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  #11  
Old 10-03-17, 10:04 PM
gtbtk gtbtk is offline
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Glad that you have started looking at BCLK and memory speeds.

I have noticed that the 1080p gaming anomalies seem to be due to a PCIe controller bottleneck when there is a high load on both CPU and GPU. It is very easy to see in firestrike results where graphics and physics scores are great but the combined score is terrible if you compare it to a similar Intel rig.

The Ryzen on chip PCIe controller, like the memory controller resides in the "data Fabric" that is clocked at 1/2 the frequency of the memory frequency so I am assuming that 3333Mhz memory helps.

Did you find that relative to the graphics and physics scores, the CH6 combined score was better than the other boards you have tested?

I have come across a similar behavior with an i7-2600 and GTX1070 on an Asus Z68 using BCLK to run at 4440Mhz.

Similar to this situation, Graphics and physics scores were great but the combined was pretty bad and it took me ages to find the solution. I discovered that increasing VCCIO from 1.05 to 1.1180v improved the combined workload imbalance and increased vram overclock headroom. I also discovered that the CPU PLL voltage, as you increased it a step at a time would adjust the balance between the Graphics and and physics scores. I settled on 1.818V as it provided the best balance in performance and really improved the combined scores.
Other gaming frame rates at 1080 went up in line with the combined FS scores.

Looking at Ryzen on the CH6 this may be the solution to the "gaming" problem that has been observed to date. The SOC voltage, that you mentioned in relation to memory overclocking stability, is the direct equivalent to the Intel VCCIO voltage I think. You also have a CPU PLL voltage adjustment available.

Could you take a look at the effect that CPU PLL voltages above the 1.8v default have on the CPU+GPU load performance? Firestrike results looking at the combined score relative to the Graphics and Physics scores worked well for me in tuning the voltages and increasing gaming performance on the sandy i7. Maybe the same trick can work here?

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  #12  
Old 10-03-17, 10:24 PM
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Dicehunter Dicehunter is offline
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Great review !

Friend of mine just ordered this and the 1800X, Upgrading from an 8320 and Sabertooth 990FX
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  #13  
Old 11-03-17, 12:04 AM
Bartacus Bartacus is offline
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Tommy my lad, that's a great review. But I think a water cooling specific video would help the "wet masses". I've seen NO ONE do a decent breakdown of all these new water temp / flow sensors on the new Ryzen boards. You could be the first! Make it an hour long too, since there is no time limit on gaining valuable insight like this.

Great job as always Guv!
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  #14  
Old 11-03-17, 12:16 AM
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Thanks for another great review. It'll certainly be interesting to see how it develops as the BIOS and platform continues to mature.
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  #15  
Old 11-03-17, 08:42 AM
Shingara Shingara is offline
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Hi tom, great review, now this isnt an idea for you todo right here and right now. But would you consider doing a water cooling how to with this mb using new techniques like hard tubing, how pumps connects to boards, best ideas for flow meter and themal probe placement togo alongside your how to overclock video that your going todo.
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  #16  
Old 12-03-17, 02:21 PM
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BigDaddyKong BigDaddyKong is offline
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https://twitter.com/ASUS_ROGUK/statu...04207683182592

Is this a mid production change, or just general advertising for the board? They bill the tweet as a redesign.
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  #17  
Old 12-03-17, 05:41 PM
gtbtk gtbtk is offline
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Quote:
Originally Posted by BigDaddyKong View Post
https://twitter.com/ASUS_ROGUK/statu...04207683182592

Is this a mid production change, or just general advertising for the board? They bill the tweet as a redesign.
Looks like they have started using the same Heat sync that is on the Crosshair on their z270 hero as well. I dont think the original Z270 heatsync has the little cut out in the corner to let the light through
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  #18  
Old 13-03-17, 12:11 PM
Firedrops Firedrops is offline
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So, I've heard a bunch of stuff about why AM4 boards should be cheaper than ther intel counterparts, such as requiring less components etc.

So what's Asus' justification for this costing USD$20 more than the Z270 ROG Hero?
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  #19  
Old 13-03-17, 01:05 PM
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Quote:
Originally Posted by Firedrops View Post
So, I've heard a bunch of stuff about why AM4 boards should be cheaper than ther intel counterparts, such as requiring less components etc.

So what's Asus' justification for this costing USD$20 more than the Z270 ROG Hero?
Asus Tax
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  #20  
Old 13-03-17, 01:36 PM
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AlienALX AlienALX is offline
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Quote:
Originally Posted by Firedrops View Post
So, I've heard a bunch of stuff about why AM4 boards should be cheaper than ther intel counterparts, such as requiring less components etc.

So what's Asus' justification for this costing USD$20 more than the Z270 ROG Hero?
Looking at the ROG hero it seems there is only one set of phases. If you look at the power connector at the top of the board you will see it only has one 8 pin.

If you then look at the audio circuitry on the Z270 you will see six small Nichicon gold capacitors. There are far more on the Crosshair.

The power phases on the Z270 will need to be tiny compared to the Crosshair. The Z270 is a board made to run at the very most four cores and four HT threads. That's it. The Crosshair needs a metric ton of phases to handle CPUs double that (so 8 cores 16 threads) this means you need bigger phases and more of them.

The only similarities between the boards is the "hero" name. I don't know why Asus did that. You should be comparing the CHVI to the Rampage or something as high end as that.

I guarantee if this was an Intel board it would cost far more. Intel charge quite a large socket tax, chipset price etc.
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