Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Can i Mix RAMs with different Brands?

03 Aug 2016   #1

Windows 7 ultimate x64
Can i Mix RAMs with different Brands?


I am planning to upgrade my PC RAM. I currently have a 2 GB RAM. Details below

Can i add a crossair RAM with 1333 Hz?

My System SpecsSystem Spec
03 Aug 2016   #2

Windows 7 Professional x64

Quote   Quote: Originally Posted by Ijas619 View Post
Hey there Ijas619 :)

What's the specific memory unit that you have in mind.
Typically you shouldn't have any issues using different branded RAM sticks as long as they run on the same voltage, same clock speed (frequency) and fit in the DIMM slots.

You can easily check with the motherboard's manual if the desired memory is compatible with it or not. Though it is not really recommended to have different memory units in the DIMM slots you should be able to run your computer.

My System SpecsSystem Spec
03 Aug 2016   #3

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

If the specifications are a very close match, it might work.

And it might not. You'd have to try it to know for a fact.

That's why it's recommended that you buy RAM in pairs of the same exact brand and part number.
My System SpecsSystem Spec

03 Aug 2016   #4
Layback Bear

Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64

My System SpecsSystem Spec
03 Aug 2016   #5

Windows 7 Pro 64 bit

In theory any combination of compatible RAM modules should work. But things don't always work that way in the real world. Modules from different manufacturers can cause problems. No way of knowing without trying it.
My System SpecsSystem Spec
03 Aug 2016   #6
Arfer Daley

Win 7 Pro 64Bit

in the old days you could get away with it or i did anyway but these days the motherboards have that many settings for ram you could run into problems good luck from past experience now I always buy in pairs from the same makers
just to be safe with these new boards
My System SpecsSystem Spec
05 Aug 2016   #7

Windows 7 Profession 64-bit

Quote   Quote: Originally Posted by Arfer Daley View Post
in the old days you could get away with it
Wow. The exact opposite is my experience. In the old days, you had to go with the exact same manufacturer, size, model number, and even the same lot number or production run.

In the old days, packages of "dual channel" RAM contained RAM sticks that were actually individually tested at the factory, matched and paired for compatibility, then packaged together - and at a higher price too because of that special testing.

As I noted in that thread Layback Bear linked to,
Quote   Quote: Originally Posted by Itaregid
Modern motherboards and CPU memory managers are much more capable of supporting mixed RAM than those of years ago. And modern RAM manufacturing techniques ensures RAM (from just about any maker) much more closely adheres to published specifications. So "in theory", you can mix and match brands to ensure compatibility as long as you buy RAM with compatible specifications. And in practice (again, with modern hardware), when you buy RAM with the same specifications as existing RAM, it does work's - most of the time.

But for your best odds to ensure total, trouble-free compatibility, I agree with LayBack Bear and recommend your new RAM either matches your old exactly, or you replace your old with all new.
I note today, the RAM in packages marketed as dual channel (or triple channel) are not individually tested and matched. They don't have to be because manufacturing techniques have improved so much in recent years that every stick of the same model coming off the production line (regardless of lot) match published specs within such tight tolerances, they don't need expensive, time consuming individual testing and matching.

They are packaged and sold as dual or triple as a convenience to consumers, and because it saves in logistics costs (packaging, shipping, inventorying, etc.). That's the only reason.

Now until Man can create perfection 100% of the time, there will always be exceptions. So to ensure compatibility, it is still best to buy the same brand and model number, when you can.
My System SpecsSystem Spec

 Can i Mix RAMs with different Brands?

Thread Tools

Similar help and support threads
Thread Forum
HD: Reliability Of Different Brands/Models ?
Hello, Regarding a new 1 TB External HD. There seem to be a zillion different reliability surveys out there. You folks are the real experts, so let me ask here: Is there any consensous as to which Brand and Model is considered "the best" regarding reliability for an external 1 TB (or 1.5...
Hardware & Devices
Using 2 monitors with 1 GPU. OK to use different 2 GPU brands for each
My video editing software renders much faster with compatible GPUs. I recently upgraded to a nVidia GTX 560 Ti which improved rendering 16%. I've like using two monitors but the second monitor drags down rendering performance of what it could be. I was wondering if using my old GIGABYTE Radeon HD...
Graphic Cards
Good SSD Brands to buy?
Im looking for an SSD, At least 60Gb, mainly just for the OS because i heard it speeds up your computer, Are there any recommended brands for SSD's that you guys would be willing to share? Thanks.
Hardware & Devices
Anyone recommend brands of motherboard
Anyone recommend a brand of motherboard they usually go with, AMD AM3 that support amd phenom II x6 cpus? I was looking at this ASrock 870 extreme3 I hear people with good reviews but not very great at O.Cing but I like Japanese made Items that's probably why im siding with them and its only 99-109...
Hardware & Devices
how do the brands stack up?
i suppose this is more of an opinion. i was just wondering how the different computer brands stack up to each other in terms of reliability. just take each of them as an all-in-one type of computer and see how they stack up ya know. right now im using an acer and ive had it for about 3 years...
General Discussion

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 04:07.
Twitter Facebook