Corsair Dominator Platinum 3200 Stability Issue

[Ollie__]

Hello All

I recently build a new x99 based system and am having some issues getting the memory to run and its specified speed. I read the overclocking guide on the forum and also spent countless hours on google and tweaking system settings.

System specs
i7 5950x
Corsair dominator platinum 3200 4x4
Asus rampage v extreme u3.1
gtx 980
custom water loop CPU/GPU

So i can not get the memory to run in xmp or manual mode at 3200MHz it runs stable at default settings 2133MHz. However when i enable XMP and set the memory voltages to 1.35 as corsair states the system will boot into windows and crash within the first 30 seconds of any stability test. I have tried manually configuring the memory also but the same thing happens.

My 5960x is running happy at 4.5GHz at 1.26 volts and I have ruled out any other hardware issues. I did a 18 hour stability test like this and the system was fine but as soon as i turn xmp on or manually configure the memory i get issues. Also tried each module individual to rule out a bad stick but still the same issue.

I have tried tuning system input voltage etc but still nothing does anyone have any advice on a possible resolution or it could just be faulty memory and need returning.

Any advice would be appreciate
Thanks
Ollie

 

[Greybeard]

Have you tried running the system by setting everything to default first in BIOS (no CPU OC) then enable XMP? If I had to guess, your CPU overclock is probably a little too aggressive for the memory controller to run the RAM at 3200Mhz. Keep in mind that your MCH is now on the CPU itself, the higher the frequency is, the more stress you put into it. And because of that, your DRAM frequency needs to compensate.

So try to load optimized default first in BIOS then enable XMP and see if the system will be stable.

 

[Ollie__]

Have you tried running the system by setting everything to default first in BIOS (no CPU OC) then enable XMP? If I had to guess, your CPU overclock is probably a little too aggressive for the memory controller to run the RAM at 3200Mhz. Keep in mind that your MCH is now on the CPU itself, the higher the frequency is, the more stress you put into it. And because of that, your DRAM frequency needs to compensate.

So try to load optimized default first in BIOS then enable XMP and see if the system will be stable.

Cheers for your response i thought i tried this before but i just tested again to be sure and with optimized defaults loaded on the bios and just xmp mode enabled i crash before i get into windows login screen. Also tried setting memory voltages to 1.35 just in case because auto mode sometimes messes with things this let me load into windows but crashed instantly after that.

Also tried this with just one stick of memory and alternated them to rule out a bad stick but no joy.