Appropriate ram for i7-4770K?

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JMacDPD

JMacDPD

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Mar 10, 2014
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Hello all!

I've been attempting to finalize my thoughts on a build and have decided to build around the new Asus ROG Swift PG278Q monitor that I hope debuts in April, but have stumbled across a hiccup - first off, I've trusted Corsair memory, but realize that I have been somewhat biased about them and am now open to other brands (go me).

Here is the preliminary list of my build:
http://pcpartpicker.com/user/JMacDPD/saved/40I6

My question is the chosen Dominator Platinum ram - I see now that it throws a message up at the bottom of my list that states: Corsair Dominator Platinum 16GB (2 x 8GB) DDR3-2133 Memory operating voltage of 1.65V exceeds the Intel Haswell CPU recommended maximum of 1.5V+5% (1.575V).

I haven't heard of this before - but then again I've never dug into ram specs as far as I probably should have.

Does this throw these out of the build and/or what would you recommend in their place?

(The long goal is to have two of the aforementioned monitors - 1 in the beginning)
(I also haven't chosen a power supply - any ideas?)

Thank you,

Jon M.
 
Solution
atomicWAR
i can't say for certain as i know with sandy bridge they had the 1.5v ceiling but i know a lot of overclockers pushed it to 1.65v though some had issues with the memory contoller degrading but that was mostly with g.skill ares sticks. anyways my motto is always better safe then sorry. i like to keep my voltages with in spec or as close as possible when overclocking. and like sandy bridge they had the 1.575 w/ +5% rating. so my guess is if you have good ram (not g/skill ares) and are brave you might get away it if you configure your motherboard correctly.

I had some help trying to hit ddr 2400 and couldn't do it in the voltage range i wanted much like your facing now though other folks had it working (as did i briefly but again...
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ahnilated

ahnilated

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Normally the i7 series uses 1.5 volt ram and the overclocked ram can be over that, IE 1.65 volts. It is best to stay within the 1.5 volt area unless you know how to setup the motherboard to work right with the 1.65 volt ram and your processor.
 
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Ahmadjon

Ahmadjon

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Oct 16, 2013
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PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($319.99 @ Newegg)
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler ($64.99 @ NCIX US)
Motherboard: Asus Z87-PRO ATX LGA1150 Motherboard ($179.98 @ SuperBiiz)
Memory: Corsair Dominator Platinum 16GB (2 x 8GB) DDR3-1866 Memory ($214.99 @ Best Buy)
Storage: Samsung 840 Pro Series 256GB 2.5" Solid State Disk ($208.11 @ Amazon)
Storage: Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive ($109.99 @ Newegg)
Video Card: Asus GeForce GTX 780 Ti 3GB Video Card (2-Way SLI) ($699.99 @ SuperBiiz)
Video Card: Asus GeForce GTX 780 Ti 3GB Video Card (2-Way SLI) ($699.99 @ SuperBiiz)
Case: Corsair 900D ATX Full Tower Case ($279.99 @ Microcenter)
Power Supply: XFX ProSeries 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($134.99 @ NCIX US)
Keyboard: Corsair Vengeance K95 Wired Gaming Keyboard ($149.41 @ Amazon)
Mouse: Logitech G500 Wired Laser Mouse ($67.78 @ SuperBiiz)
Total: $3118.20
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-10 11:37 EDT-0400)
 
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atomicWAR

atomicWAR

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i can't say for certain as i know with sandy bridge they had the 1.5v ceiling but i know a lot of overclockers pushed it to 1.65v though some had issues with the memory contoller degrading but that was mostly with g.skill ares sticks. anyways my motto is always better safe then sorry. i like to keep my voltages with in spec or as close as possible when overclocking. and like sandy bridge they had the 1.575 w/ +5% rating. so my guess is if you have good ram (not g/skill ares) and are brave you might get away it if you configure your motherboard correctly.

I had some help trying to hit ddr 2400 and couldn't do it in the voltage range i wanted much like your facing now though other folks had it working (as did i briefly but again uncomfortable with Voltages needed to do so at 1.64V) so i choose 2133 speeds instead to get the 1.5v volts i wanted.
 
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JMacDPD

JMacDPD

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Mar 10, 2014
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My apologies for the latency in my response - I was pulled into a meeting.

The Mushkin specified by Derza are in spec - and I've heard nothing but praise from the manufacturer.
If I cannot find any within the voltage range - then I'd rather not chance and will more than likely bump down to the 1866 specified by Ahmadjon.

- I'm with you atomicWAR, I err on the side of caution whens it comes to pushing voltages past specifications.


Also, the 850W XFX specified by Ahmadjon - would that be enough even with 780 TI SLI?
I ask because I stumbled across this:
http://www.realhardtechx.com/index_archivos/Page362.htm
 
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D

Derza10

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Yup those are the same as the ones I have but with a different heat sink. About the PSU, you could SLI gtx 780 ti's with a 750w... not sure why that site recommends such a high wattage PSU... 850w will be plenty.
 
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JMacDPD

JMacDPD

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Mar 10, 2014
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I was surprised by it as well - glad to have that cleared up. Many thanks.

I'm now down to my board - I truly like the Z87-PRO, but I've been toying with the idea of the ROG Maximus line.
Any thoughts there? Definitely wanting to remain with Asus.
 
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