2666mhz 4 gb ram).

Right now, I'm writing this message using ramatex 4gb. The chrome has more than 30 pages open, b esides that 6separate programs are open  (two office program, photoshop cs6, itunes   and vlc player). And surprisingly there is no heat, no fan noise  at all. (%80 of memory is being used)

 

 

( * Kingston 16Gb 2400Mhz Ddr4 Cl14 Sodımm Hx424S14Ib/16)

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Re: C340 model laptop it has only 8GB of memory but I want to upgrade

2019-12-07, 4:52 AM
Edit: ramatex should be "ramaxel"
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3 Posts

04-28-2020

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Re:C340 model laptop it has only 8GB of memory but I want to upgrade

2020-04-28, 18:27 PM

Hi Guys, 

 

i recently bought a Lenovo C340 with core i5 and 4gb ram, i want to upgrade the ram. can you please suggest the ram model i should buy?

 

Usman

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58 Posts

04-25-2020

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Re:C340 model laptop it has only 8GB of memory but I want to upgrade

2020-04-28, 21:33 PM

Hi Usman,could u open CMD using (press windows key + r) and write cmd, then press enter.

now enter: wmic ,and press enter.

now write: memorychip get partnumber, manufacturer, speed

 

an output shall be given with the followed data:

Manufacturer, partnumber, speed.with this, if your manufacturer is Samsung, u can upgrade ur memory with another Samsung according to the speed it displayed.

Example given:

 

Manufacturer

Samsung

 

PartNumber

M471A5244CB0-CTD

 

Speed

2667

 

now u can google for ` Samsung ddr4 sodimm, 8gb 2667 `make sure u buy a memory as of : kit of 1. not two, as that will result in 2x4gb instead of 1x8gb.

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04-28-2020

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Re:C340 model laptop it has only 8GB of memory but I want to upgrade

2020-04-29, 11:28 AM

Hi Dylandvd,

 

thanks a lot for your response. 

 

i tried your suggested commands to get the info regarding memory, but i am little confused on my cmd it showing speed of 2400 but when i post the part number M471A5244CB0-CTD on google the Samsung comes up with speed 2660. can you please recheck at your side? images attached.

 

also can you please suggest the exact model number of upgraded samsung ram? will it void the warranty if i upgrade the ram?

 

Regards,

Usman 

 

 

 

 

 

 

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04-25-2020

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Re:C340 model laptop it has only 8GB of memory but I want to upgrade

2020-04-29, 17:01 PM

Hi Usman, 

Thank you for the screenshot, and great to see all went well.

 

First the answer to your question, `how can it be that my memory is showing different speeds?`

This could come down to 3 things, actually.

 

  1. The processor inside your laptop supports a lower-mhz rate than the one installed in your laptop; there for it downclock's its-self to function *
  2. Lenovo may have a fixed setting in your bios / and - or your laptop will preform in dual-raid memory. there for the main clock speed is disabled. *
  3. The memory actually (i have checked) comes in 3 variants,  2666Mhz, 2400Mhz, and 3133 Mhz.

 

  * This will not make your laptop any slower, since memory has almost no impact on actual usage and/or graphical performance.

 

For your upgrade (if it is 16gb) i recommend you to get this memory (if available) :

M471A2K43CB1-CTD ( google for this just copy and paste, perhaps u can find it in pakistan ).

 

Regarding your question about warranty there's one thumb of rule:

A warranty is not void, if the laptop is designed to be opened: example given; a tablet has no screws, so opening one means warranty is void, a laptop on the other hand has screws and so warranty will NOT be void.

 

For replacing memory; i recommend you to watch a youtube video on how to do it, it's actually quite simple as i did so too myself today.

Again; refering to warranty void example; The memory module is a user-interactive (meaning u can stick something inside, and pull out yourself) and there for will not void warranty.

 

However; Any damages done from sticking it in wrongly and so on, will void warranty. always use precaution and be alert on doing so yourself. 

If it sounds scaring to you, i advice you to go to a computer shop as they usually have some coverage on their business so when they **bleep**

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