ASRock Fatality Z170 Gaming K6 RAM Command Rate

Hello Everyone,

I have recently purchased Asrock Fatality Z170 Gaming K6. My previous board was Asrock Z170 Extreme 4. I have been using GSkill TridentZ 3200MHz CL16-18-18-38-2N 2x8GB for a while now. My BIOS version is the latest 7.20. In my Extreme 4, i was been able to run the dual channel kit of mine at either 3466Mhz @16-16-16-36-1N at 1.42v or 3200MHz @15-16-16-36-1N at 1.35v. But now, in my Gaming K6, i cannot even run the modules at the 1N Command Rate, even at the default setting. As changing the CR (Command Rate) does not require any volt tweak, what could be the possible reason behind not being able to set the CR to 1? Is Gaming K6 an inferior motherboard than Extreme 4?

CPU: Intel Core i5 6600k @4.5Ghz Core, 4.5GHz Uncore. Voltage 1.37v (LLC-1)
CPU Cooler: Cooler Master Hyper 212X
Motherboard: ASRock Fatality Z170 Gaming K6
RAM: GSkill Trident Z 3200MHz @16-18-18-38-2N
Storage: ZOTAC 480GB Premium Edition SSD
Graphics Card: GIGABYTE R9 390X G1

There are many many reasons that what works on one system will not on another.

Too, changing CR does affect the IMC loading and will usually respond to a slight voltage tweak.

Yet from a CR of 1 to 2 there isn't any noticeable difference unless you spend your computing time as a benchmark geek. Frequency, Frequency, Frequency.

What's the kit PN of your TridentZ?

vanguardBD wrote: http://www.gskill.com/en/product/f4-3200c16d-16gtzb

Nice kit. See my sig.

On your MB, what is XMP setting your BCLK to?

Did you tweak VCCSA and or VCCIO also?



But seriously, 3200Mhz on any Skylake is doing good. Add in TridentZ's already low timings and 2T starts to straddle the fence on whether the IMC can do 1T or prefers 2T.

I don't design MB's yet I imagine the two are different, if even in the smallest way.

Sometimes I can swap MBs and have the same results, sometimes I can't.

Tweak away I guess. I don't have an answer for you at this point. The sticks run at their 2T command @ 3200 as they should. It's tweak time is all I can say. I know, I know ........