Z370 / Z390 VRM Discussion Thread - Page 220 - Overclock.net - An Overclocking Community
Forum Jump: 

Z370 / Z390 VRM Discussion Thread

Reply
 
Thread Tools
post #2191 of 4244 (permalink) Old 10-09-2018, 11:15 AM
New to Overclock.net
 
doom26464's Avatar
 
Join Date: Jun 2014
Posts: 786
Rep: 12 (Unique: 10)
I will be closely watching this thread in the comming weeks as I try to find a board for my 9900k.

Alot of the things in here are way over my head so hopefully some one does a basic buyers guide at given price points when the dust settles.


Overclocking and on board audio are most important to me.
doom26464 is offline  
Sponsored Links
Advertisement
 
post #2192 of 4244 (permalink) Old 10-09-2018, 11:36 AM
New to Overclock.net
 
Join Date: Oct 2018
Posts: 11
Rep: 0
Can anyone tell what the VRMs are like on the Gene?


https://www.overclock3d.net/reviews/...gene_preview/1
jasonwaterfalls is offline  
post #2193 of 4244 (permalink) Old 10-09-2018, 11:45 AM
Linux Lobbyist
 
jugs's Avatar
 
Join Date: Dec 2016
Posts: 102
Rep: 10 (Unique: 5)
Quote: Originally Posted by jasonwaterfalls View Post
Can anyone tell what the VRMs are like on the Gene?


https://www.overclock3d.net/reviews/...gene_preview/1
+1

Very interested in this board

TR Workstation
(8 items)
Intel Gaming Rig
(7 items)
CPU
Threadripper 1950x
Motherboard
Asrock X399 Taichi
GPU
XFX Vega 64
RAM
GALAX HOF DDR4-3600
Hard Drive
Samsung 960 EVO
Power Supply
EVGA SuperNOVA 850 G3
Cooling
Custom Loop
Case
Cougar Panzer-S Black ATX Mid Tower
CPU
8700k
Motherboard
Asus ROG STRIX Z370-I
GPU
Sapphire Radeon RX VEGA 64
RAM
G.SKILL F4-3600C15D-16GTZ
Hard Drive
Samsung 960 EVO
Power Supply
Corsair SF600
Cooling
Fractal Design Celsius S24
▲ hide details ▲
jugs is offline  
Sponsored Links
Advertisement
 
post #2194 of 4244 (permalink) Old 10-09-2018, 12:27 PM
New to Overclock.net
 
joeh4384's Avatar
 
Join Date: Mar 2014
Location: Detroit, MI USA
Posts: 827
Rep: 23 (Unique: 23)
Quote: Originally Posted by jugs View Post
+1

Very interested in this board
Me too. I am currently running ITX but it is just a tad small for all these monster GPUs that are getting released. I wish mATX would make a comeback because it would be ideal since there is less need for cases with a lot of HD Mounts and add-on cards etc. There are absolutely no high end AMD mATX boards and a handle full of intel ones for Z370 and it looks like even less for Z390.



joeh4384 is offline  
post #2195 of 4244 (permalink) Old 10-09-2018, 01:01 PM
Hardware Rep
 
GBT-MatthewH's Avatar
 
Join Date: May 2016
Posts: 522
Rep: 49 (Unique: 37)
Quote: Originally Posted by asdkj1740 View Post
Matthewh. What are the exact models of the igpu mosfets on z390 ud?
Vishay PPak 50A - 1H1L
GBT-MatthewH is offline  
post #2196 of 4244 (permalink) Old 10-09-2018, 01:06 PM
just some dude
 
Join Date: Jul 2014
Posts: 94
Rep: 17 (Unique: 14)
@AlphaC can you do your thing? Let me know if you need more photos.

