Kingston Hyperx 1866mhz in G74

Hey guys..

I just bought 16gb of kingston hyperx 1866mhz memory for my g74sx-xr1. Installed it, system properties shows the 16gb, but for some reason its still running at 1333mhz. Ran WEI and its still at 7.6 , read that it was suppose to go up to 7.9 . Installed CPU-Z and the DRAM frequency is shown at 665.3mhz (which is 1333mhz), but the max bandwidth of the memory at 889mhz (which would be about right for 1866mhz). At this point i'm not sure what else I can do, even tired switching memory slots for each dimm.

Any of you guys installed this ram in your g74? Please help

 

I'm going to assume that the laptop only supports up to 1333mhz.

 

The memory speed is controlled by the CPU. So yes, if your i7 only supports 1333 speed, then that's what you get.

It's why I haven't upgraded my ram. The only good reason to upgrade ram is to upgrade to a lower latency, not speed.

If you had done research ahead of time you would have also seen that latency has more impact than speed with ram. Difference between 1333 and 800 isn't much when the 800 speed ram is of lower latency.

 

thanks for the info. I did do a little research, but then again I'm no expert I assumed that if its plug and play memory designed for 2nd generation i5 and i7 it would work on my g74. Then again in the feedback section of this ram on newegg Newegg.com - Kingston HyperX 8GB (2 x 4GB) 204-Pin DDR3 SO-DIMM DDR3 1866 HyperX Plug n Play Laptop Memory Model KHX1866C11S3P1K2/8G, you can see mostly positive review with the ram working in many laptops such as HP-dv5-2135dx, DellL xps 15, w520 Thinkpad, HP DV7, and M18x with the same core i7-2630qm.

 

I have also read that this ram works on the g73sw, so the same core i7 2630qm.

 

Chastity may know more about it.
Iirc someone on rog forum tested these ram and got a pretty nice increment of 5%.
I may be wrong but I remember something along the lines.

 

SB CPU's do support 1866, and generally see a nice little boost from it. As to why its not running at the higher speed im not too sure, have you checked the BIOs?

 

yes I have, I even upgraded to bios 202. I'm still at 1333mhz. There are no options in bios to change the clock speed.

 

A nice boost in what? Benchmarks? Real life performance shows no benefit of faster memory on a system with locked CPU and a discrete GPU, as memory speed is never the bottleneck.

 

Perhaps only benchmarks then; I remember Chastity posting a thread about it when she tried some in an SW.

As for your last comment, I remember a couple of years ago (or whenever XPS was still Dells gaming line, and they hadnt bought Alienware yet) on an XPS 15 I nearly bought, its memory speed was infact the bottlneck, there were youtube videos of it playing games showing the RAM as being the fault.

Though your statement would certainly be correct for the RAM that all of our current systems come with

 

If you got the 1866 PnP modules 4x4GB, and replaced all the memory sockets with these, then your memory should be running at 1866. If not, then something is wrong with the memory. Can you check to see if you get 1866 with only 8GB installed? Maybe see if one set isn't working properly.

 

I have the 4x4GB 1866 pnp. Spend the past 2 hours trying out all of the possible combinations with the ram. Strange thing is that both sets work fine alone (at 1866mhz..got 7.9 WEI) but when I put them in together (4x4) they drop back to 1333mhz. Also tired 12gb (4gb x 3) but it stays at 1333. Any ideas why 16gb does not work, while both sets of 8gb alone do?

 

In my g73sw I didn't get full 1866 memory speed with these kingston modules until I changed processor to intel 2820. However is was still faster than 1333 with the original cpu.

 

ive got 2x4g of these 1866mhz ram.. and having crashes and bluescreens.. done memory test and nothing wrong with the sticks.. Updated to the new Bios.. still getting crashes. *sigh* And I was sooo looking forward to a nice gaming session.. instead.. bluescreens and ripped out hair. Any "fix" to this?

Edit - Question, Does the G74 motherboards support 1866mhz? Can it power it? Why did my system go unstable because of this type of memory?

 

You must have some mismatched memory modules...

I have the G74SX-A1 here w/ 4x4GB modules and stable @ 1866. Contact Kingston or your seller, maybe you need to replace them for new ones.

 

Silly question... What ram slots shall they be placed in? Ive had them - one on each side. in slot 1 & 2. That gave me 7.9 in Win Experience but gave me crashes.. Ive now put both on the left slot. in 1 & 3 ... this takes the win experience down to 7,4 again.. but seems stable (still testing)

How am I supposed to place them?

