Ram compatibility issue

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rottensnake

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Mar 9, 2015
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Hello,

I've been doing some research lately and putting some builds together on PCPartPicker for fun. Here is the link to my build cause I can't figure out how to export it in plain text right now: http://pcpartpicker.com/p/3dtcLk

I keep running into this note at the end of my build about a compatibility issue:

****The G.Skill Ares Series 16GB (2 x 8GB) DDR3-2400 Memory operating voltage of 1.65V exceeds the Intel Haswell Refresh CPU recommended maximum of 1.5V+5% (1.575V). This memory module may run at a reduced clock rate to meet the 1.5V voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum.****

First off, is the G.Skill Ares memory decent stuff? Or is the quality sketchy? I don't know much about brands of RAM but this was recommended to me based on the low profile that I would need because of the Noctua cooler. I'm assuming the issue is arising because it is clocked at 2400 MHz instead of 1600 or 1866 or whatever. My question is will it work right out of the box in this configuration? Or will I have to adjust something in the BIOS or whatever to make it power the RAM properly?

Sorry for being such a noob :p

Thanks,

RS
 
Solution
Tradesman1
The Ares is good DRAM, it's a low profile set to complement GSkill's other offerings where the Trident X is their highest rated followed by The Snipers and RipJaws X and Z lines...all of which have higher/taller heatsinks, and is offered in a variety of models. The higher voltage is not a problem, Intel recommends 1.5 for the base level 1600 sticks for Haswell, but also has lists of DRAM certified for use with Haswell the majority of which is 1.65 sticks. Have more on this, in my article, Item 13, here:

http://www.tomshardware.com/reviews/ddr-dram-myths,4155.html#p7
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Tradesman1

Tradesman1

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Jun 5, 2013
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The Ares is good DRAM, it's a low profile set to complement GSkill's other offerings where the Trident X is their highest rated followed by The Snipers and RipJaws X and Z lines...all of which have higher/taller heatsinks, and is offered in a variety of models. The higher voltage is not a problem, Intel recommends 1.5 for the base level 1600 sticks for Haswell, but also has lists of DRAM certified for use with Haswell the majority of which is 1.65 sticks. Have more on this, in my article, Item 13, here:

http://www.tomshardware.com/reviews/ddr-dram-myths,4155.html#p7
 
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rottensnake

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Mar 9, 2015
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Thank you for the info! So the note about requiring more voltage is not a big deal and won't cause the RAM to not run properly? It will automatically pull a higher voltage from the memory controller to compensate?

Also I've read some about CAS ratings/timings or whatever. From what I've seen it looks like the higher speed you go, 2133 - 2400 and so on, the worse the CAS is. The 2x8 gb G.Skill Ares I was looking at is 2400 CAS 11. Would there be better performance from 2133 CAS 10 or how much influence does the CAS rating have? I'm assuming for all practical purposes you wouldn't be able to tell, I'm just curious. Also is it even possible to get RAM at 2400 or higher speeds at CAS 9 or 10, or would it be extremely expensive? I don't seem to find any on PCPartPicker so I didn't know if it was impossible to do or if it's just hard to find.

Thanks again!

RS
 
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