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Updated: ASRock Z370 Z390 user discussion thread + Review: ASRock Z390 Phantom Gaming-ITX/ac

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post #11 of 412 (permalink) Old 04-16-2018, 08:47 PM
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In the past, I've used offset with 2500k and 2600k on asus mobo's for few years. I understood offset from that time and how voltage varies with load, but this generation's seems to add more layers I'm guessing.

I did brief attempts with offset on Taichi mobo. In my case: 49x cpu ratio, cache 44x, min cache auto, mostly auto everything else. I found fixed 1.31vcore llc1 worked for my chip for 4.9ghz 0 avx.
Offset -60 llc1 yielded varied results, like vcore and vid would spike under IBT, realbench, or x264 stability test. Approaching 1.4vcore or 1.44v.
Offset -120 llc1 didn't boot.
Offset -110 llc1 seemed closer to expectation because under the same tests, vcore might go to 1.376v in IBT, or 1.344v in realbench, or 1.296 in cinebench, or 1.26-1.28v in superposition bench.
Using hwinfo. Windows balanced power plan, edited min processor state 45%. I saw other posts about offset, about how if the value is too high, even large difference from idle's volt might be unstable. I would like the vcore to only go up to 1.31v, fine with a bit more but not 0.080v more. I'm trying to understand and have been looking for templates, guidelines, examples, etc.

Based off user Aisuga's post in another thread:
Quote: Originally Posted by Aisuga View Post
There's nothing wonky about dynamic/adaptive/offset voltage on the Gaming 7. You guys are simply missing a crucial setting (which btw you'd have the same issue with ASUS), IA AC/DC Load Line. You have to basically disable it so that the dynamic voltage is close to what you want it to be otherwise you're on full SVID mode basically. On Gigabyte it's controlled by 2 settings. In the same place you find CPU LLC, you also have another Internal AC/DC Load Line item, leave it on auto. Then in another section of the bios named "VR control" or something similar, you have to type 1 for both IA AC and DC. The big difference is finally the DVID will be equal to VID +/-offset and modified by your chosen LLC. It becomes super easy to figure out what offset you need for a given voltage.
I'd recommend finding what voltage you need with fixed voltage first and then once you have that number apply an offset that will give you the same voltage.

I think the real issue with both Gigabyte and Asrock (as they have the same issue), is that they haven't made a guide for newbs, so people struggle figuring out how to do dynamic voltage.

As for the sensor that get knocked out, it only happens with HWinfo for some reason, if you use any of the Gigabyte monitoring software it works fine.
And after reading his following posts from that thread, it makes some sense to me. I don't know what the Asrock equivalents are for the above settings.
Also another thread: ASRock Z370 Taichi - Adaptive Voltage Option?, it seems more reliable to just stick with fixed.

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post #12 of 412 (permalink) Old 04-21-2018, 01:33 AM
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Quote: Originally Posted by encrypted11 View Post
It'll be nice to see some settings, they could be a starting point for someone else *snip*
Had some time to find a nice easy starting point from which to move from:

4.8GHz @ 1.34v load (1.36v peak)

Core ratio (all cores) 48
Cache ratio 44
Spread spectrum disabled
AVX offset 0 (auto)
FLCK 1GHz

Voltage Type OC
Voltage Mode Offset
Offset value -40
LLC Level 2 (I tried LLC 1, with an even lower offset (-60), and while it still worked LLC 1 held the voltage above 1.34v even at a lighter load, so i found better temps and voltages on llc 2)
Short & long Power duration MAX
Current limit MAX

No errors on OCCT etc, and games without error

System: Intel i7 8700K delidded Griz | ASRock Z370 Taichi | Gigabyte GTX 1080 G1 gaming 8Gb | Samsung 960 EVO NVMe | Samsung 1Tb F2 | WD 1Tb | Corsair 750TX v2 | 32Gb (2x16) Corsair Vengence | Corsair K90 Keyboard | Coolmaster MLP 140 | Corsair Carbide 400C | AOC 27" 2560x1440 | Windows 10 Pro 64bit | Linx10 & Linx 12v64 Tablets - ED: CMDR Aramil Lorrathain 
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post #13 of 412 (permalink) Old 04-21-2018, 04:00 AM
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Subscribed, Got a Taichi that I need to find time to test

