Alaric
New Member
- Joined
- Dec 4, 2011
- Location
- Satan's Colon, US
I think the starting point for DDR4 is 2133 MHz, and above that it's "overclocked". That was my understanding, anyway.
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I've always understood that to mean overclocked from the board's point of reference, not from the RAM's perspective. I could be wrong but it seems to me that different motherboards will insert that "(O.C.)" note at different frequencies.
Besides, it doesn't stack up to what you said earlier in post #17 where you state that "Ram sold at higher than 2133 is overclocked." In the gigabyte motherboard example you give there are two steps after 2133 that don't have "(O.C.)."
For instance: https://www.newegg.com/Product/Product.aspx?Item=N82E16813132927
It's a Z270 board but even declares DDR4 2133 to be an "O.C." frequency.
Here's another: https://www.newegg.com/Product/Product.aspx?Item=N82E16813157746 that doesn't use append the "O.C." note until you get to 2800.
When I hear the term "overclock" I think of pushing something faster than the speed it was sold to run at.
So this would be with respect to the CPU memory controller rating. But even that seems to be inconsistently applied as here's a screenie for a motherboard that indicates even 2133 mhz, what you say is to be is supposed to be the baseline non "O.C." standard for Sky Lake, is declared to be an O.C. frequency.The motherboard manufactures say when you call them with the ram not running at the rated speed it is because your overclocking the memory. Could be the memory not running at the tested speed, or IMC not able to overclock well or motherboard timings don't work on different brands or sets of memory. So that is 3 ways to loose memory overclocking reliability over stock.
Sky lake is up to 2133 stock
kaby lake is up to 2400 stock
Ryzen is up to 2667 stock
Intel Memory Specifications https://ark.intel.com/products/97129/Intel-Core-i7-7700K-Processor-8M-Cache-up-to-4_50-GHz
So this would be with respect to the CPU memory controller rating. But even that seems to be inconsistently applied as here's a screenie for a motherboard that indicates even 2133 mhz, what you say is to be is supposed to be the baseline non "O.C." standard for Sky Lake, is declared to be an O.C. frequency.
Don't go by what I say phone Intel: 1-916-377-7000 and ASUS to see that is a misprint 1-510-739-3777.
ASUS ROG Crosshair VI Hero
Even when I could get RAM to work, many times I could not get it to complete the SiSoft RAM bandwidth test. This is the only AM4 motherboard I have had this issue with. If I could get a set of RAM to complete this test 5 out of 20 times I would be lucky. Early on, I had sticks of RAM that would do 3200MHz no problem. Then with a UEFI or AGESA change and those sticks would no longer work at 3200. Some sticks would work at nothing but 2133 sometimes. With some DIMMs it will not POST at all. The whole thing has been a mess.
https://www.hardocp.com/article/2017/06/04/asus_rog_crosshair_vi_hero_ryzen_motherboard_review/7TE]
I can't say my first couple days with RYZEN have been great, part of my issues was in trying to get windows 7 to work for 24/7 use. I think it can be done but I didn't / don't have the time or patience for that right now.
So this would be with respect to the CPU memory controller rating. But even that seems to be inconsistently applied as here's a screenie for a motherboard that indicates even 2133 mhz, what you say is to be is supposed to be the baseline non "O.C." standard for Sky Lake, is declared to be an O.C. frequency.
AMD and intel don't have a problem with all memory brands running DDR4 2133 stock, there built for it. AMD and Intel have trouble overclocking memory.