ROG Crosshair VII overclocking thread

Keith Myers · 02-08-2019, 06:47 PM

Quote: Originally Posted by majestynl

Just got this delivered...will start installing it tomorrow..

All the data crunchers are instantly envious of you. 1/4 FP64 performance on a consumer card. Matches up against the RTX 2080 at the same price.

CJMitsuki · 02-08-2019, 07:09 PM

Quote: Originally Posted by Khelben

Hello all! This will be a lengthy post filled with newbie questions so i want to apologise in advance for polluting your thread and thank anyone that bothers going through it and maybe provide me with some answers.

I've just put together a new 2700x/C7H build.Some additional information about the case/cooling as i think they are vital to give you a full picture and answer my main worry/question. Case is a Fractal Meshify C with 2 NF-A14PWM for intake and one NF-S12A for exhaust.Cpu cooler the NH-D15 with one of the NF-A15 fans it comes with and an NF-F12PWM in the front (instead of the second A15,as ram clearance cooler height and case size didn't allow for it).The tim used is TG Kryonaut.I also want to stress here that the system is an a *virgin* state : I have just done a basic install of W10 ,haven't downloaded any drivers/updates(save for the gpu) and the only programs i have installed are HWInfo64,CPU-Z,Asus Realbench,HWMonitor and Chrome. The mobo is running on its stock bios( 0804) and i haven't touched a single thing in the UEFI.

Now onto my first question/worry. I am afraid i may have applied the TIM badly/insufficiently.Truth is the first time i went through with it,i botched it.I tried applying the Kryonaut the way der8auer

First, calm down. Second, everything looks fine. Temps are fine, viltage spiking in that fashion is normal. Mine spikes to 1.6v all the time and Ive ran it at 1.65v with no degradation as voltage isnt the worry as much as the temps are. Not saying to run yours at anything like I do but just saying that youre fine. The voltage spikes you see are normal for PBO they are only short bursts as the clocks are constantly changing. If I were you Id just change to Performance Enhancer 3 and set a -.05v Core voltage offset and let PBO do its thing. You wont want to go any more than that with your cooler. You are likely to get 4.1ghz all core with 4.35ghz on 1-4 cores. If you want more then just bump up te BCLK a few notches and watch the OC go up. As you increase BcLK youll have to back the negative offset on the core down to hive it a bit more voltage headroom to work with. You wont really control the voltage with PBO, it will do that itself but the offsets give it limits sort of. The 2700x is a pretty tough cpu, Ive had mine doing some crazy numbers and it never hurt it a bit. So just relax and play with it but PBO makes it easy to do a general OC.

Sorry for typos, im on my iphobe and cant be bothered to fix them.

majestynl · 02-09-2019, 04:03 AM

Quote: Originally Posted by Keith Myers

Quote: Originally Posted by majestynl

Just got this delivered...will start installing it tomorrow..

All the data crunchers are instantly envious of you. 1/4 FP64 performance on a consumer card. Matches up against the RTX 2080 at the same price.

Lol, let's see what i can do with it. Curious about pptables etc. The only thing I'm not happy with is the waiting for a custom block 😞

neikosr0x · 02-09-2019, 06:34 AM

Quote: Originally Posted by Khelben

Hello all! This will be a lengthy post filled with newbie questions so i want to apologise in advance for polluting your thread and thank anyone that bothers going through it and maybe provide me with some answers.

I've just put together a new 2700x/C7H build.Some additional information about the case/cooling as i think they are vital to give you a full picture and answer my main worry/question. Case is a Fractal Meshify C with 2 NF-A14PWM for intake and one NF-S12A for exhaust.Cpu cooler the NH-D15 with one of the NF-A15 fans it comes with and an NF-F12PWM in the front (instead of the second A15,as ram clearance cooler height and case size didn't allow for it).The tim used is TG Kryonaut.I also want to stress here that the system is an a *virgin* state : I have just done a basic install of W10 ,haven't downloaded any drivers/updates(save for the gpu) and the only programs i have installed are HWInfo64,CPU-Z,Asus Realbench,HWMonitor and Chrome. The mobo is running on its stock bios( 0804) and i haven't touched a single thing in the UEFI.

Temps are fine, i get 63c/65c on all cores load for 20min test thats using PE4, voltages go around 1.4v to 1.42v and in single core loads also using PE4 i get temps around 55c with and average voltage of 1.495 it spikes to 1.55. During gaming i get 1.4v(sometimes even lower) averages for long gaming sessions with temps going as high as 65c. Room temps would be around 10c to 15c.

Keith Myers · 02-09-2019, 11:09 AM

Quote: Originally Posted by majestynl

Lol, let's see what i can do with it. Curious about pptables etc. The only thing I'm not happy with is the waiting for a custom block 😞

You might want to look at two YT videos on the card regarding overclocking the VII. der8auer and GamersNexus both attempted to overclock and it was not pretty. Any attempt to use the standard tools to overclock ended with the card running at reduced clocks and whacky readings.

