RAM for Laptop (4 + 4 vs 8 + 2 ram configuration | 1.5v with 1.35v)

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rochan_siliconbox

Reputable
Sep 26, 2014
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4,510
Hi all,

I have a Lenovo S510p ( non-touch) that I bought this May. I came with an default 2gb provided by the OEM and I requested an upgrade of 2gb ( Total now : 4gb). Here is the link to the rams datasheet :

http://www.digchip.com/datasheets/parts/datasheet/3454/MT4KTF25664HZ-1G6E1.php

My cpu-z tells me they run at 1.35v.

1) Is that the amount my laptop is providing or the amount they are receiving?
2) Can I mix the rams with diff. voltages?

I plan to buy new 8 gb ram ( 1600mhz).

3) Which configuration will work better -

Type 1 -- 2gb (slot 1- old) + 8gb ( slot 2 - new)
Type 2 -- 4gb (slot 1- new) + 4gb (slot 2 - new)

If I buy a 8gb ram, I will be able to get 10 gb overall whereas, if I get a pair of 4gb ram's, the max I can achive is 8gb.

Can you please enlighten me on this.

Thanks A Lot,
Rochan
 
Solution
C12Friedman
Answers follow
1) 1.35V is the power needed to make the ram operate, it is supplied to the ram by the laptop
2) Mixing ram specs (voltage, frequency or latency) is not recommended - it gets worse, see answer 3
3) It's always best to purchase the complete amount of ram wanted as a kit (matched modules). Manufacturers match up modules to ensure they play nice together and then sell them as kits, often ram coming off the same assembly line does not work together, the purchase of a kit ensures they are compatible. Ram is kind of funny in that it is the pickiest of PC components, being very selective about other ram (or systems even) it wants to "play nice" with.
The best option IMO is to use one of the on-line Memory Finder tools that the...
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C12Friedman

C12Friedman

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Jan 25, 2012
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Answers follow
1) 1.35V is the power needed to make the ram operate, it is supplied to the ram by the laptop
2) Mixing ram specs (voltage, frequency or latency) is not recommended - it gets worse, see answer 3
3) It's always best to purchase the complete amount of ram wanted as a kit (matched modules). Manufacturers match up modules to ensure they play nice together and then sell them as kits, often ram coming off the same assembly line does not work together, the purchase of a kit ensures they are compatible. Ram is kind of funny in that it is the pickiest of PC components, being very selective about other ram (or systems even) it wants to "play nice" with.
The best option IMO is to use one of the on-line Memory Finder tools that the manufacturers offer

As far as how much memory your laptop supports, I could not find that information from Lenovo. It is possible your PC can only support 8GB of ram or it may support 16GB of ram
 
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Solution
R

rochan_siliconbox

Reputable
Sep 26, 2014
6
0
4,510
Thanks a Lot @LukaBoki and @C12Friedman for the quick reply. By the way my laptop supports 16 gb of ram. Can you please suggest any sets of ram as searching for a 1.35v module set is really difficult.

Sorry for bugging you as I am 15 years old and have a lot of school work to do. Thanks a lot once again

Rochan
 
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