Need information for RAM

thanks geo! will do that +rep

 

people, I got a final BSOD yesterday which led to the error that GPU was not detected, I arranged a refund from amazon.. was excited about 1866mhz but turns out not for my computer anyway, do you guys recommend 1600mhz hyperx? or should I wait 2133mhz? intel has certified 2133 right? so hopefully it will be usable in all our systems right?

 

yikes, so the 1866 curse strikes again

bro, if 1866 bsods for you, then 2133 is going to do the same thing.

Stick with the 1600's. There will be no difference in performance between the 1600 sticks you have now vs the hyperx 1600s

 

crap I am hoping it will be better as intel certified 2133, or does this even mean something of significance that I don't know.. kingston claimed that they tested 1866mhz on m17x too, maybe they just did memtest? 1866 passed 11 hours of memtest only to function for 4 days before multiple bsods with me I really don't know to upgrade ram or not, 4GB is not enough for me though, I need more as MATLAB demands more, however buying more 1600mhz is somewhat redundant, or not? my current ram has latency 11-11-11-28, kingston hyperx 1600 has 9-9-9-27 right? maybe it will be little bit better? anyway I am on the wait right now, will buy ram later this month maybe, or wait until 2133 comes and people experiment with it crap I was so happy for 4 days

 

Return and/or sell all current RAM and buy:

4x4GB Kingston HyperX 1600Mhz

Sorted.

 

Check this article from AmandTech which addresses memory scaling on the Sandy Bridge platform and the benefits of higher speed and lower latency memory. The very short version is that in normal use and gaming 1600 memory results in a small increase in performance over 1333 mem, but that 1866 and 2133 memory yield negligible additional gains that do not justify the increased costs. Further, latency has essentially no effect because of the efficiency of the SB memory controller. The exception is IGP graphics performance or some compression and video encoding apps. AnandTech - Sandy Bridge Memory Scaling: Choosing the Best DDR3.

 

Thanks guys! I will figure out what to do, I guess I will do what geo and revelator suggests and go 8GB 1600mhz, thanks for the link revelator!! +rep

 

Sorry to hear the 1866's didn't work out, I mulled those over myself. I ended up with the 2x4GB 1600 PNP HyperX modules and they work fantastic as others have reported. 0 BSOD's, no odd crashes, etc. Revelator hit the nail on the head. When it comes to performance, I am led to believe that latency:speed is going to net similar results especially in real world. 1866 @ CL11 should perform on par with 1600 @ CL9 and likewise with 1333 @ CL7.

Obviously there may be some benefits that the higher speed RAM can offer, but at the end of the day I doubt we would notice much outside of synthetic benchmarks.

 

I'm thinking of maybe downgrading to 4GB now. I have the option of getting 1866Mhz CL9 ones which are XMP 2 compliant. Or even go to 1600Mhz CL7 which are XMP 1. But they are only 4GB. Might get both sets and see if I can run the 1866Mhz CL9 ones @1600Mhz CL7.

 

ahh I wish I understood that much from clocking the ram widezu, what would you suggest CL9 @1600 is good enough (8GB?) or do you think I can somehow make 2133 work when it is released? (slick, please don't be right about this I know it is not a big difference, but still I want to see 2133mhz ram in this laptop at some point )

 

Well I'd love to see 2133Mhz happening. Dell just needs to release a bios with the XMP support. I'm using 1600Mhz CL9 at the moment. Gonna ditch those and move to 1600Mhz CL7 or 1866Mhz CL9 (both are XMP approved so stability should be fine).

2133Mhz would be awesome but the laws of diminishing returns plays a vital role. I mean there is hardly any difference between 1600 and 1866.

 

widezu, can you give me a link for cl7, I am having though time finding it

 

BAAAHHHHH EXPENSIVE!!!

Amazon.com: 4GB 1600MHZ DDR3 Non-ecc CL7: Electronics

 

They are very rare. Scott is selling a set in the marketplace but I call dibs on those THEY ARE MINE. The product id is KHX1600C7S3K2/4GX 1866Mhz CL9 ones are: KHX1866C9S3K2/4GX

They only come in 4GB - 2x2GB. No 8GB option unless you buy 2 sets.