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post #14 of 412 (permalink) Old 04-21-2018, 05:42 AM
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i <3 my taichi

after trying to get an offset voltage OC going, I kept getting some inconsistent results and settled in on a fixed voltage oc that's working great!

x50
uncore x47
vcore 1.31v (1.312v at load in cpuz)
LLC 1
G.Skill Snipers (hynix) @ 3200mhz
FCLK at 800mhz

I see allot of people raising FCLK or system agent freq to 1ghz, is there any benefit to this?

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Last edited by mtbiker033; 04-21-2018 at 05:48 AM.
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post #15 of 412 (permalink) Old 04-21-2018, 05:44 AM - Thread Starter
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Taichi seems like a really popular board.
Here are some of my key settings (Z370 Fatal1ty Gaming-ITX/ac):

CPU Ratio: Per Active Core Ratios (Per Core) @ 1.296-1.328V (1.344V peak)
1 Core Ratio: 53
2 Core Ratio: 53
3 Core Ratio: 52
4 Core Ratio: 52
5 Core Ratio: 52
6 Core Ratio: 52
Cache: 45
Spread Spectrum:
Bclk aware SVID: Enabled
AVX Offset: 0 (Auto)
Fclk (System Agent): 800MHz
iGPU: Disabled

Voltage Type OC
vCore control mode: Offset
Offset value: +90 (chip has 1.072V "default VID". VID on load goes up to 1.28V as of P1.90, previously up to 1.26V with P1.40)
LLC Level 2 (~40-60mV droop on load, the resultant idle vCores are higher (0.7V+ than ~0.6V), the "idle overvolt" would have prevented any low load instability that might occur with probably with tight LLC (L1)
VCCPLL: 1.14V
Long/Short Duration Power Limit: 200W (BIOS lock)
Current limit: 255.50 (Unlimited)
Handbrake AVX2, OCCT 4.5.1 LDS tested

Mem - Google Stressapptest tested:
B-die 8GBx2 @ 4000MHz C16-17-17-38-1T (My daily, due to low IMC volts)
Profile Link: https://www.overclock.net/forum/5-int...l#post26508148
B-die 8GBx2 @ 4400MHz C18-19-19-39-2T
Profile Link: https://www.overclock.net/forum/5-int...l#post26675113

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Last edited by encrypted11; 04-21-2018 at 05:55 AM.
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post #16 of 412 (permalink) Old 04-21-2018, 06:11 AM - Thread Starter
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Quote: Originally Posted by mtbiker033 View Post
I see allot of people raising FCLK or system agent freq to 1ghz, is there any benefit to this?
What AnandTech had to say on a 6700K.
https://www.anandtech.com/show/9607/...-optimizations


A lower system agent frequency does allow you to run lower VCCIO and VCCSA voltages while retaining equal memory clocks. I've personally found no issue stabilising a 4000MHz C16-1T mem profile on 800MHz Fclk. But I've found that 1000MHz on 4266MHz + mem it was necessary.
If you're having large SA/IO voltage and 'safe' temperature margins, 1000MHz Fclk are most probably a keeper.
However if you're running a HTPC or load temperature bound machine, then leave no expense on accumulating extra temperature margin. I'm on a 120+240mm slim rad custom loop shared between an 8700K and 1080 Ti, so in my opinion 800MHz Fclk + SA 1.1V + IO 1.02V was a sweet number for 4000MHz C16-1T.

