MSI GT72 2QD Dominator, Question about RAM!

Hi guys,

I have a question about my laptop and the RAM involved.

It has come to my attention that in my laptop, two ram slots can be accesses easily, however the other 2 are located under the motherboard and there is quite a bit disassembly involved,

My question is, the laptop came with 8GB stock, which is located underneath, so cant be accessed normally. (CPUZ Screenshot Attached).
Can I put in more ram in the other slots to increase the overall RAM? and if so what should I be looking for so that the different sticks are compatible with each other.

Thanks so much for you time!
Regards
Andrew

 

Yes you can, and the easiest thing to do is to buy the same RAM.

Sent from my LG-H950

 

I do have different brands (A-Data+Samsung) but searched for identical timings. To get dual channel you need slot #4 filled afaik.

 

So just the manufacturer, or do I need to keep stuff like max bandwidth in check too?

 

What do u mean by timings? Could you elaborate.

Dual channel would require all 4 slots to be filled? or just slot #4?

 

http://www.czone.com.pk/memory-modu...memory-model-kvr16ls11-8-pakistan-p.2884.aspx


would this work guys? its the same model, but cant seem to find the 800MHz model!

 

That's "800MHz" model - but as DDR memory does double data rate they naturally advertise as 1600. Dual channel needs just #4 - if they are grouped like on my GT70 0NE. You see the timings on that CPU-Z grab, column Jedec #7. Those values are pretty common.

 

Aha nice, thanks for the info! If possible could you explain to me (in noob terms) what dual channel means?

Also, the link I provided, would that RAM be ok? As for installing just pop it in and I'm good to go? or do I need to do something in the BIOS?

Thanks again for your time!

 

Dual channel will require you to have even pairings of similar RAM which will double the "actual" speed of the RAM (Slot 1 and 3 paired, slot 2 and 4 paired). These pairs are typically grouped together on the motherboard so that the two under the keyboard are paired and the two on the back panel are paired. So an 800mhz stick as read by the application used, in your case, would be 1600mhz if paired correctly. The 1600hz speed is what you'll typically find the sticks advertised as and is a pretty common speed for RAM these days. If you don't have them paired with like sticks they'll just revert to the most common denominator between them (speed, timings, latency)

For example, if you were to match your existing 1600mhz stick with a 1866mhz stick, you wouldn't expect 1866mhz speeds out of it being paired with a 1600mhz stick.

As far as the stick you linked, it should work no problem but you can never say 100% until you pop it in or try. RAM is very finnicky and the systems they're in sometimes even more so. I don't see any technical reasons why it wouldn't work.

 

It's still recommended to use identical pair from the same batch because when you mix modules they will become more sensitive to timing differences.