Strix Z390-I:
Attached Thumbnails
Click image for larger version

Name:	Yzi7m3E.jpg
Views:	511
Size:	808.9 KB
ID:	223038  

Click image for larger version

Name:	pbFkKCI.jpg
Views:	337
Size:	684.7 KB
ID:	223040  

Click image for larger version

Name:	KATwfBE.jpg
Views:	579
Size:	835.2 KB
ID:	223042  

Click image for larger version

Name:	F3kilOj.jpg
Views:	304
Size:	845.0 KB
ID:	223044  

Click image for larger version

Name:	4OWipH7.jpg
Views:	363
Size:	693.4 KB
ID:	223046  


Last edited by sdch; 10-09-2018 at 01:18 PM.
sdch is offline  
post #2197 of 4244 (permalink) Old 10-09-2018, 01:13 PM
New to Overclock.net
 
Hackslash's Avatar
 
Join Date: Oct 2014
Posts: 172
Rep: 9 (Unique: 8)
Quote: Originally Posted by Pyromonkey83 View Post
How well do you expect the Maximus X Hero/Code to fair on the 9900k in overclocking? I purchased it about a month ago for $200 new on Amazon during a sale, and was hoping the higher end VRM would support the 9900k, but the Toms Hardware report that VRM thermals and throttling are concerning with Z370 boards. Do you think I'll be limited on everyday overclock levels around 5-5.3Ghz? I'm using an AIO 280mm cooler as well, so the only airflow is the 120mm Maglev exhaust fan above in my H500i case. I'm starting to think I'll have to pony up another $100 for a Z390 Taichi or Maximus XI Hero instead (and I only have ~6 days left in my return window to come up with a decision).
same (except the return possibility)... would love to know if my MXH is good enough for 5Ghz 9900k (with AVX)
Hackslash is offline  
post #2198 of 4244 (permalink) Old 10-09-2018, 02:44 PM
⤷ αC
 
AlphaC's Avatar
 
Join Date: Sep 2012
Posts: 11,209
Rep: 911 (Unique: 592)
Quote: Originally Posted by cletus-cassidy View Post
Helpful post as always. Any thoughts on the VRM throttling Tom's noted here: https://www.tomshardware.com/reviews...ew,5838-2.html

Trying to decide if I should should upgrade my z370 Taichi to a Maximus Formula, as I have a custom loop, and want to get at least a 5.1+ ghz OC.

Tom's hardware USA is terrible at testing things as OCN users have noted in the past and they don't provide any evidence of where their numbers came from or how they derived their load, I've seen inconsistencies between their reviews and every hwbot overclocking team's site (i.e. lab501 , overclockers.ru, overclockers.ua, etc.). You should look toward Tom's hardware Europe (FR / DE) for stuff from Igor Wallossek as he usually uses FLIR thermal image pictures and shows the PCB shots as well as temperature / noise graphs with thermal imagery video.
read: https://www.tweaktown.com/news/62951...lic/index.html

The takeaways from the Toms hardware "non-article" (using Prime95 small FFT) with a i9-9900K are : all boards reached relatively the same frequency ("129%" - "131%") Z370 Gaming 7 heatsink isn't scaling great with airflow (not surprised), Z370 Taichi heatsink isn't great in general because 158CFM doesn't seem to affect it, Z390 Taichi has voltage fluctuation suggesting immature BIOS, Z390 Pro Carbon tripped Overcurrent protection, Z370 Pro Carbon unusable.

It could just be early pre-embargo BIOS might not have proper power limits. I9-9900k testing is still under embargo which is why I'm hesitant to say anything definitive as Z370 Taichi is a solid board. Basing it mainly off power draw, feature-set, and what was obviously removed for cost savings that is my impression. YMMV depending on BIOS implementation (version and bugs) , chip quality, and motherboard anomalies.


You should also note which version of the Z370 Taichi you have, apparently there's two versions: a Fairchild FDPC5030SG and Sinopower SM7341EHKP version. You can tell by the memory section's powerblock mosfets.

