[HELP - LAPTOP MEMORY] Gigabyte U2440N Memory module upgrade

[sas28ke]

Hi Folks!

Anyone here using the Gigabyte U2440N laptop? I just wanna ask what type of memory should I by for this. I like to add 4GB of additional RAM. Below are the specs:

CPU: 3rd Generation Intel® Core™ i5-3317U Processor (1.7GHz-2.6GHz)
GPU: NVIDIA® GeForce® GT 630M 1GB
Chipset: Mobile Intel® HM77 Express Chipset
RAM: 4GB DDRIII, 2 slots(Max 8GB)

Source: http/www.gigabyte.in/products/product-page.aspx?pid=4249#sp

Thanks in advance guys!

 

[jaguarskx]

Below is a link to the type of RAM it uses. In this case the brand is Crucial which is the brand I generally recommend. Other good brands include Corsair, Kingston and Muskin.

http/www.newegg.com/Product/Product.aspx?Item=N82E16820191394

Pay attention to the voltage. Whatever RAM you end up buying it needs to be 1.35v, there are others that require more than and they will not work.

 

[sas28ke]

Thanks jaguarskx! by the way, upon checking the voltage of RAM in the Gigabyte's site, they said that the processor is at 1.5V. Should I get the similar voltage for my laptop?

 

[jaguarskx]

The CPU and RAM voltages are different.

To verify the RAM's voltage you can look at the RAM which is currently installed in the laptop. It should have a sticker on that lists some information such as the voltage.

 

[sas28ke]

Alright. Thanks for the help mate! I'll disassemble my laptop later to check out

 

[sas28ke]

Hi jaguarskx,

Upon checking my RAM, i found this specifications. What will be the best brand for me to buy which will give me the best performance increase?

Transcend 4GB
1333 Mhz
1.5V

 

[jaguarskx]

That seems to be an odd choice of RAM to use in an ultrabook because it the RAM uses 1.5v instead of 1.35v which reduces battery life.

The least expensive solution would be to buy another stick of the same type of RAM; 1333MHz and 1.5v.

The more expensive option is to buy two sticks of DDR3 1600 (PC3 12800) 1.35v RAM. Mixing different speed RAM would generally mean the faster RAM will work at the slower speed. However, mixing RAM that uses different voltages... I don't know what would result.

Regarding brands, see my 1st post.

 

[sas28ke]

Is it ok/safe if I put two sticks of DDR3 1600 (PC3 12800) 1.35v RAM to the 1.5v socket? Even though the default RAM installed in my system is only has 1333Mhz and 1.5v?

 

[jaguarskx]

It is fine to use DDR3 1600 1.35v RAM because the Intel HM77 chipset accepts up to 1600MHz RAM and it accepts DDR3 and DDR3L. DDR3L simply means 1.35v while DDR3 means 1.5v. As stated before, just don't mix RAM with different voltages together.

The information can be seen in the diagram on the 2nd page of the Intel's technical brief for the HM77 chipset:

http/www.intel.com/content/dam/www/public/us/en/documents/product-briefs/hm77-mobile-chipset-brief.pdf

 

[sas28ke]

Alright! This helps me a lot )) Thanks as always jaguarskx!