Overclocking for the first time, running into problems :(

[guruabyss]

Hi everyone,

I just finished building the following box the other day:

- Intel i7-6900k (3.2GHz trying to OC to 4GHz but would like to go to 4.2GHz)
- Asus Rampage 10 Edition 10 (Lastest BIOS flash)
- Corsair DOMINATOR Platinum Series 64 GB DDR4 3200 C16
- Corsair Hydro Series H115i
- Corsair HXi Series, HX1000i
- Samsung 950 Pro (512GB - OS + Apps)
- Samsung 850 Pro X2 (1TB - Raid 1 - Work Files)
- Nvidia Titan X-Pascal

I ran the system at it's default settings and everything seemed fine, I decided to do some research on overclocking using recent videos on youtube to tweak my system. Now what's odd is when I changed the CPU core speed to 4GHz and saved my settings in the BIOS is still showed as 3.2GHz (right hand side of the attached BIOS image) and using CPU-Z (in attached image in the BLUE box) it shows little under 3.2GHz.

When I log into windows everything seems fine, no system lag. A few minuets later the system lags and I get the following from windows: http://new.tinygrab.com/5ff8c90b9c29d14507095e89f9f1b2222ce78cc240.png

BIOS + CPU-Z screenshot: http://new.tinygrab.com/5ff8c90b9c5f2fa4c2fab8bf49c10ed6e464151c8b.jpg

** UPDATE: I changed the core speed to 4.2GHz and took a screenshot of HWiNFO64 + CPU-z: http://new.tinygrab.com/5ff8c90b9ce503bc3e6b76ce4098f002aff557bc7a.png system still has windows lag issue when idel

What am I doing wrong?

Thank you for any help/ guidance to this overclock noob.

[meankeys]

Welcome to the ROG forums

It you did not turn speed steping off. the cpu will clock down when no load is present. look under advanced under CPU. as far as the lag you may be unstable OC. try bumping up your vcore voltage a bit.

[Chino]

Hello guruabyss,

Have you read Raja's Broadwell-E overclocking guide? If not, I would recommend you giving it a read. 🙂

As for your issues, don't mind what the frequency on the right of the BIOS screen says. As long as the Target CPU-Mode Frequency and Target CPU @ AVX Frequency options are at the frequency you programmed it to be, you're good. The lags at idle can be attributed to an unstable overclock. Actually in one of your screenshots, a few of the workers stopped which means your overclock isn't stable.

In the future if you want to take screenshots of your BIOS, connect a USB pendrive to your motherboard and press the F12 key inside the BIOS. It's a lot faster than having to take photos with your Smartphone/camera and edit it in a program.

Since you're overclocking, also make sure you've populated the 8 pin and 4 pin power connectors on your motherboard. 🙂

[M11C]

WoW, nice build.

Well, it seems like your bios is not saving the cpu multiplier setting...
edit: so it's just your core 0 that's running 3.2?

Looking over you bios setting, you can try setting current capability to 180% (max), but it'll probably draw more power, possibly making your system more unstable, indicating that you need to raise Vcore.
maybe enable extreme tweaking.

and you might need to read some guides, and manually set some of the thing currently set on auto.

Anyway, you might consider going with the 125MHz strap, if you're going to be pushing it that much.

what cooling are you using?

Good Luck.

[guruabyss]

Thank you meankeys, Chino and M11C for your replies and sorry for the delay (family and work) in my findings. So before I reseted everything in the BIOS back to it’s default settings I wanted to run MemTest86. So before running the test I checked the info on my memory and it seemed odd that #2 wasn’t matching (http://grab.by/SnWi) with the rest of the memory. I then ran the test and on TEST 02 it froze my PC at 16% (http://grab.by/SnWG) .

So after a CMOS reset I ran MemTest86 and checked my memory info again (http://grab.by/SnWI) as you can see it has odd symbols in #4 (what in the world could that be?) ran the test, same results froze at 16%.

Rebooted and wanted to check one last time on the memory info (http://grab.by/SnWK) before running this last test, same 16% froze.

When I googled the “16% freezing error with memetest86” others have come across this but never on test 2. So I have to assume if I remove all the memory but one and test each one and they do pass it will have to be the Mobo or CPU?

Thank you all for your help!

[guruabyss]

Well I've tried all four memory sticks in DIMM slot A1 and they all lock the system at 16%. I thought maybe DIMM slot A1 might be bad so I tried DIMM slot B1 and still the same issue, locks at 16%. What does this mean? Are all four of the memory sticks bad, is my Mobo bad (if so what other tests can I do to see if it's the mobo) or could it be a CPU thing? I'm lost 😕

[Nate152]

Hi guruabyss

64GB of 3200MHz ram will require some voltage adjustments.

On the extreme tweaker tab try these settings:

Dram frequency: 3200MHz
Dram voltage: 1.40v - 1.45v
CPU VCCIO voltage 1,25v - 1.30v
CPU System Agent voltage 1.25v - 1.30v

Try the lower values first with one stick.

This should hopefully get your memory read correctly and fix the lag issues, did you purchase a single 64GB kit or two separate 32GB kits?

[guruabyss]

@Nate152 - I down clocked 1 memory DIMM to the 2400 and it still locks at 16%

[Nate152]

Ok, thank you guruabyss

Corsair memory seems to be the most problematic with ROG boards and raising those voltages might help.

You can also try resetting the bios to defaults. (F5)

[guruabyss]

when I did my first rounds of MemTest86 I reset (F5) "Load optimized defaults". ROG systems don't play well with Corsair... hmm... I didn't know that. With the system back to it's default I shouldn't have to mess with the voltages would I?