M18x Memory Discussion Thread

Thanks, cheaper than anywhere else. I bit and + rep

 

Bought mine on Newegg this morning, way cheaper than Dell!

 

Just snagged 16gb of RAM myself from there. Thanks for the link! Rep added!

 

What changes need to be made in the BIOS, if you did not buy the "plug and Play"??

 

Good news!

Hopefully they get the 1866 back in stock as well:

Newegg.com - Kingston HyperX 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1866 HyperX Plug n Play Laptop Memory Model KHX1866C11S3P1K2/8G

 

I dont know if u guys have another discount, but for me, $15 instant discount is all i have and that would make it down to $148 Newegg.com - Kingston HyperX 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1866 HyperX Plug n Play Laptop Memory Model KHX1866C11S3P1K2/8G and still more exspensive than Kingston KHX1866C11S3P1K2/8G HyperX Plug n Play 8GB 4GBx2 204-Pin DDR3 1866MHz Dual Channel Laptop Memory Unbuffered Non-ECC CL11-Best Computer Online Store Houston Buy Discount Prices Texas-Directron.com

 

Perhaps I'm missing something. For a total of 4x4GB RAM sticks I paid $200.

 

Yea. $200 for 4x4gb 1600mhz is as same as Directron. I wish I could have that deal from Newegg. It appeared to be $128 x 2 (with $30 instant discount) so eventually still makes it $20 more expensive than Directron. That's y I went for the 1866mhz in Directron. The only thing that got me concerned is there's no sign of an EDD yet although bank has been charged already. Anyone has same issue?

 

Directron typically ships out the same day if you order early enough; I used to order from them all the time when I lived in TX, and never had any problems with them.

EDIT: you will get an email from them when it ships with a tracking number.

 

I placed my order late last night, and according Directron, Orders which placed after 1pm will be shipped on the day after. So I think my order should be shipped out today. Will give it some more times. Thanks for the response

 

Yep, placed my order early this morning and I am in the same boat. But I'm not worried as I am sure it will be here before my laptop is.

 

Will there be a noticeable difference between 1600 and 1866 speed ram?

 

I would say not that much at this time, but I rather take highest speed possible than paying for some upgrade later.

Latest update: My order has been shipped although the m18x hasn't been confirmed yet lol

 

Chances are, if you aren't seeing benefits in the work from RAMnow, you won't need the upgrade in the future anyways

 

If you check out Intel's site, the MAXIMUM memory speed the processor support is DDR3-1600. ( Intel® Core? i7-2920XM Processor Extreme Edition (8M Cache, 2.50 GHz)with SPEC Code(s)SR02E)

Is Intel mistaken and we really CAN get 1866 speed or will our overpriced 1866 memory down-clock to 1600 speed once in our m18x?

(8gb ddr3 1600 = ~$100; 8gb ddr3 1866 = ~$150)

 

The PnP memory on Newegg is $112. Directron has it for $100 plus $3 shipping.

@stormingblizzard, yes you can get 1866Mhz speed, but the 1866Mhz mem at CL11 is not much faster than 1600MHz at CL9. It is definitely not worth the price IMHO. Also there will be no noticeable difference at all, only in benchmarks.

 

Enough to warrant it for me

 

Unless the Integrated Memory Controller is dynamic and can transcend it's rated fixed maximum bandwidth, there really is no advantage to using the 1866 memory unless when you step down the frequency, it achieves tighter timings than the 1600 sticks available via SPD or XMP (if able). Sandy Bridge's IMC tops out at 25.6GB/Sec which, coincidentally, matches DDR3-1600 dual channel.

The problem then becomes if you are using DDR3-1866 (29.867GB/Sec) @ 1866, you are over saturating the memory bus with more than the CPU can handle and the extra bandwidth is wasted and most likely running CL11 type timings. It would be better to go with DDR3-1600 memory and tighter (CL9) timings or better so you achieve optimal timings and bandwidth.

On the other hand, if 1866 sticks running at 1600 can achieve sub CL9 timings, then it makes sense if you want to eeek out every last bit of performance.

In the end, performance gains are for bragging rights in benchmarks and/or long run time calculations (think 12-24hrs+) where the negligible performance gains add up to make an appreciable difference.

 

What are the advantages of having 16 gb of ram instead of 8 gb?

 

Nil in gaming.

 

ok guys so what would be better?

4*4 gb or 8*2 gb both at 1866 (hyperX RAM)? why?

which has lower latencies? lower latencies are better, right? why?

 

Who has the 2 x 4gb 1866 sticks in stock?

 

Obviously, 8x2 gives you 2 more rooms for later upgrade. Unfortunately, there's no 8GB module at 1866 on the market at this time Aditya.

About latency, since they are all Hyper x Memory so they do provide same latency regardless the size. We do all know that the lower CL the better but that sucks when CL keeps increasing along with the speed

 

What do u mean Sticky? you wanna buy them or what? we got a link on earlier post, u can check it out

 

Yes I want to buy them. Sorry, I missed it, going back through to check.

 

Suppose i do not want to upgrade in future, then, would it be better to go for 4*4gb sticks or 2*8gb sticks? ( assume there are of same speed like 1600mhz)?

also if money is no bar and i dont want more than 16gb, what would be the best ram for me? 2 8gb sticks or 4 4gb sticks? acc. to you guys' replies above there are no 8gb 1866mhz ram right? so i would have to go for either 4*4gb 1866mhz ram or 2*8gb 1600mhz for my m18x. which would you all recommend?

oh, btw suppose i have 4*4gb ram and one ram stick crashes then would i have 12gb left or only 8gb because the pair for the third ram stick is not there?

btw guys remember to wish your mother.