 

omg they are expensive... I think I will stick with my stock ram for a little while figuring out what to do, I wish they were selling 2x4 of 1600 cl7 below 200 anyway I guess 1600 cl9 is the best to go for me right now.. I am not worried about gaming, relevator's link obviously shows no difference, however I want to see the difference in MATLAB, guess I need to wait for it

 

After I've tested many different configurations of rams, you can have my 1600Mhz CL9's for cheap if you want.

 

thanks for the offer widezu! however I guess I will wait for a while, want to make a comprehensive research before buying, also maybe around CES 2012, they will release some new product, should wait for that time

 

I'm only going to say this once more:

RAM doesn't matter!

Clickie

Can people stop spending $200 on memory now? Maybe put it into something useful... like a GPU!

 

I've maxed out every other component in my system already. The rest is for bragging really.

 

If you want to brag, just buy a second laptop or something. It would be equally as useless as a lot of the upgrades you have.

 

well, if you are pure gamer, definitely, go quad sli or something (nice pc btw, put another 580 there and you will max everything in the coming 2 years ), however, I want to be faster in MATLAB and I think the fastest ram will provide some extra performance (definitely spending more than 200 doesn't make any sense), also consider a top tier notebook GPU is little bit expensive, so 200 dollars doesn't really matter if you want to buy a 580m which is about 700 on ebay right now...

 

I would consider $200 a lot if it meant you could get a bigger SSD, or a better screen or something. I mean fair enough, if you have every other thing in the laptop maxed out, and you have piles of money, sure. I'm just saying that for me, UltraMax FTW Amazo-RAM would be at the bottom of my list of tech priorities.

(And I had a second 580 in there. Sold it, as it wasn't really getting used.)

 

I totally understand, it is definitely different tastes, but I need the ram, however I am sure cl9 @1600 would be enough I guess.. Why did you sell the second 580? I am sure it was so overpowering the games, you did not experience any stuttering at all

 

graz, for you its the amount of ram that is critical not the speed. I bet your life would be infinitely better if you went out and bought cheap ddr3 -1333 ram and plugged in 16gigs or buy 8 gigs to compliment your current 4 gigs (to get 12gigs of ram). Your current 1600 ram will just operate at 1333

There is virtually no difference in performance between 1333 and 1600 ram and stability is assured

OR buy widezu's 8 gigs of 1600's to compliment your current 4 gigs

 

I just didn't need it. With how far my 580 is overclocked, there are very few games I can't max out, and the couple I can't quite... Well I don't care. I put the money into better watercooling components and a server instead.

 

Well I need fast RAM because I do some After Effects/Sony Vegas work and the faster the better for RAM preview

Haven't even come close to using more than 8GB though

 

well, 16GB would be just awesome, however I think I will wait CES 2012, then will see if new rams will be released, I am hoping 2133mhz will be on CES 2012, otherwise I will go with 16GB 1600mhz cl9 or 1333mhz cl7, would be crazy for MATLAB I will definitely ask you guys more when I am buying new ram, thanks all for the input!!

 

Corsair to Release New 4GB and 8GB Vengeance SODIMMs

Any good?

Can't seem to see any heat spreaders

 

The 1866mhz ones have competitive timings better than the HyperX but the 1600mhz are CL9 same as the HyperX ones. Just bought some 1600mhz CL7s today.

Still looking for 1866mhz CL9s.

 

Was there a huge price difference for the cas 7? On the sandy bridge processor, improved cas is the best way to eeke out better performance

 

Quite pricey and they only come in 2GB sticks so you need to buy 4 for 8GB.

 

yupp, I am also looking forward to this answer, widezu, did you see a performance difference?

 

Well I still have the opportunity to get 1866Mhz CL9s but I don't use the iGPU, which the higher ram bandwidth really does help.

