Gigabyte GA-P55A-UD4P with 2 x G.Skill 4G and 2 x OCZ Gold 4 Gb setup

exm

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Nov 24, 2009
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Hi,

I'm installing my Gigabyte GA-P55A-UD4P and am trying to find a stable and fast setup. Initially I bought 2 x G.Skill 4 Gb 7-8-7-24 CAS 7, but I found a great deal on 2 x OCZ Gold 4 Gb 8-8-8-24 CAS 8 as well, so now I have both sets totaling 8 Gb. A few questions:

1. I'm confused about channels vs sockets. My mobo has the following setup:
Channel 0: DDR3_1, DDR3_2
Channel 1: DDR3_3, DDR3_4

The manual states that with 2 modules, I need to use DDR3_1 and DDR3_3. Does this mean I need to install my G.Skills in DDR3_1 and DDR3_3, and my OCZ in DDR3_2, DDR3_4 (so different type of memory per channel)? Or should the G.Skills be in DDR3_1, DDR3_2 and the OCZ in DDR3_3, DDR3_4 (each channel has the same type of memory)

2. Can I assign the different memory timings for each set of RAM or do I need to set the G.Skill to the lowers timing and CAS settings of the OCZ?

Thanks so much!
 

Henry Chinaski

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1. You must install the pair of modules in the same channel. Therefore, the ocz memory could be at rows 1 and 3, and the Gskill ones at rows 2 and 4. (Keep the same color rows for each memory brand)

2. No, you can't assign different timings for each one. The lower speed modules will always limit you. Anyway, you can try to put the timings at 7,8,7,24 because is not a big difference so it could work.
 

exm

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Thanks. I have them currently setup like you said (G.Skill in Blue - rows 1 and 3 and OCZ in white - rows 2 and 4.). The manual just confuses me by saying that channel 0 is actually row 1 and 2, and channel 1 is row 3 and 4. Might be a misprint.