Doubt about DDR4 memory

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nimdahos

Commendable
Nov 20, 2016
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Hi community, I'm officially new here, after read topics being no registered user.

I'm building a ecosystem based in X99A with an Intel 5820k i7 processor. I bought a Mobo MSI X99A Gaming 7 that theorically supports frequencies of 2133, 2400, 2666. 2800, 3000, 3110 and 3333 and a max capacity of 128 GiB.

I want buy the Corsair Vengeance LED memory (4x16 GiB) but I have doubts about:

- If I buy 3200 frequency, it can run
in the other frequencies specified in Mobo, as 2133, 2400, 3110 or 3333? The mobo have multiplier of 100/125/167.

- This memories run at 1.35v, but Mobo says about 1.2v, I understand that is with 2133, and above of this, then 1.35v. I'm correct in this?

- Finally, Corsair Vengeance LED 3000 or 3200 (or both) are compatible with MSI X99A Gaming 7 Mobo?

I will continue researching, I believe in your expertise!

Thanks and hope help in things that I know.

- Nimdahos.
 
Solution
MeanMachine41
Your MB officially supports 2133MHz and will also support higher frequencies however this will depend on the strength of the IMC (Integrated Memory Controller) on your chip.
3200MHz and 64GB is a considerable strain on the IMC and considered an OC.
The MB has a max capacity of 128GB however 16GB is sufficient for most requirement and gaming.
Extra memory above this is required if you are editing large video files or rendering large files.

There is little to gain with higher frequency RAM and Primary Timings and Voltage would need to be set in Bios or if the DIMMs you are using have an XMP profile.
Go here for the MB QVL which lists all ram that have been tested with your MB...
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MeanMachine41

MeanMachine41

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May 8, 2014
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Your MB officially supports 2133MHz and will also support higher frequencies however this will depend on the strength of the IMC (Integrated Memory Controller) on your chip.
3200MHz and 64GB is a considerable strain on the IMC and considered an OC.
The MB has a max capacity of 128GB however 16GB is sufficient for most requirement and gaming.
Extra memory above this is required if you are editing large video files or rendering large files.

There is little to gain with higher frequency RAM and Primary Timings and Voltage would need to be set in Bios or if the DIMMs you are using have an XMP profile.
Go here for the MB QVL which lists all ram that have been tested with your MB:
https://www.msi.com/Motherboard/support/X99A-GAMING-7.html#support-mem
Corsair, Kingston, GSKill are all good quality memory and its best to select a kit from this QVL list.
Not sure when the QVL was updated and kits with 16GB and above are now available.
You would probably have to update your Bios to H.F version for improved memory compatibility.
 
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Solution
Tradesman1

Tradesman1

Legenda in Aeternum
Jun 5, 2013
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The key will be if your individual CPU can handle 64GB of 3200, (it will run on X99 I have 64GB 4x16, 3200/14) but it comes down to the CPU, the 5xxx CPU often had trouble at 3000 and up, so if you try count on needing an OC of the CPU as well as will prob have to adjust the VCCSA voltage and possibly take the DRAM voltage up to 1.4, (just to help you prepare)
 
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nimdahos

Commendable
Nov 20, 2016
3
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1,510
Exactly, Intel 5xxx CPU support as maximum 64 GiB of RAM at 2133 MHz... with OC I understood that 3000 MHz are the maximum to 5xxx, as said in this thread: https://linustechtips.com/main/topic/555526-i7-5820k-with-ddr4-3000mhz-ram/.
The limit to 69xx seems be 3200 MHz.





 
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