Will I be able to get 2400MHz RAM with this setup?

Jiniix

Jiniix

Well-Known Member
  • Intel i5-4670 (non-K)
  • ASUS Z87 Gryphon
  • Kingston HyperX Beast 2400MHz 2x4GB
I've read that the memory controller on Haswell is built in to the CPU, but I also read that the B85 chipset (which I had originally planned for (No OC on this PC)) couldn't go above 1600/1866MHz RAM.

Can't find any specific info about 2400MHz RAM and this CPU. Anyone know if it's possible, or if they have a worse controller than the K models?
 
Going by this, the board only supports up to 1866MHz RAM anyway, so I'd probably say you can't use 2400MHz RAM. The specs page doesn't mention anything about overclocking, either.

Something else to note too that is that Intel say that the memory type for the i5 4670 is DDR3 1333MHz or 1600MHz (see here). Not sure if that's referring to onboard memory controllers or what, but no mention of 2400MHz. I usually disregard what it says on there because that CPU will work with 1866MHz without a problem.
 
Intel and AMD usually go by what is approved by JEDEC in there listing. Not what speed the memory controller can really run at.
 
Exactly. The CPUs (even the K versions) also say they can only do 1333/1600 on Intels site, but we all know they can do better.
I'm also aware that technically I'll be overclocking the RAM, so I might not be able to get 2400MHz, only 2133MHz perhaps. If I'm lucky I can get 2600MHz.
I just wanted to know if the memory controller was noticeably different on the non-K versions, like the built in GPUs etc.
 
If you want to run that, id use x79 chipset which does support 2400 at OC. It is possible however on your chip. Just disable fast boot to ensure memory training parameters are done thoroughly.
 
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X79 is out of the question :) It's for a friend that upgrades but keep his GPU. Also includes an SSD, case, PSU etc, but those weren't relevant.
I will keep Fast Boot in mind. Having it enabled skips a bunch of hardware checks at boot, if I'm correct?
 
If you have a 2400 rated kit, get a motherboard that has the kit listed on the QVL if you want a decent chance at it working properly. It's no guarantee, but likely more kits that are not listed will work.
 
The 32GB kit edition of my selected RAM has been validated. 4x8GB. My friends are 2x4GB.
I would consider that a higher chance of it working than it not being there at all.
Thanks for the replies. I'll take the chance, it's only 100kr/$20 more than 1600MHz - which is nothing in Denmark :)
 
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