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Mixing different CAS/Timing DDR3 Memory

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December 26, 2009 9:42:26 PM

Hello,

I bought a set of G.SKILL Ripjaws Series 4GB DDR3 1600 (PC3 12800) (7-8-7-24 CAS 7) for my 1156 build. Now I also am planning to buy OCZ Gold 4GB DDR3 1600 (PC3 12800) (8-8-8-24 CAS 8) because I can get a great deal. Would this cause an issue? Both are DDR3 1600 (PC3 12800) but with different timing and CAS latency.

Thanks!
a b } Memory
a b K Overclocking
December 26, 2009 11:59:09 PM

The different timings should work fine, what im worried about is mixing dual channel with triple channel. I've tried it before and it worked on my board, im just not sure how yours will react.
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a b } Memory
a c 235 K Overclocking
December 27, 2009 1:29:43 AM

overshocked said:
The different timings should work fine, what im worried about is mixing dual channel with triple channel. I've tried it before and it worked on my board, im just not sure how yours will react.


Triple Channel???

Where are you getting that?
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December 27, 2009 1:13:37 PM

overshocked said:
The different timings should work fine, what im worried about is mixing dual channel with triple channel. I've tried it before and it worked on my board, im just not sure how yours will react.


As Ryan said, I'm using dual channels: two different 4 Gb kits (2x2)
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a b } Memory
a c 235 K Overclocking
December 27, 2009 2:32:25 PM

What matters is the voltage the modules run at needs to be the same, you don't mix 1.65v with 1.90v modules, but as long as the voltage is the same, the timings will need to be manually set to the most relaxed settings.
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December 27, 2009 3:09:00 PM

4Ryan6 said:
What matters is the voltage the modules run at needs to be the same, you don't mix 1.65v with 1.90v modules, but as long as the voltage is the same, the timings will need to be manually set to the most relaxed settings.


The G.Skill is 1.6V and the OCZ 1.65V... I'm sure I can run the G.Skill's at 1.65v? I purchased the G.Skills during BF for around $73 (after cashback) and I managed to get the OCZ for $34 (after cashback and 2 rebates)... I don't mind running both at 8-8-8-24 CAS8, although I might be able to OC them both to run at 7-7-7-24 (CAS 8)
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Best solution

a b } Memory
a c 235 K Overclocking
December 27, 2009 7:26:03 PM

Yeah just run them both at 1.65v, then play around with the timings until you find settings both sets work well together.
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