Crucial UDIMM 8GB RAM

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Surreal_X

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Feb 13, 2012
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Hello everyone,

I had a custom build almost a year ago, and i decided to get a new RAM today, it's the same model that i had before which is: Crucial 8GB DDR4 - 2400, but i just noticed that there are a couple of things that looks different between the ram i had before, and the one i got today:

- The packing of the new one looks is bigger, the older one had a package as big as the memory stick only (not a big deal, i know).
- The older packaging have UDIMM mentioned, the new one doesn't.
- The new one have "Ballistix Sport - Gaming Memory" text on the packing, the older one does not.
- The new one have "Ballistix by Micron", while the older one have "Ballistix by Crucial".

What is common between both sticks, is that they both have the same model number (BLS8G4D240FSC), and same basic info (8GB DDR4 - 2400 1.2v).

So my question is, Does the fact that one of them have "UDIMM" mentioned, it means that the other one isn't?, are the both sticks compatible to work with each other?, "Ballistix by Micron" vs "Ballistix by Crucial", does it mean that one is less genuine or something?

A picture that could make things clear:
SnFvvPJ.jpg


Current Build Specs:
- Motherboard: Asus B150M PRO GAMING.
- Processor: Intel Core i5-6500 - LGA1151.
- RAM: Crucial Ballistix 8GB DDR4 - 2400 UDIMM 1.2v
- VGA: AMD Sapphire Dual-X R7 265.
- Disks: SSD: Corsair Force LS 120GB Sata III + HDD: Western Digital (WD) Caviar Black WD1002FAEX 1TB 64MB Cache.
- PSU: SeaSonic S12II Bronze 520W 80 PLUS Certified PSU.

I hope someone would help me with this one, before i get to install the new RAM, and run into some issues or something.

Thanks! :).
 
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thx1138v2

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Jun 18, 2011
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There's no way to tell since the Micron packaging doesn't really show any info. Even if they are the same part number they may not work together. Manufacturers change specifications as needed. One could use higher density RAM chips on the module than the other. In that case they won't work together. If you can see the chips and read the part numbers on them, that would help to clarify somewhat. They'll have a better chance of working together if they use the same chips. If not, it's a toss up.

It's usually best to buy multiple RAM modules together as a "kit". If you can, I recommend sending back your new module and buying a paired kit. They will have been tested together to insure they work together.
http://www.hardwaresecrets.com/memory-upgrade/
 
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Surreal_X

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Feb 13, 2012
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Hey guys, thanks for clarifying things up, i got a single stick back then, because i couldn't afford more, and thought that i could add another one whenever i could. I can try to get a 2X8GB kit or even a single 16GB stick, but then my current single 8GB one would go to waste..

I added new pics that might help you guys get to know more information about both models:

The older one:
UelcPV4.jpg


The newly purchased:
UOkEOeb.jpg


Thanks!
 
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thx1138v2

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Jun 18, 2011
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Use 2 modules rather than 1 for better performance. You must have two modules installed to take advantage of the dual channel feature of the motherboard. Each module has a 64-bit wide data interface. With one module that's what you get. But with 2 modules installed, the "dual channel" feature makes it appear to the memory controller as one 128-bit wide interface, meaning it can read/write 128 bits at a time instead of 64 bits.

RE your one module going to waste - it will still be wasted if the modules don't work together. I still recommend buying a 2 module "kit".
 
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Surreal_X

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Feb 13, 2012
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Hi thx1138v2, I was at the shop today, but unfortunately i wasn't able to find the 2x8 kit around here, It's either one 16GB stick, or an individual 8GB stick of the same model, so, i returned the newer model, sold the older one, and got the single 16GB stick, but after seeing your comment now, i am not sure if that was a good decision :/. Would the performance be noticeable between a single 16GB RAM vs 2x8GB sticks?
 
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Surreal_X

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Feb 13, 2012
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Sorry to bump this again, but to sum things up, i have two options right now:

- Keep the single 16GB memory stick, avoid the hassle of running into compatibility issues, but wouldn't be able to take advantage of the dual channel feature.
- Get 2 single 8GB sticks (Not a kit) of the same model, take the risk that they may or may not work well together, but if they did work, i would benefit from the dual channel performance.

What do you guys think is the "best" option in my case?

Thanks!
 
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