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Mixing RAM of different timings/speed

post #1 of 17
Thread Starter 
Hi, I have a i3 550 and currently have one stick of Corsair XMS3 4GB with 9-9-9-24 timings and at 1333mhz. I was looking to purchase Kingston HyperX 8GB (2 x 4GB) with 9-9-9-27 and at 1600mhz.

Would it be better for me to use both my existing ram plus two additional 4GB sticks (12GB total)? Or would I be better off only using the pair of HyperX and getting rid of my XMS3 (8GB total).

I also plan to overclock my i3 550, so would either one of these options cause a problem?

Thanks.
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post #2 of 17
Sell and get 2 new, or just find another one of yours if you like, but i highly suggest you don't mix.
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post #3 of 17
could you? yes, it is possible. I've mixed and matched a few sets of RAM, only thing that happened was that the faster RAM downclocked to match slower RAM (obviously). But SHOULD you mix 'n match RAM? not really, RAM is so dirt cheap, would definitely recommend you sell your current set and pick up 4x2 RAM
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post #4 of 17
Mixing RAM also means you can't use dual channel, which slows down your PC slightly.
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post #5 of 17
Thread Starter 
Price isn't an issue, I can get the pair of HyperX for around $20, and I have no idea how I would sell my existing ram because no one locally would want it (prefer not to sell online either because I would need to ship it). Essentially it's between using my XMS3 with the HyperX or just let it collect dust.

I read before that its fine to mix, just that it'll downclock itsself, and in that case it would mean 4GB more of ram>267mhz

Could you guys tell me why it's not a good idea to mix? What would happen?
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post #6 of 17
Timings won't match. There are a lot more timmings than the
9-9-9-27. It may cause stability issues.
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post #7 of 17
here's a random question. What exactly are you doing that requires you to have more than 4GB of RAM. Better follow-up question, what are you doing that requires you to have more than 8GB of RAM? 4GB of RAM is plenty of RAM for 95% of people, 8GB of RAM is fine for 99% of people. What do you do with 12GB of RAM that would make you consider using two different sets of RAM?
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post #8 of 17
Thread Starter 
I often do video editing and photoshop, which is why I wanted to upgrade my ram (that's ontop of the fact that I can grab 2x4gb for around $20, I would've gotten them regardless because of the deal) I probably wouldn't ever need more then 8gb ram, but I'm just wondering if using my existing ram with my new would cause a huge drawback.
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μBlack&White
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post #9 of 17
Quote:
Originally Posted by trumpet-205;15606866 
Mixing RAM also means you can't use dual channel, which slows down your PC slightly.

I've mixed 1333 and 1600 before on a second rig and it was in dual channel. confused.gif
    
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post #10 of 17
Quote:
Originally Posted by Calipso;15607416 
I've mixed 1333 and 1600 before on a second rig and it was in dual channel. confused.gif

My current motherboard's manual states different RAM will not activate dual channel. It all depends on each motherboard.
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Misaka
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