Can i pair G.SKILL Ram with my Corsair Ram ?

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patriks91

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Currently my system has 8 GB Ram (4gb X 2) installed. Its an Corsair Vengeance Ram.

http://www.corsair.com/en-in/vengeance-4gb-single-module-ddr3-memory-kit-cmz4gx3m1a1600c9

I wanted to know if i purchase G.Skill Ripjaws X- 8GB Ram (http://www.newegg.com/global/in/Product/Product.aspx?Item=N82E16820231567&cm_re=Rams-_-20-231-567-_-Product) will it be compatible with my Corsair Ram ?

Both the Rams have same specifications:

Type- 240-Pin DDR3 SDRAM
Voltage - 1.5V
Speed - DDR3 1600 (PC3 12800)
Latency - 9-9-9-24

Can someone please help me out here :) ?
 
Solution
Tradesman1
Yes, they would run in Flex. Flex mode takes the equal total of each channel and runs it in dual, if unbalanced - say 6 in one channel and 8 in the other then 12 (6+6) would be in dual and the odd 2 in single
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Ironsounds

Ironsounds

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Hello... It can, You will need to fight your BIO's for SINGLE channel MODE using 3 sticks VS 2-4... having the same settings will be good... but pairing with another pair would be Best.

1) Does your BIO's have a single channel memory mode?
2) will your existing sticks work in single channel Mode?
3) check your MB manual/PDF for Single channel slot locations/settings
 
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patriks91

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My motherboard manual say this:

"Dual-Channel mode Population Rule
In Dual-Channel mode, the memory modules can transmit and receive data with two
data bus channels simultaneously. Enabling Dual-Channel mode can enhance system
performance. The following illustrations explain the population rules for Dual-Channel
mode." (DIMM2 and DIMM4 support dual channel mode i guess)

#IMP - DDR3 memory modules are not interchangeable with DDR2, and the DDR3
standard is not backward compatible. Always install DDR3 memory modules in
DDR3 DIMM slots.
To ensure system stability, memory modules must be of the same type and density
in Dual-Channel mode.
Due to chipset resource usage, the system will only detect up to 31+ GB of memory
(not full 32 GB) when all DIMM slots have 8GB memory modules installed.

 
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Tradesman1

Tradesman1

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What mobo/CPU? First there are no guarantees that adding DRAM will even play with the old, even if you get another set of the same identical model (more in my article, item 2 here:

http://www.tomshardware.com/reviews/ddr-dram-myths,4155.html

That said, if the mobo is relatively new (last few years), and if the sticks will play, YES it is possible to run a 2x4 along with a 1x8GB and all be in dual channel mode, via Intel's Flex mode or AMDs adaption of Flex, (more on FLex inthis, item 7, here:

http://www.tomshardware.co.uk/ddr3-dram-faq,review-33220.html

To do so, I'd start with the 8 stick in slot 1 next to CPU, and the 2x4GB in slots 3-4 which puts 8GB in each channel, and Flexx takes over
 
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patriks91

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Thank you for the explanation, will the flex mode works automatically if install the rams as you suggested ?

I have an MSI Z97 Gaming 5 MOBO and Intel i5 4690 CPU. Also what if i install the rams randomly ? so does that work in single channel mode or it wont work ?
Sorry i dont have much knowledge about this :(. Any help would be great :)
 
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bailojustin

bailojustin

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From my knowledge the motherboard he has does not support FLEX, it only supports dual channel. After reading the manual and OP's post the ram would work as 12gb, if you already have 2 SINGLE channel corsair vengance ram sticks in place then thats your 8GBS there, they just are not working in dual channel mode as the ones you linked are not dual channel ram. Correct me if I am mistaken

If you were to add another ram stick then it would just further increase your ram as long as the timings and everything are the same. It theoretically should just boost your ram another 8gb if you buy a 8gb stick with the same timings and everything.

You would have to disable xmp as im pretty sure both ram sticks may have different xmp rating entirely.

What I recommend is just buying a pair of dual channel ram like G skill instead of a single stick, and you may even be able to get your Corsair single modules you linked earlier to run in dual channel.
this way you will have 4 slots both utilizing the dual channel for maximum output and performance.

If the flex mode is compatible with the board then you will still be better off buying a pair of dual channel rather then single, that way you can utilize more of the GB then if you were to run in flex mode.

This will also eliminate any future problems that may arise if you plan on overclocking, or just issues period.
 
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Tradesman1

Tradesman1

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___________________________

First yes the mobo supports Flex, flex is in all Intel mobos going back for years now.. Also to be brief - there is no such thing as DUAL Channel DRAM - DRAM is DRAM each stick is a single 64 bit device, depending what mobo and CPU combo you have that stick can run single channel or paired correctly wiith additional sticks as dual, tri or quad. Marking packages a dual, tri or quad is just indicative of the number of sticks. More on this in my FAQs article Items 7 - 8 primarily

http://www.tomshardware.co.uk/ddr3-dram-faq,review-33220.html
 
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bailojustin

bailojustin

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Okay, so even if it is stated as a single module or a dual channel module, its all the same, just labeled that it can work in pairs with the same corresponding sticks? Thank you for the information, and as far as quad goes, why do they have quad channel ram if you can just buy 2 dual channel configs and have them run in quad according to what you're saying? I am trying to understand this better for myself to help out others in the future.
As far as flex goes, I thought tthat flex was a memeory program in certain motherboards that could be enabled in the BIOS, as on a few I have seen the option for single/ Dual/ Flex. So boards with intel chipsets automatically have the feature for flex ram embedded in the motherboard?

Edit:After reading the Linked information on flex, it makes much more sense now as a single stick is a 64 bit device, when run in dual channel sinceddr3 ram is double data rate, 64x2 so 1 stick is 128 Bit when installed? So when in dual channel it runs them at 256bit. in flex it would run 1 stick at 64 while the others at 192 bit assuming you have 3. Or would it be 1 at 64 bit, and the 3 at 64+64+64X2(or 3 for tri)?
 
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Tradesman1

Tradesman1

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Your first thing about 2 two stick sets instead of a 4 stick set, falls back into there is no guarantees that two sets will play together - even of the same exact model - DRAM is sold in packaged sets that have sticks that were tested to play together. You can pull sticks righ off the assembly line and they might or might not play - that's why they test. We see threads all the time of people who have done as tou say and bought 2 Two stick sets rather than a 4 x to save a few bucks, then find they won't play - the 4 stick set costs more as it takes more testing to find 4 sticks that will play rather than simply finding 2. A lot if not most of the points you mention are covered in the FAQs and Fiction article I wrote, this has links to both parts:

http://www.tomshardware.co.uk/answers/id-2741495/ddr3-faqs-fiction.html
 
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bailojustin

bailojustin

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Thats right, I remember someone telling me once that every single ram stick is different, Even if made the exact same way and everything is the same, at times they will all be different and some will work differently. Thanks for clearing that up for me tradesman, Hope this all helps OP aswell.
 
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