ASUS Maximus VIII Formula & Corsair Dominator Platinum 32GB (4x8GB 3333MHz)

[ThePro_PR1]

I just finished building my new rig last week (getting ready for BF1). My old system was more than up to the task (played the Alpha extremely well 80-90fps), but my wife PC was getting old/slow so I gave her my "old" rig and built myself a new one.

Phanteks Enthoo EVOLV ATX (Tempered Glass Edition)
ASUS Maximus VIII Formula
Intel i7 6700K (stock, haven't OC yet)
Corsair H115i CPU Cooler
Corsair Dominator Platinum 32GB 4x8GB (XMP 3333MHz)
EVGA 1080 FTW
ASUS ROG Swift PG278Q

I ordered a set of Corsair Dominator Platinum 16GB 4x4GB 3200MHz (which are on the QVL) and I will probably stick with that. The first set boots ok, but its not in the QVL and I get random/rare crashes to desktop while playing games (BF4 and JC3 for example) and I'm sure its because of this (if I run the RAM at stock speeds the issue goes away). Also I think I went overboard with 32GB, so I ordered 16GB to save some cash ... what do you think? I don't see any games requiring more than 16GB anytime soon.

Do you think theres any way of getting the Corsair Dominator 32GB 4x8GB (XMP 3333MHz) to be stable on this system? Would it require an update on ASUS part (BIOS; I'm running the latest version 1902). Would increasing voltage or setting something manually help at all in this case?

[Chino]

DDR4 3333 will probably not run stable on most systems without some manual tweaking. The two main voltages that help stabilize RAM are the VCCIO and System Agent Voltage.

[Costas]

ThePro_PR wrote:
Do you think theres any way of getting the Corsair Dominator 32GB 4x8GB (XMP 3333MHz) to be stable on this system? Would it require an update on ASUS part (BIOS; I'm running the latest version 1902). Would increasing voltage or setting something manually help at all in this case?

Hi there...

I'm running 4 sticks of Dominator 3200 (2x 16GB NON matching sets - Not recommended BTW) in my Formula VIII.

I had trouble running them at XMP settings so I needed to manually tweak a few things to ensure stability.

First thing was to set Maximus Tweak to Mode 1 which relaxes some timing parameters. I also had to up my Eventual DRAM voltage to 1.38v.

VCCIO & VCCSA I left on Auto as it resulted in 100% mem stability with reasonable voltages for my Mem & CPU [6700K @ 4.8GHz] combo.

The other thing I found was that dropping RAM speed from 3200 to 3100MHz allowed me to tighten my primary timings from C16 to C14 while still maintaining 100% memory stabilty (this resulted in a minor performance increase in mem bandwidth over running it @ 3200MHz).

Note that the above applies to my combo of Mobo/Mem/CPU so you will need to do some playing/testing etc with your setup.

I suggest that you also test your settings thoroughly using Google StressAppTest (GSAT for short) as GSAT is a very heavy test for memory. https://rog.asus.com/forum/showthread.php?73665-Our-preferred-memory-stress-test