Overclocking 4ghz ram Failure

NERPZ69 · Nov 5, 2015

I have a Asus Z170-Deluxe mobo and I got 16gb (4X4) of the G.Skills DDR4 4ghz ram.

When I load up the computer and go into the bios, it detects all of my ram but the frequency is set to 2133mhz by default. I have left all of my settings default.

When I use XMP, my computer does not restart and I have to manually reset the bios. When I manually change the settings in the bios - DRAM frequency to 4000mhz and the voltage to 1.35 (per gskills techs advice) the computer does not restart either, when it finally boots up, it says overclocking failed.

I tried to go at a safer frequency (because according to my mobo says it will go up to 3733mhz) so i did the 3733mhz at 1.35v. The comp would restart however my monitor, keyboard, mouse, etc.. would not turn on, then it would restart saying overclocking failed.

I have looked up all of these issues online and nobody seems to have the same equipment as me. Can someone please help me out here?

Specifications of the custom build =
Asus Z170-Deluze
Intel Skylake 6700K
G.Skills 4000mhz DDR4 ram (16gb)
Intel 750 NvME SSD
Titan X Hybrid
H110i GT Cooler
Corsair 850w Gold+ Power Supply
Windows 10

Tradesman1 · Nov 5, 2015

What OC do you have on the CPU? Will need a decent OC to carry 4000 sticks, might also need to add some MC (memory controller) and/or System Agent voltage - also are the sticks from a single package, with 4000 sticks could be very hard to hit it with 2 sets of 2 sticks, many do this to save some money - but there's no guarantees that the two sets will play nice

NERPZ69 · Nov 5, 2015

Tradesman1 :

NERPZ69 · Nov 5, 2015

I got 2 sticks then an additional 2 stick but they are the exact same. I haven't oc the cpu yet.

Tradesman1 · Nov 6, 2015

As said mixing offers no guarantees - even with the same exact model - DRAM in a package is tested to play nice, also it's harder to find 4 sticks that will all play nice (takes more testing, so prices are usually higher that they would be if one bought 2 two stick packages more in my article, item 2, here:

http://www.tomshardware.com/reviews/ddr-dram-myths,4155.html

NERPZ69 · Nov 6, 2015

wow i did not know that... i will be testing out the different sticks one at a time to see if they can reach the 4ghz barries and in the different slots to, just to make sure the ram is good and the slots on the mobo are good. other than that, i will do the system agent voltage to see if that might help

Tradesman1 · Nov 6, 2015

And as said may need an OC on the CPU to run 4000

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