 

Yea check it out from Directron.com for cheaper price compared to Newegg.
I got 2 pairs (4x4 1866) being shipped from them. gl

 

fun questions: which ram modules have lowest latencies? any company. money no bar.

anyone planning to go for 32gb RAM? That too from dell. bwahahaha.

 

In this case, I would suggest you go for 2x8GB. Less module is better, because it takes faster to communicate among the system components. However, the fastest 8GB module available on the market right now is 8GB 1333MHz. But i would cost u bunch of money (compared to 4x4GB 1866MHz), plus there should be some noticeable difference between 133MHz and 1866MHz. So If i was you, I would go for 4x4GB 1866MHz instead of 2x8GB 1333MHz

For Dual Channel Memory, system counts on every pair of modules so If u had 1 out of 4 crashed. It would recognize 8GB only unless to disable Dual Channel ability, then it will go back to 12GB. Anyone here has other opinions?

 

i'd say that he'd only notice the difference between 1333 and 1866 if he switched from one to the other. otherwise, i think he'd never know unless benchmarking similar systems.

but also, if you went with 2x8, you'd have the option to upgrade in the future. it doesn't mean you'll need to, but you never know.

one could say that 4 modules would use more power than 2, hurting battery life. may be an insignificant amount, idk, but that may be something to think about..?

cant comment on the dual channel stuffs. idk lol.

 

And even then it would really depend on what he was doing most of the time. Gaming? Likely not noticable at all.

 

sorry i dont know anything about upgrading or how it works.
i bought basic ram which is 4gb.

so if i buy 2 of Kingston HyperX Plug n Play 8GB (4GBx2) 204-Pin DDR3 1600MHz (PC3-12800) Dual Channel Memory KHX1600C9S3P1K2/8G, Unbuffered, Non-ECC, CL9

can i make it 16gb?
i heard there are 4 slots in m18x.

oh and can i just buy any ssd from internet and install it?
or do i have to buy specific ssd? is there like a number that tells me what it is that m18x can handle?

 

yes u can make it 16gb by doing 4x4gb kingston hyperx 1600mhz dual channel

you can buy any ssd on the market and it should work no problem

 

not 'he' but 'you' please

 

deleted

 

FXi, please read earlier post for more detail. Thank you

 

"For Dual Channel Memory, system counts on every pair of modules so If u had 1 out of 4 crashed. It would recognize 8GB only unless to disable Dual Channel ability, then it will go back to 12GB. Anyone here has other opinions? "

How to disable Dual Channel ability? what are the benefits or disadvantages of it?

 

I'm sorry for the incorrect reply.
Says that u got 1 out of 4x4GB modules crashed. At that time your DUAL CHANNEL is off automatically, and your system will be recognized at 12GB.

The only way to enable DUAL CHANNEL is installing modules either on slot 1 and 3, or 2 and 4.

 

i noticed that there are rams that have 204 pin and 240 pin.
do i have to buy 204 one?
because all u guys r talking about 204 pin.
if it doenst matter, do u think
Amazon.com: Kingston Technology HyperX 16 GB Kit (4x4 GB Modules) 16 Quad Channel Kit 1600 (PC3 12800) 240-Pin DDR3 SDRAM KHX1600C9D3K4/16GX: Electronics
this will work on m18x?

 

240 Pin = Desktop
204 Pin = Laptop

 

240 pins is DIMM RAM which is used for Desktop. 204 pins is SO-DIMM RAM which is used for laptop (shorter).

 

ty so much!!
so i will be able to use
Amazon.com: Patriot Signature DDR3 8 GB (2 x 4 GB) CL11 PC3-12800 (1600MHz) SODIMM Notebook Memory Kit PSD38G1600SK: Electronics
right?
i see (2x4gb)=8gb
one ram is 4gb and it comes w 2 of em. thats why its 8gb right?
so if i buy 2 of em, i will be able to have total of 16gb, is this correct?
again thank you

 

Yes sir but the Patriot signature has higher CL, if I'm not mistaken.

 

so if you have 3x4gb and 1x2gb then it wont operate in dual channel and it'll only see the ram at half speed?

 

youll lose roughly 50% of your memory bandwidth, the speed in mhz will be the same.

winrar compression etc.. will be slower

 

Hah now all HyperX 8gb memory is out of stock on NewEgg. Just get the HyperX plug and play 1600mhz when it is in stock, it is the best deal. Just came out less than a week ago and it is the absolute best laptop memory. Link

 

Imagine Dual Channel like a 2 lanes road. Disabling it won't affect your memory speed, but the road would be narrower and transferring a certain amount of data would take double time to reach the destinations.

 

If money was no bar which would you guys prefer?

1866mhz with cas latency 11 OR 1600mhz with latency 9?

Higher speed or lower latency?

 

Is 16GB really overkill or could it be considered future-proofing? I guess what I am looking for is if anyone knows of any technical plans is the DX11 API or whatever handles this? Maybe something along the lines of utilizing one of those unused CPU cores to do some sort of background predictive loading of levels or such?

Or maybe I am thinking of this wrong. I looked at Crysis 2 and Dragon Age 2 in my steamapps/common directory and they take up about 10GB and 7GB on the harddrive respectively. It would seem the whole game could be cached into RAM.

 

16gb is overkill. ive had 4/8 AND 16gb. its definitely overkill.