AsRock x299 Taichi and Taichi XE Discussion Thread - Page 2 - Overclock.net - An Overclocking Community

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AsRock x299 Taichi and Taichi XE Discussion Thread

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post #11 of 35 (permalink) Old 03-11-2018, 03:25 AM
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Cool

Hi all,

For what it's worth, I've attached my Taichi XE UEFI settings to this post. Unzip and import at your convenience.

The objective was a very mild overclock with a 7920x, all important voltages are within Intel long-term recommendations (§5.5.1 p47 of https://www.intel.com/content/dam/ww...heet-vol-1.pdf)
Clocks are 40x all core, 28x mesh, 34x AVX2, 30x AVX3, and memory is clocked at 2666 with 14-14-14-34-1N timings, the kit is F4-4000C18Q-32GTZKW.
I've delided my 7920x, use it with the der8auer direct-die frame, NT-H1 paste and Noctua D15 cooler. Temps are +45°C over ambient for the hottest core in AVX2 load under prime95, with a 210W power draw with small FFTs as reported by hwinfo. And this is inside a Fractal R6 case with the 3 fans set to "silent" in the UEFI.
Tested for 3h under prime95, and overnight with memtest.













Quite happy with this setup (apart for the R6 case, still quite loud even in "silent" settings for the fans)
Attached Files
File Type: zip U235-TaichiXE.zip (1.6 KB, 20 views)

Last edited by U235; 03-11-2018 at 03:46 AM.
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post #12 of 35 (permalink) Old 03-12-2018, 03:16 PM
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Ok I tried pushing multiplier to 42 to see if my settings would stretch that far with low voltages.

It "kinda works", but the core voltages are then spread between 1.11 and 1.15V, up from ~1.05V at 4.0GHz, and this is with the settings in the last screenshot for the FIVR section. So I still ask for 1.05V and end up with 1.11 to 1.15V. Either adaptive voltage doesn't work, or it works in a way I don't understand. If I try override, I get exactly what I ask for, and exactly same value for all cores. But I want the voltage to change according to dynamic multiplier. I did not try a long stability test at 4.2GHz and 1.11 to 1.15V, but hwinfo shows 172W of power draw, and temps are still under 45°C deltaT with ambiant like for AVX2 @34x, so it looks like a D15 can still manage a delidded 7920x @4.2GHz without much issues.

I tried to put 0.9V instead of 1.05 for "vcore adaptive voltage" just to see the effect, it's the only value I changed in the screenshot above. I still end up with 1.11 to 1.15Vcore at 4.2GHz, like it doesn't care at all about input voltage values past 4.0GHz or so. Do I miss anything ?

Last edited by U235; 03-12-2018 at 03:21 PM.
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post #13 of 35 (permalink) Old 03-12-2018, 04:08 PM
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Any particular reason for the low 2666 ram clock? You should be able to do much better with that kit/CPU.
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post #14 of 35 (permalink) Old 03-13-2018, 01:05 PM
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Yea I know this b-die kit is supposed to deliver, but apart from memory and compression/decompression benchmarks it hardly makes any difference in real life, much like mesh speed. Now many people run their memory way faster, but each to their own, can't argue with that
I prefer to stay on low voltages and try to tighten timings if possible. I did not look into this yet.
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post #15 of 35 (permalink) Old 03-14-2018, 12:59 PM
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Did some additional testing, also playing with Intel XTU which saves some time.
The input field "vcore adaptive voltage" (where I've entered 1.05V in my screenshot) is completely ignored by the UEFI. After some reading, apparently the CPU has an internal vcore <=> clock multiplier table, and the only way to influence it is by using the offset value.
Adaptative works quite well for me at 40x/34x(AVX2), but if I bump multiplier to 42x all other settings being the same, then it throws more vcore than needed. But if I use an offset to decrease vcore at 42x, then the same offset applies to 34x AVX2 which gets unstable... it's a catch 22.
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post #16 of 35 (permalink) Old 04-02-2018, 11:22 AM
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Hi all--

I just picked up an x299 Taichi XE and a 7900X. I'm in the process of building a fairly aggressive custom water loop to cool it (two 420 and a 480 rad) and hoping to overclock heavily along with a single 1080TI to start. My initial question: How important is it to water cool the VRM on the Tacihi XE or have a dedicated fan blowing on it? I'm looking to be in the 1.3 vcore range and hoping to use my Supremacy EVO block without need for a monoblock.
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post #17 of 35 (permalink) Old 04-04-2018, 01:37 PM - Thread Starter
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Didnt exactly like OKGear
Both sellers sell same OKGear yet they look different in color and perhaps wire thickness ; must be product iterations?

https://www.coolerguys.com/products/...-12v-and-5v-dc
* Wires look thin and one disconnected under slight force from connecting (Partial Refund)

https://www.ebay.com/itm/4-Pin-Molex...53.m2748.l2649
* All switches in this batch defective ; full refund

The wiring is done in such a way to use cheaper cost switches

Decided to make my own ; use slightly more expensive switches ; KISS method
I'll see how it goes
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post #18 of 35 (permalink) Old 05-21-2018, 05:30 AM
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Am looking over x299 boards, and the Asus owner's reports are not favorable about reliability. But I've been hearing the Taichi XE is one of the best regardless of price. Only thing is no buttons. Is this the one to get? Or should I consider stretching to the Formula or OC? Want to run 7980 or 7960 full bore.
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post #19 of 35 (permalink) Old 06-20-2018, 02:02 AM
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I decided on the OC Formula, based on the OC features. 7980xe not delidded. H115i Pro 2x140. 64 GB 3733 C17, EVGA 1080ti SC2, Samsung 970 EVO NVMe ssd, Seasonic 1000w Platinum. Still in early stage, not updated BIOS yet.

Current settings: x45 all core, 1.125v static, mesh x24, no offsets, mem 3200, max 500A, 350w max long term, 500w max short (1 sec) term, Bench Tweeker enabled. AVX 3, AVX512 5, GPU 2075 core, 12100 mem.

Right now, CineBench=4250. Temp 85 deg, rising to 91 by 10th rep. CPUMark =32600, temp 79, rising to 85 after 10. GPU stable 4200 score/167 fps at 70 deg on Heaven. No longer term tests yet. The ssd scores are a lot lower than spec, but Asrock told me they are normal.

Don't know long-term heating under load yet, but in the 750D Airflow, I have a 150mm Noctua push on the back, two Corsair 140mm PWM push for CPU on top, two of the same pull on the front, and a Noctua 120mm pull on the bottom.

Since I'm pretty new at this, advice welcome for further tuning. Don't want to do custom loops, would consider re-lidding. Want to optimize for Premier or Pinnacle 4K editors. Thanks.

Last edited by hdtvnut; 06-20-2018 at 02:34 AM.
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post #20 of 35 (permalink) Old 10-21-2018, 05:44 AM
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Did someone try the new taichi 2.10 bios?
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