Now I haven't run any benches or anything but I just put in my first 4GB of 1600Mhz CL7 ram. Got them from a shop here in London and is literally the only place other than Amazon US where I could find them. Luckily for me, the shop was within walking distance to where I study and cheaper than Amazon. I have another 4GB on it's way from America which I paid very little for thanks to Scot_RC-TEK.

As for speed, people will say might be placebo but I don't think so, apps certainly to startup quicker, much much quicker. HWiNFO would sometimes have a few seconds of non-response when loading all the sensors before, now totally gone. Switching between apps is a breeze. I might hold off getting 1866Mhz ones as it seems like the latency is what matters. I'll report back on stability later but so far so good

 

any noticeable difference between HyperX CL7 1600 and HyperX CL9 1600 excluding benchmark?

 

I was using the CL9 ones before, CL7 ones are definitely snappier.

Edit: So I'm trying to figure out what the XMP profiles are. Seems that 1 is only for 1333Mhz CL7 and 2 is for however high the ram is rated at. Eg: My CL9 ones used XMP 2 and I thought my CL7 ones would use XMP 1 but it seems that it still needs XMP 2 but running at CL7. Just thought you guys should know

 

i got better latency with AIDA64 which is much less than CL7 shown in Anandtech test, does this mean it should be faster than his CL7?

 

I am looking forward for your update widezu I hope things will work fine, I may also do the same if you don't have problems

 

How the hell did you get latency like that? Is it perhaps because you are using 4 sticks? I know it says dual but I'm pretty sure that 16GB is 4 sticks I'm using only 2. Perhaps do the test with 2 sticks? I'll do the test with 4 sticks when my next pair gets here

 

Wonder what the difference is -- I'm getting latency of 49.3ns with HyperX 1600 (9-9-9-27) in my R3? (Aida64 Extreme Edition v.2.00.1700)

 

yes it's 4 sticks, i remember i got similar result with 2 sticks. i run test again and got almost same result.

 

How in the world? What that with 2 sticks? I must try again with that ram, I do have the same ones you have. Mine however do have better Read/Write/Copy speeds.

 

CR1 v. CR2 - whatever that is.

​

 

it seems CR1 corresponds to two sticks while CR2 for four sticks.
http://www.tomshardware.com/forum/176007-30-dram-command-rate-explained
http://www.thetechrepository.com/showthread.php?t=160

 

Does R3 support 32GB? I see Emvees have "configuration" as follows

M17xR3: | i7-2820QM @ 3.4 GHz | 32GB CORSAIR 1333MHz RAM | GTX 580M | 3D 120Hz FULL HD DISPLAY | 256 GB SAMSUNG PM810 + 750GB 7200RM | - || |ON THE WAY: i7-2960XM | 256 SSD OCZ OCTANE |||

Hey, Emvees, can you plz comment on the performance of 32G RAM? what about 1600MHz? You ever considered it?

 

Yes it supports 32GB RAM 4x8GB.

 

Nice... It's pretty pricy though... I'm wondering if it is really worthwhile. There would be sometime before I upgrade my RAM. I can wait for the price drop. But does it really make a difference?

 

well, if you are running the application for it, at some point I was plotting something in MATLAB which needed 10GB, needed to do it on server because of that

 

Make a difference in what? If you are looking for performance then no. Larger ram does not equal better performance. It does however offer a more responsive system when you have many apps open or a processing app with tonnes of plugins. If you do that kind of stuff then some additional ram is good. Personally I think even 16GB is overkill.

If you don't need it but still want to upgrade, get some 1600Mhz ones and upgrade to 8GB. If you don't need that, don't do anything at all. Stick with what you got, save money, buy beer.

 

To answer your question simply, yes, it works.

My guess is that if your asking if it makes a differance, than you don't need it. It's one of those things that if you need it, you know you need it. If your doing some huge CAD work or running multiple VM's then yea you need it, but I would put the money toward an SSD. 8 is enough for me at the moment, and 4 is enough for most purposes.

 

Need Windows Pro or higher to work with 32GB RAM. Home premium goes up to 16GB RAM.

At least that is what Dell told me, if you configure the RAM higher then 16GB an error will pop up.