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post #1081 of 4250 (permalink) Old 11-17-2017, 03:21 AM
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Quote:
Originally Posted by RustySpoons View Post

I've always found ASRock to be solid boards, they do the job well and aren't too flashy.

Most Z370 boards are pretty solid except the vrms. You pay for better vrms. I don't like the 2 years warranty in asrock products and the bios.
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post #1082 of 4250 (permalink) Old 11-17-2017, 05:22 AM
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I would just get extreme 4 but it's not available here. That's why I listed those 3.
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post #1083 of 4250 (permalink) Old 11-17-2017, 06:46 AM
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Quote:
Originally Posted by Kertel1991 View Post

Most Z370 boards are pretty solid except the vrms. You pay for better vrms. I don't like the 2 years warranty in asrock products and the bios.
ASRock bios is better than Gigabyte and MSI.
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post #1084 of 4250 (permalink) Old 11-17-2017, 04:28 PM
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Z370 Pro4 : SM4337+ SM4336 variant





http://playwares.com/pcreview/55804025#

(It's not recommendable due to the top VRM section unheatsinked , as well as slower BIOS updates than anything from Extreme4 upwards.)

R50 chokes are used.

Also people paying attention will notice the 5K hour rated capacitors at the output side are rated for 3V. You will notice that MSI + Gigabyte boards use output capacitors rated for 6.3V even on their low end (i.e. Z370 HD3P or Z370 A PRO) so the higher output capacitance on the Asrock board was likely out of necessity. The STRIX boards also use 6.3V rated output capacitors.

Youtube review with power draw in CB R15 on Z370 Pro4 4.7GHz,130W (Click to show)
5GHz, 138W (Click to show)


https://www.youtube.com/watch?v=9lD4Yp1TNhQ

5.1GHz unbootable


* Compare to Extreme4 , 5GHz from another youtuber (143W CB R15) https://www.youtube.com/watch?v=mStzgl1w69Y (Click to show)

5Ghz Prime95 26.6 (non-AVX) @ 1.264V ~ 170W https://www.youtube.com/watch?v=-NEPf4v7Sc4 (Click to show)

5GHz AIDA64 ~ 130W (GB Aorus Z370 Gaming 5) Warning: Spoiler! (Click to show)
4.7GHz (MCE) Maximus X Hero ~130W Warning: Spoiler! (Click to show)
195W on Extreme4 , rendering with 5GHz 1.4V Warning: Spoiler! (Click to show)

Quote:
Originally Posted by Kertel1991 View Post

Maybe asrock have the best vrms but(always there is a but) have the baddest bios that I have seen. A friend has the Z370 K6 and use it with the version 1 bios. The 1.10 and 1.20 doesn't even boot his pc it stuck at post. Also 2 year warranty. Always
there is a trade of always noone give Rich features for free.
Sounds like a corrupt BIOS. There's a dual BIOS on the board so be sure to make use of it.


Taichi with Sinopower


https://hk.xfastest.com/3693/xf-open-box-asrock-z370-taichi-motherboard-review/


TUF PRO Gaming seems to use Sira12dp low side fet Warning: Spoiler! (Click to show)
http://www.vmodtech.com/th/article/asus-tuf-z370-pro-gaming-review/page/2


Maximus X Hero has full review up on ocaholic now

https://www.ocaholic.ch/modules/smartsection/item.php?itemid=4120&page=3

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post #1085 of 4250 (permalink) Old 11-18-2017, 01:44 AM - Thread Starter
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Quote:
Originally Posted by AlphaC View Post

Z370 Pro4 : SM4337+ SM4336 variant
[...]

So we can either get those NIKOs (PK618BA + PZ0903BK) or Sinopowers (SM4337 + SM4336)?
Layout seems to me like 8+2+1, power phases for VCC fake-doubled with one hs and one ls MOSFET and for VCCGT two native phases with one hs and two ls FETs each. Or would you interpret it different?
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post #1086 of 4250 (permalink) Old 11-18-2017, 04:03 AM
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Why are there two extreme 4 boards in the charts? Sorry if I missed something.
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post #1087 of 4250 (permalink) Old 11-18-2017, 09:01 AM
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Quote:
Originally Posted by weitz1991 View Post

Why are there two extreme 4 boards in the charts? Sorry if I missed something.
It come with two variants of the VRM.
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post #1088 of 4250 (permalink) Old 11-18-2017, 12:46 PM
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Quote:
Originally Posted by br0da View Post

So we can either get those NIKOs (PK618BA + PZ0903BK) or Sinopowers (SM4337 + SM4336)?
Layout seems to me like 8+2+1, power phases for VCC fake-doubled with one hs and one ls MOSFET and for VCCGT two native phases with one hs and two ls FETs each. Or would you interpret it different?

For Pro4 :

I'd use your judgement on that one. The VRM is uninteresting enough that it wouldn't matter that much. We have power draw figures suggesting it does shut down after about 130W.

It might even be like AM4 where MSI tacked on extra phases instead of "fake doubling" it. I see 3 small roughly 2x2mm ICs but the pictures of the back don't have anything like that so unless the person on Asrock forum was right about it being 6 phases (unlikely) then it should be fine.

