Solved Selecting RAM for GA-X79-UD3

Gigabyte / P35c-ds3r
June 29, 2012 at 06:43:08
Specs: Windows 7 ultimate 64 bit, 3 GHz / 4094 MB
Hi Everyone,

I am looking to build a new computer in the near future (in a months or so time). I have put together my list of components, but was hoping to get some help with selecting the memory. Here are the components i am thinking of buying:

Mobo: GA-X79-UD3 Intel X79

PSU: Thermaltake Smart Power Series - 750

CPU: Intel Core i7-3820 3.60GHz

GPU: Geforce GTX 560

RAM: G.Skill RipjawsZ 16GB

My question really is about the RAM, i have been doing some searching online and havent really been able to find any of the memory that is on the 'Supported Memory List' on Giga-Bytes website.

The memory i have chosen seems to be slow, or am i misunderstanding the timings?

The timings for this memory is 9-11-10-28 (PC3-17000)

The machine will be used for:

Writing software
some video editing
But essentially it will be used for everyday computing, Word, Excel, Internet, watching films.....

i looked on and the only memory they had for this machine was £400, RAM timings were 9-9-9-27 i really cannot afford that.

i'd really appreciate if someone could just have a quick look at the timings and tell me if these are considered to be fast or slow, i understand it may not be as straight forward as that, but some guidance or even if you could suggest something else would be very helpful.



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June 29, 2012 at 08:06:00
They are the fastest RAM in terms of bus frequency.

I am a hardware guy not a software guy but i try to help.

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June 29, 2012 at 11:28:10
✔ Best Answer
In case you are unaware, the i7's memory controller only officially supports DDR3-1600, so if you buy DDR3 -2133 & hope to run it at it's rated speed of 2133MHz (1066MHz frequency), you will have to overclock. If you have no intentions of overclocking, I suggest you get DDR3-1600 & choose a cheaper motherboard based on a different chipset.

Four High-End Quad-Channel DDR3 Memory Kits For X79, Reviewed

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July 2, 2012 at 01:07:00
That answers my question perfectly, thank you very much. i will opt for the DDR3 - 1600 memory as i have no intention of overclocking.

Thank you very much.

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