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XMP Profile on Gigabyte Z170X Gaming 7 - Page 2

post #11 of 37
Thread Starter 
Yeah i hope someone else has seen this before. Thanks heaps for trying to help tho i really appreciate it!
post #12 of 37
It seems like it's too much strain on the IMC with the RAM at 3200Mhz and the CPU at 4.6Ghz. You have a 400mhz overclock on the CPU, and according the ARK spec sheet of the 6700k, the IMC supports a max DDR4 freq of 2133Mhz. So that's over a 1000mhz overclock

Maybe drop your CPU back to stock and set the XMP, then slowly increase your multiplier until you start to see issues.

Overclocking the IMC may help, or even a voltage bump (VTT is it?) of 0.002 at a time till things start looking more promising.
Edited by spinFX - 7/12/16 at 1:25am
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post #13 of 37
Thread Starter 
Thanks spinFX, i initially tried to RAM first before i did the CPU OC but ill give it another shot, will also try the voltages without the CPU being oc'd as i haven't tried that yet.
post #14 of 37
Quote:
Originally Posted by yomato26 View Post

Thanks spinFX, i initially tried to RAM first before i did the CPU OC but ill give it another shot, will also try the voltages without the CPU being oc'd as i haven't tried that yet.

Looks like it's your system agent. 1.05V looks much too low for Sklyake with 4 sticks. System Agent is the voltage for what controls the IMC and Skylake's IMCs are averaging around 3500-3600MHz as maximums anyways.

http://www.overclock.net/t/1569364/official-skylake-haswell-e-broadwell-e-24-7-ddr4-memory-stability-thread/0_30

Sorry, forgot to give explanations:

http://www.overclock.net/t/1570313/skylake-overclocking-guide-with-statistics/0_30
http://rog.asus.com/forum/showthread.php?53306-DDR4-3000-Setup-Guide-For-Rampage-V-Extreme
Edited by ikjadoon - 7/12/16 at 8:56am
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post #15 of 37
Yomato,

Did you figure anything out about this yet? I'm having the same exact problem with an eerily similiar setup. Would love to get some feedback from someone who has been through this before I start tinkering with too much.

CPU – i7 6700k
RAM – GSKILL Trident Z 3200 x 32GB (4-3200C16D-32GVKA) 2x16 instead of 4x8
MB – Gigabyte Z170X Gaming 7
Video – EVGA GTX 1080 FTW
PSU – Corsair AX860i
post #16 of 37
Thread Starter 
Hey mate, nah i haven't had the chance to tinker with it have been away and put it out of my mind. Im pretty new to ocing in general so im worried about messing with the voltages and such too much just for a slight performance gain.
post #17 of 37
Quote:
Originally Posted by brttclne22 View Post

Yomato,

Did you figure anything out about this yet? I'm having the same exact problem with an eerily similiar setup. Would love to get some feedback from someone who has been through this before I start tinkering with too much.

CPU – i7 6700k
RAM – GSKILL Trident Z 3200 x 32GB (4-3200C16D-32GVKA) 2x16 instead of 4x8
MB – Gigabyte Z170X Gaming 7
Video – EVGA GTX 1080 FTW
PSU – Corsair AX860i

Quote:
Originally Posted by yomato26 View Post

Hey mate, nah i haven't had the chance to tinker with it have been away and put it out of my mind. Im pretty new to ocing in general so im worried about messing with the voltages and such too much just for a slight performance gain.

Right. This is the issue with XMP: it's not meant to be used in a fully stock system, as XMP by definition is overclocked memory. frown.gif They should really put that on the packaging or explain it. I don't think many people realize, stock DDR4 is 2133MHz on Skylake. That is the only frequency that is guaranteed to work.

XMP, now this is insane, is sold as overclocked memory, but it's actually not guaranteed to run at that speed unless, #1 it's on your motherboard's QVL list (with the requisite BIOS update, if you need it) and #2 your CPU is at stock frequency.

I have no idea why this isn't more clear, but it's how we end up with situations like you mates are having. frown.gif I imagine they write this on some fine print somewhere, haha.

So, brttclne22, you are quite close. The 16GB kit of your RAM is on the QVL list for the Gaming 7, but not the 32GB. If you call up Gigabyte, they will first say that it's not on the QVL list, then they'll say, it is double-sided instead of single-sided, which puts a higher strain on the CPU, and finally (depending if you get a "cool" rep or not), they'll say that they don't warranty overvolting or overclocking, however your sticks will likely run if you increase your System Agent voltage slightly (assuming your CPU is at stock like you wrote).

@yomato26: I understand. If you want to make sure your sticks aren't defective, you can reset your CPU to stock and see if the XMP profile works then. But, an overclocked CPU & overclocked RAM are hard to do with stock voltages. frown.gif

The whole reason they only verify some sticks at certain capacities: partially, they don't have enough time to test every kit. But, in general, 4 sticks often require more voltage than 2 sticks and doubly-so if you're trying to overclock the 4 sticks. Just one of the sticks could be slightly weaker and it alone needs a voltage bump, but the whole system won't boot if it even has just one bad (i.e., voltage starved) stick.
Edited by ikjadoon - 7/22/16 at 2:34pm
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post #18 of 37
Thanks for the quick responses!

I'll keep playing with it, but like you Yomato, I'm EXTREMELY new to this and not very comfortable changing voltages. I'll probably just end up overclocking the memory (that seems to work) and leaving the CPU alone for now. Thanks again!
post #19 of 37
Have either of you taken out two sticks and set the XMP profile afterwards? XMP with my 6600k @ 4.6 works with no issues on my 2x8gb kit. You're likely going to have to play with voltages.
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post #20 of 37
I've been playing with this a bit and wanted to update the thread for anyone else that was looking for a similar answer. I ended up with these settings and they seem to be stable for now. I definitely didn't win the silicon lottery though rolleyes.gif

Frequency Menu
BCLK - 100
CPU Mulitplier - 45
Uncore Multiplier - 45 (I think that's what its called)
XMP - Profile 1
Memory Multiplier - 30 (32 will not work even though it is the stated frequency of the ram.. I think this is the big difference maker)

Voltage Menu
LLC - High (I may have turned this back to auto, I'm not sure)
CPU Volts - 1.365

Everything else was left at auto.

Note: I need to do more stress testing but I attached my heatsink before I had my case, then had to unattach it to put it in the case so I need to reapply TIM. It's supposed to be here tomorrow. I'm using a Corsair H115i and my package temperatures are hitting 80-82C which I wouldn't expect for that style of cooler.

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