The mosfets you mentioned are correct though. For some reason the top side of the board for Pro4 has them wired oddly. Usually high side is closer to input capacitor and low side closer to the output (inductor side).

The one on Playwares is definitely SM4337+SM4336 , the pictures are clear.

edit: also the Pro4 has a cut down I/O (no USB 3.1 gen 2) and ALC892 with 3 audio output jacks. It shouldn't be on anyone's buying list unless they are going for a bargain bin build (which at the time isn't practical since Coffee Lake is not even down to MSRP yet).

edit2: seems the older Fatal1ty H270 Performance used ISL95856 PWM with NIKO-SEM PK618BA + PZ0903BK


Zooming in on the Z370-P it looks as though it is 2x Sira12dp + Sira14dp.


https://motherboarddb.com/motherboards/426/
https://www.ple.com.au/Products/629466/ASUS-PRIME-Z370-P-LGA1151-CL-ATX-Desktop-Motherboard


https://www.bhphotovideo.com/c/product/1364722-REG/asus_prime_z370_p_lga_1151.html

Z370-H STRIX seems to have 4c09 for memory phases , but still no idea on what's under the heatsink

https://hard.rozetka.com.ua/asus_rog_strix_z370_h_gaming/p24948993/

https://www.ple.com.au/Products/629472/ASUS-ROG-Strix-Z370-H-Gaming-LGA1151-CL-ATX-Desktop-Motherboard
Backside

https://www.bhphotovideo.com/c/product/1364718-REG/asus_republic_of_gamers_strix.html

edit: seems the ASUS Strix B250H Gaming and ASUS Strix H270F Gaming used ON Semiconductor 4C06B + 4C09B


Z370-G STRIX seems to use Vishay SiRA14dp in the middle (likely for Asus Proclock)

https://www.ple.com.au/Products/629471/ASUS-ROG-Strix-Z370-G-Gaming-WiFi-LGA1151-CL-mATX-Desktop-Motherboard

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post #1089 of 4250 (permalink) Old 11-18-2017, 03:05 PM
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Oh I noticed you linked to my video with the power draw lol. Nice thx.

8700k
(10 items)
CPU
Intel Core i7 8700k
Motherboard
Gigabyte Z370 AORUS Gaming 7
GPU
EVGA GeForce GTX 1080 Ti 11GB FTW3 GAMING iCX
RAM
Corsair Vengeance LPX 32GB CMK32GX4M4A2666C15
Hard Drive
SanDisk Ultra II 480GB 2.5"
Hard Drive
PNY CS1311 960GB 2.5"
Power Supply
SeaSonic PRIME Titanium 850W 80+ Titanium Certified Fully-Modular ATX Power Supply
Cooling
Noctua NH-D15
Case
Fractal Design Define S ATX Mid Tower Case
Operating System
Windows 10 Pro
▲ hide details ▲


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post #1090 of 4250 (permalink) Old 11-18-2017, 03:43 PM
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Quote:
Originally Posted by navjack27 View Post

Oh I noticed you linked to my video with the power draw lol. Nice thx.

Would be really good if you can describe to us what your cooling setup is and how hot the VRM gets at every major wattage interval (~20-30W) along with the temperature inside the case.
i.e. 130-150W (roughly MCE / 4.7GHz) ,170-180W , 200-210W

P.S. should use hwinfo64 for current load


Found this neat graph on HKEPC

https://www.hkepc.com/15547/%E5%85%A8%E6%96%B0Coffee_Lake%E5%BE%AE%E6%9E%B6%E6%A7%8B_Intel_Core_i7-8700K_%E8%99%95%E7%90%86%E5%99%A8%E8%A9%B3%E7%B4%B0%E6%B8%AC%E8%A9%A6/page/7#view
Quote:
Overclocking space, the author has two retail versions of the Core i7-8700K in hand, both L729C133 batches and similar physique, to stabilize ultra-5GHz without opening the lid is very difficult, because the Die temperature has risen to 85 ° C , Using CORSAIR H80i v2 water-cooled radiator, after opening the cover to take 5GHz about 1.34v vCore and successfully passed the Cinebench R15 CPU Test, but 5GHz will be the Core i7-8700K frequency air-cooled overclocking resistance wall, one step over Requires 1.44v on 5.1GHz to complete Cinebench R15 CPU Test.


& hardwareluxx




https://www.hardwareluxx.de/index.php/artikel/hardware/prozessoren/44780-coffee-lake-overclocking-check.html?start=7


Taichi power draw at 5GHz looks around 187W package power

Prime95 ~ 290W


(https://www.youtube.com/watch?v=PJYHj2UX62c)


Z370 M5 backside information Warning: Spoiler! (Click to show)


http://detail.zol.com.cn/1186/1185085/pic.shtml


http://detail.zol.com.cn/1186/1185085/pic_548_1.shtml
Warning: Spoiler! (Click to show)


http://detail.zol.com.cn/1186/1185085/pic_14171_1.shtml

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K6 Motherboard , Msi , voltage regulator , z370 vrm , z390 , z390 vrm

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