Seems the drivers and the tools are not prepared for this new card quite yet. Best results were to simply use the provided self-overclock function in the driver and not mess with anything else. If you can keep the card cool, and it would appear your custom block for the card will do that, you could be seeing clocks around 2 Ghz.

majestynl · 02-09-2019, 11:17 AM

Quote: Originally Posted by Keith Myers

You might want to look at two YT videos on the card regarding overclocking the VII. der8auer and GamersNexus both attempted to overclock and it was not pretty. Any attempt to use the standard tools to overclock ended with the card running at reduced clocks and whacky readings.

Seems the drivers and the tools are not prepared for this new card quite yet. Best results were to simply use the provided self-overclock function in the driver and not mess with anything else. If you can keep the card cool, and it would appear your custom block for the card will do that, you could be seeing clocks around 2 Ghz.

yeap watched almost all videos. Im already waiting since CES for this

didn't try manual OC yet because all the freaking reviews. But Memory OC from 1000mhz to 1200mhz is definitely working here! Auto OC gives a small boost...not really fun

will play with few things over here..

**Ceadderman** · 02-09-2019, 11:56 AM

Quote: Originally Posted by majestynl

yeap watched almost all videos. Im already waiting since CES for this

didn't try manual OC yet because all the freaking reviews. But Memory OC from 1000mhz to 1200mhz is definitely working here! Auto OC gives a small boost...not really fun

will play with few things over here..

I must say that I am quite jelly atm. Though not because I can't get one but because I would have to pull 4 things out of my Newegg cart to fit it with the new CVIIHero and RAM(16gb), if I were to do that, no SSD(1tb) no monitor(Samsung 43") no Camera... $1500 goes a long way, but not that far when you have a few other things of need. Ah well there is always next Gen.

~Ceadder

majestynl · 02-09-2019, 04:54 PM

Quote: Originally Posted by Ceadderman

I must say that I am quite jelly atm. Though not because I can't get one but because I would have to pull 4 things out of my Newegg cart to fit it with the new CVIIHero and RAM(16gb), if I were to do that, no SSD(1tb) no monitor(Samsung 43") no Camera... $1500 goes a long way, but not that far when you have a few other things of need. Ah well there is always next Gen.

~Ceadder

hehe yeap thats a lot of things you need pull out from your cart

Currently doing manual OC, and i must say for Timespy it isn't a issue yet. Will try some games later. For now i have a nice bump in perf.

- 1950mhz @ 1072mv and HBM @ 1185mhz
- Timespy link (2nd): https://www.3dmark.com/spy/6162233
- Attached wattmann screenie after timespy run

and for those who want: a Radeon VII wallpaper i created!!

crakej · 02-09-2019, 06:52 PM

I know it's hard to say, but how much extra cooling will I get by upgrading to a 360 cooler from my lowly ML240?

I've done a LOT of experimenting today with increasing tCKE to 6. This allowed my to lower cpu voltage from offset +0.01250 to -0.02500. It also brought stability at 3600 tantalizingly close! one run I can run something cpu demanding like IBT AVX on Very Hard and pass, but fail RamTest or TM5. Then I got mem tests to pass, but IBT failed half way through. Whatever I do I don't seem to b able to quite balance things to get stable. |It's a shame as I have all that extra headroom in VCore and prob could have got cpu to 4.2GHz which would make my latency and data transfer rates excellent!

Anyone one know what might be stopping me from getting IBT to pass when mem tests pass?

I'm driving to the Peak District tomorrow for a couple of days off, so as much as I hate to stop, I need to sleep now!

Have written to support to let them know about the loop some of us get when mem training fails. Also asked if there are any new bios yet. Hopefully will come back with fresh head and have a eureka moment

**Ceadderman** · 02-10-2019, 01:24 AM

Quote: Originally Posted by majestynl

hehe yeap thats a lot of things you need pull out from your cart

Currently doing manual OC, and i must say for Timespy it isn't a issue yet. Will try some games later. For now i have a nice bump in perf.

- 1950mhz @ 1072mv and HBM @ 1185mhz
- Timespy link (2nd): https://www.3dmark.com/spy/6162233
- Attached wattmann screenie after timespy run

and for those who want: a Radeon VII wallpaper i created!!

I went back to Newegg and checked, all sold out.

I might actually have adjusted my cart to fit it. Or held off my PPCs cart with the cooling gear till later down the road. My coupon doesn't expire that soon anyway. Ahhhh well maybe when I make everything final, they may be back in stock. Not gonna hold my breath however as word has it there are only 5k Radeon VII cards available.

Nice score on Timespy and great RAM clocks. I adjusted my RAM purchase for 3200 14 sticks. Really wanted 3600 sticks but those were 19 latency and all I could find. I will finesse my cart when I finally get my funds to drop on the counter.

~Ceadder

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