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Last edited by encrypted11; 04-21-2018 at 06:18 AM.
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post #17 of 412 (permalink) Old 04-21-2018, 01:35 PM
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Quote: Originally Posted by encrypted11 View Post
What AnandTech had to say on a 6700K.
https://www.anandtech.com/show/9607/...-optimizations


A lower system agent frequency does allow you to run lower VCCIO and VCCSA voltages while retaining equal memory clocks. I've personally found no issue stabilising a 4000MHz C16-1T mem profile on 800MHz Fclk. But I've found that 1000MHz on 4266MHz + mem it was necessary.
If you're having large SA/IO voltage and 'safe' temperature margins, 1000MHz Fclk are most probably a keeper.
However if you're running a HTPC or load temperature bound machine, then leave no expense on accumulating extra temperature margin. I'm on a 120+240mm slim rad custom loop shared between an 8700K and 1080 Ti, so in my opinion 800MHz Fclk + SA 1.1V + IO 1.02V was a sweet number for 4000MHz C16-1T.
thank you for this!

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post #18 of 412 (permalink) Old 04-21-2018, 07:18 PM
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I have disabled speedshift in bios, it was making my clocks act weird (in win10).

I plan after a long period of stability to try rasing my cache to 4.4 (is on 4.0 with a 4.8 cpu clock so 800mhz down.)

Regarding dynamic voltage I originally had problems, the problem was a lot of my time was trying to get it working right on a faulty motherboard, once I got the new board in I was in a rush to get it live so did less testing but basically my experience was something like this.

On the newer bios's on faulty board.

Bios 1.10, 1.30 both tried plus I think a 3rd bios version also.

LLC1 would spike voltages way too high underload although was stable but as an example if the bios was 1.31v in bios, I could boot into the OS, do a AVX test and load would pike voltage up to around 1.4v which was bonkers.
LLC2 would have more sane voltages but be unstable.

New board arrived with bios 1.00 which apparently has broken LLC.

On my testing on this board things "just worked" and with the stability, I didnt bother doing any bios updates or adjusting LLC.

Voltage droop if there is any is minimal and voltages doesnt go to crazy levels under AVX load and system is stable.

Bear in mind it didnt just work with what I threw at it e.g. 5ghz needs 1.38v to be stable under AVX which I didnt like, it wont even boot into linux below that voltage, 4.8 (my current clock) is fine tho at a much lower voltage of 1.28 no AVX and about 1.31 with AVX. These voltages are very similar to what was needed on the first board, but the difference is with the new board, offset mode behaves itself, on the first board it was a mess.

Forgot to mention my board ia a k6 fatality. I love it, way more goodies vs similar priced boards from other manufacturers, especially vs asus. The debug led is what allowed me to determine the fault of the first board as well.

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Last edited by chrcoluk; 04-23-2018 at 04:01 PM.
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post #19 of 412 (permalink) Old 04-21-2018, 07:39 PM - Thread Starter
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The frequency readings would fluctuate on the balanced power plan 4.98GHz, 5.21GHz, 1.2GHz etc.

The frequency ramps on an "as needed" basis. But the readouts will most probably appear closer to a static number on the high performance plan. If you're running a lightly threaded load like an MMO application, you'd probably see wildly low clock readouts from low CPU usage (say 3-4.5GHz on probably a 5.1GHz OC) on balanced at a negligible impact and very low vCore.

But if you're feeling uncomfortable with dynamic voltage and frequency numbers turn it off.

But ASRock LLC is on a different number scale compared to ASUS LLC
I'd say
Asrock L1 is approximately ASUS L5.5 or 6
L2 is between ASUS's L4-5
L5 is probably no LLC.

@chrcoluk if you're planning to allow cache downclocking, "Auto" on Min Cache Ratio would achieve the same result as leaving the value on 800MHz manually.

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Hard Drive
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Last edited by encrypted11; 04-21-2018 at 07:48 PM.
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post #20 of 412 (permalink) Old 04-22-2018, 06:04 AM
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I just completed my first build yesterday using the Extreme4. I'm a bit of a novice on a learning curve. So far the only things I did were enable XMP profile and the multi-core enhancement as I couldn't figure out why I was running @ 2133 & 4.4mhz. Although having done some reading today I'm not sure either was such a great idea.

Anyway, I just wanted to drop in and say Hi.

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