Where can i see what clock speed theyr running in. the BIOS does not show anything?

Want to try the memory out properly before I send them back and have them replaced.

-- Ive got the i7 2630Qm . Maybe its not compatible with this memory?

 

HWINFO64 can show you the timings for each stick.

 

@Chastity - So you have the same CPU in your G74? i7 2630Qm? And it runs stable? Some say the 1866mhz memory is not compatible with the i7 2630Qm? I am confused

Ive sent the 1866mhz back and can choose between a new pair or a set of 1333mhz ones instead... need to make up my mind.

Help please?

 

kingston hyperx 1866mhz ran stable on my g74sx 2630qm, so I would say that the 2630qm is compatible with the kingston pnp memory. However I did have problems running 16gb, for some reason It only ran as 1333mhz, cant figure it out. So for now I'm running 8gb (2x4gb) 1866mhz and its running fine.

 

ok cool! Have you been doing some longer gaming sessions etc? and its no worries?

 

yeah, mostly bfbc2 with no problems. But I've read that some other people were having some crashes and that it was unstable while gaming.

 

I'm running 16GB and have gamed for hours with no hiccups

 

I have a g74sx with 4x4GB Kingston PNP 1866 ram as well and have problems getting all 4 sticks to run at the right speed. I have tested each stick individually and even tested two sticks at a time with great success. None of the ram is bad. It just won't run at the right speed when all 4 sticks are in the system.

I called ASUS tech support only to be told that the max supported mem speed was 1333 and that there isnt any way to get 1866 with all 4 sticks in.

Here is to hoping this is a bios issue that will be fixed in the near future.

 

I ran 16GB of that very same RAM with no problem, in the 3DE edition. ASUS Tech Support needs an update on their info. :x

As for getting the RAM to work properly, you could try resetting the BIOS to defaults, and if you haven't already, update to BIOS 202.

 

Hey Chastity, just reset the bios to defaults and it is version 202 T_T. I wonder whats happening here. All sticks are currently running at 665.2mhz according to hwinfo64.

As far as I see there isn't a way to set it manually in bios either....

 

Then get new sticks, because they should just pop in and work at 887 (1866)

 

1886 Mhrtz is actually 887 only ?

Can someone explain me quickly how does that work ?

I'm currently trying to find a way to boost my G74 , and the stock ram i got on it seems to be samsung à 667 mhrtz ( 3dmark say so ). Will i get a real boost with the HyperX ? Is there a huge difference from 12800 to 14900 ? Cause they are ( local retailer ) near twice the price ... 60€ for 8Gb 12800 , 100 for 8Gb 14900

Are the 12800 still a worth 60€ upgrade ?

 

took it back out from my g74 and installed it in a alienware with the same cpu (2630qm) and all 4 sticks ran just fine @ 1866MHz, so there was nothing wrong with kingston hyperx sticks.

 

The 1866 runs @ 933 not 887 maybe a type mistake. It is what DDR means (double data rate)

Can somebody here help me? I need a dump of those memories with Thaiphoon Burner or SPDtool or EVGA SPDtool which seems to work for you laptops.

Thanks in advance

 

I just tested a 16GB setup here on a G74, and I find that in a 4x4GB config the memory speed drops to 1333. In a 2x4GB config, we get 1866.

I'll forward my findings to R&D and it may be fixable via a BIOS update. In the meantime, if you need the 1866 speed, use a 8GB config for now.

Case: 1601965

 

That's what I've been saying Chas....
A new bios would be wonderful though. Thank you for your continued support!

 

Could be awesome to have a bios update

Btw , nobody answer my last question , i have stock 8GB Ram , 1886 Ram for 8gb ( assuming it's far enough for gaming ) , will i get a 100€ worth boost ?

 

I have found the faster RAM improves your lower FPS and makes gameplay smoother. It doesn't do anything for max FPS.

 

Sorry , i didn't understood.

Can you be more precise ? You said it won't boost game to max FPS ( wich i assume that ram will not give you a huge framerate improve ) , but the game feels more smooth at lower fps ? So , if you're not at max fps , you get a few boost one ?

I don't get it.

 

To me it seems like Chas is saying that your minimum fps will improve, but it won't do a thing for the max fps you get. Min fps sometimes can break the gameplay so i assume it's what she means by smoother.

 

correct

It helps with things like texture transfers, etc, so there is less lag in feeding the GPU what it needs. People have reported that it can eliminate microstutters, increase min FPS rates, and reduce FPS dips, sometimes even eliminate them.

case: 1622732