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I don't know if this is the right place for this & not that it likely matters as far as mining performance etc. But I got a G3950(https://ark.intel.com/products/97451/Intel-Celeron-Processor-G3950-2M-Cache-3_00-GHz (https://ark.intel.com/products/97451/Intel-Celeron-Processor-G3950-2M-Cache-3_00-GHz)) for my 1st rig built with the ASRock H110 Pro BTC+ motherboard & HyperX Fury DDR4 2400 memory. I chose this combination because the ASRock site said "7th Gen Intel® CPU supports DDR4 up to 2400" & every site(except Intel I later learned) says the G3950 supports DDR4 2400:

https://www.bhphotovideo.com/c/product/1304309-REG/intel_bx80677g3950_celeron_g3950_3_0_ghz.html (https://www.bhphotovideo.com/c/product/1304309-REG/intel_bx80677g3950_celeron_g3950_3_0_ghz.html) says "This processor also supports up to 64GB of DDR4-2400/2133"
http://www.cpu-world.com/CPUs/Celeron_Dual-Core/Intel-Celeron%20G3950.html (http://www.cpu-world.com/CPUs/Celeron_Dual-Core/Intel-Celeron%20G3950.html) says "Supported memory: DDR3L-1333, DDR3L-1600, DDR4-2133, DDR4-2400"
https://www.scan.co.uk/products/intel-celeron-g3950-s-1151-kaby-lake-dual-core-2-thread-30ghz-2mb-cache-1050mhz-gpu-51w-cpu-box (https://www.scan.co.uk/products/intel-celeron-g3950-s-1151-kaby-lake-dual-core-2-thread-30ghz-2mb-cache-1050mhz-gpu-51w-cpu-box) says "Max. Memory Speed DDR4 - 2400 / DDR3L - 1600"
http://www.outletpc.com/qq5465-intel-g3950-kaby-lake-dualcore-30-ghz-lga-1151-51.html (http://www.outletpc.com/qq5465-intel-g3950-kaby-lake-dualcore-30-ghz-lga-1151-51.html) and so on, you get the point.

Still Intel only lists 2133 which is what it's running at now. I'm hoping there's maybe just a minor bios configuration or something that can get it to 2400, that it can actually do the speed listed on all those sites & 1 person didn't type up the specifications wrong before everyone copied them :P

Any help would be greatly appreciated, thanks!

As long as it's working and mining, why worry about it? As long as there is enough free resources on the system, memory speed is irrelevant for mining.

Yeah that's kind of what I figured too but also if it takes 2 minutes I may as well get the speed I paid for. Otherwise I could have just got a Penium & 2133 to save some $.

2400 MHz ram is intended to be compatible with Kaby Lake CPU's, but you bought a budget CPU for a mining rig, not a performance gaming machine. The speed is irrelevant for what it's being used for. Older gen RAM and CPU's are also usually more expensive since it's produced less than the most current specifications.

2133 Mhz is what cpu support on default. When I started my pc first time, my memery G Skill F4-3000C15-8GVRB were running at 2133mhz as well(i5 6500). I enable XMP profile and now they are running at 3000nhz.
bla, bla,.. if your RAM have XMP profile, activate it in your Bios, else "overclock" memory to 2400mhz.

EDIT: download CPU-Z and check under SPD tab, if your sticks have XMP.

Yeah I get that, that's why I bought a 7th gen, not a 6th.

I don't even have an XMP profile option :/ It basically lets me set the clock(auto/100/133) & the frequency(up to 2133). I doubt a new bios that had it would be available, this MB launched like a month ago. At this point I'm thinking all the sites saying this CPU supported 2400 were wrong but it's not worth replacing/sending anything back. I paid $3 more for the stick of 2400 than the 2133 & $20 more for the CPU I thought supported 2400.

Going forward on my next rig(w/same MB) would you suggest using the G4600 or just save $30 & stick with 2133. Again I know since it currently has no effect on mining it's probably silly to waste any more time caring about it, but if that's the case why do some suggest not going with the bottom of the barrel Celerons?

Personally I never use the latest CPU's and memory for mining rigs. There is no performance gain and generally it only causes compatibility problems. Especially if you plan on using Linux, which is notorious for not supporting the latest hardware. For my latest build with the ASRock H110 Pro BTC+ I used a Skylake processor with 2133 MHz ram, even though it cost more than a comparable Kaby Lake.

It should be under this settings in bios.

DRAM Timing Configuration
Load XMP Setting
Load XMP settings to overclock the memory and perform beyond standard specifications.

DRAM Reference Clock
Select Auto for optimized settings.

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s) inserted
and assign the appropriate frequency automatically

Like I said, there's nothing in my BIOS about XMP.

As previously mentioned, the performance increase between 2133mhz and 2400mhz will not affect mining.

Beyond that, you almost definitely won't notice any performance improvements in everyday use or if you tried playing games on this system. (The CPU is relatively week for that purpose, anyways.)

This topic is only tangentially related to altcoin mining, so I'd recommend going elsewhere for advice on this question. Perhaps another BitcoinTalk subforum or Tom's HW will be better. (If you choose the latter, just make up a story for the gamers about why you own a mining motherboard. :P)

Yeah I agree, not worth spending anymore time on this. Was just curious if it was a quick fix. No biggy :) Thanks for your feedback!

Since no one gave a concrete answer, the Celeron G3950 will not do 2400MHz under any circumstances.
You'd need a Kaby Lake Pentium and up in order for your RAM to run at 2400MHz in a non Z-series motherboard.
Celeron CPUs do not support that frequency.

You literally linked the answer in your first post.

Right from intels site:

 Memory Types DDR4 2133, DDR3L 1333/1600 @ 1.35V

Theres really nothing to be done at this point.

Also as other have pointed out, with DDR4 there really isnt much of an improvement when you get the higher speed memory. I benchmarked my system with the RAM at 2133, and again with the XMP profile pushing it to 3200. There was less than 5% difference, its so negligible you would never be able to tell so dont fret over not hitting that 2400. The performance difference will be under 1-2%

Yes except every other site said it did support 2400 & I was curious if that meant something more than a copied typo.


Right, hence my last response stating it wasn't worth spending anymore time on & thanked everyone :P

Thank you for your feedback.