Will this RAM speed work with my motherboard?

AxelMagnus · Oct 28, 2013

Hello,

I have an ASUSTeK P7P55 LX motherboard and I want to install 4 x 4 GB of RAM.

Can I install Kingston 16GB DDR3 2133MHz (4x4) HyperX?

Crucial's system scanner says "Memory Type: DDR3 PC3-10600, DDR3 PC3-12800, DDR3 PC3-14900, DDR3 (non-ECC)" for my motherboard, while I understand the speed on the Kingston RAM is PC3-17000.

Will that work? Will it be optimal, or should I consider buying another type of RAM?

I'm upgrading my GPU and installing an SSD now that I'm at it to GTX 760 and SanDisk Ultra Plus. My motherboard is still up to the task?

xXDahChubChubXx · Oct 28, 2013

nah bit fast for your motherboard. Your motherboard only supports 1600MHz. buy cheaper RAM @ 1600MHz RAM which is cheaper and will work better.

Tradesman1 · Oct 28, 2013

Your mobo supports up to 2200 DRAM, big thing with 2133 sticks will be you will prob need an OC of the CPU to run at 2133, the mobo specs are here:

http://www.asus.com/Motherboards/P7P55_LX/#specifications

AxelMagnus · Oct 28, 2013

Tradesman1 :

I haven't done any overclocking before, but is this what is called memory controller overclocking? And isn't the memory controller situated directly on the motherboard, not in the CPU?

Anyway, if I change Ai Overclock Tuner to "D.O.C.P." and change DRAM O.C. Profile to "DDR3-2133MHz" after I've installed 2133MHz sticks, will that work? Are there any danger involved in doing this?

Or should I rather go for the "safe" alternative proposed by xXDahChubChubXx?

The price difference is completely negligible, but I've heard the performance increase can be about 5-10%. So if it's safe and works, it's probably well worth it, it seems?

Tradesman1 · Oct 28, 2013

Your mobo is an 1156, and the CPUs have the MC (memory controller) built in, not sure what CPU you have, and as mentioned it may require an OC to run the DRAM at full freq. But yes, you would enable the DOCP and select the 2133 option, it should read the required info for setting the DRAM out of the DRAMs SPD and set things accordingly

AxelMagnus · Oct 28, 2013

Tradesman1 :

I have an Intel Core i5 760:

I think I understand. I have to ramp up the CPU clock frequency as well, which is probably the setting under "CPU Ratio Setting" in my BIOS. If I don't overclock, and my clock speed is inadequate for running the memory sticks, how will I know? Will my performance simply be a bit limited, without me being warned, or will the computer fail to boot?

Tradesman1 · Oct 28, 2013

It will prob just give you an error message the ' The Over clock failed' or something like that and the BIOS will reset the DRAM to the default

AxelMagnus · Oct 29, 2013

Thank you for your help.

I ended up simply filling up the two empty slots with the same as the used ones - 2x 2GB 1600 MHz sticks. The reason being both price, and because of uncertainity whether there is any point having higher frequency on the memory at all: http://www.tomshardware.com/answers/id-1795015/system-memory-overclocking-cpus-die-memory-controllers.html#.

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Will this RAM speed work with my motherboard?

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