Quote: Originally Posted by Pyromonkey83 View Post
How well do you expect the Maximus X Hero/Code to fair on the 9900k in overclocking? I purchased it about a month ago for $200 new on Amazon during a sale, and was hoping the higher end VRM would support the 9900k, but the Toms Hardware report that VRM thermals and throttling are concerning with Z370 boards. Do you think I'll be limited on everyday overclock levels around 5-5.3Ghz? I'm using an AIO 280mm cooler as well, so the only airflow is the 120mm Maglev exhaust fan above in my H500i case. I'm starting to think I'll have to pony up another $100 for a Z390 Taichi or Maximus XI Hero instead (and I only have ~6 days left in my return window to come up with a decision).
see above reason why I dont trust Tom's hardware USA. If you aren't using AVX instructions it should do fine as it uses 8x 60A powerblocks. At worst you can sell the Z370 off and get a Z390 but I highly doubt that it will be a large issue.



Quote: Originally Posted by jasonwaterfalls View Post
Can anyone tell what the VRMs are like on the Gene?

https://www.overclock3d.net/reviews/...gene_preview/1
May be 10+2 phase since 12 chokes are used as opposed to an odd number such as 11 or 13. This assumes that IO + System Agent (SA) are not routed at that area. Mosfet quality is unknown , 10K FP caps from Japan are used. Impossible to tell anything definitive without heatsink removal or the back of the board.



Quote: Originally Posted by Hackslash View Post
same (except the return possibility)... would love to know if my MXH is good enough for 5Ghz 9900k (with AVX)
i9-9900k performance (power scaling with voltage, AVX power usage) is under embargo so anything to do with AVX or AVX2 enabled is truly unknown or a guess based off the 14nm i7-8086K at this point.


----


sdch , it looks like the Z390-I STRIX is using the same Onsemi NCP302045 powerstage (rated 45A) as the other STRIX boards. I truly doubt it can effortlessly handle over 160W or so , it's half the powerstages as the STRIX Z390-E and Z390-A. Peak efficiency for the powerstage is roughly 91% and that's without a ~1.1X scaling factor for 1.3 or 1.4V output voltage.
For example at 150W output and 1.3V you would have roughly 4.5W of power to be dissipated for each of the 4 powerstages (see figure 7 and figure 12). Even using the highly optimistic 12.4°C/W thermal resistance figure you'd be over 100°C quite easily ; using a realistic 20-30°C/W from an average VRM heatsink and you'd likely be well over the recommended 125°C. http://www.onsemi.com/pub/Collateral/NCP302045-D.PDF


Unless you have to buy an ASUS board I'd probably look into the Asrock Z370 Fatal1ty ITX or Asrock Z390 Phantom ITX as they are proven to be able to push older i7 hexcores with airflow due to using 5x thermally enhanced 60A ISL99227B powerstages that are more efficient , are normalized against a much higher 1.8V, and have lower thermal resistance due to the exposed junction (get hot less easily when heatsinked). It also comes with Thunderbolt 3 built in.


-----------


There's been ROG Maximus XI Hero testing vs the older Maximus X Hero :
https://www.allround-pc.com/artikel/...aximus-xi-hero


The newer board actually fared worse at times with the i7-8700K either due to vulnerability patches or due to early firmware.

► Recommended GPU Projects: [email protected] , [email protected] (FP64) (AMD moreso) ► Other notable GPU projects: [email protected] (Nvidia), GPUGrid (Nvidia) ► Project list



Last edited by AlphaC; 10-09-2018 at 03:02 PM.
AlphaC is offline  
post #2199 of 4244 (permalink) Old 10-09-2018, 03:16 PM
Linux Lobbyist
 
Join Date: Oct 2018
Posts: 3
Rep: 0
Thanks a ton for the reply AlphaC. My primary uses are gaming and Adobe Premiere, which to my knowledge don't use AVX, so I'll keep the MXH for now. Worst case scenario if I notice issues, I'll sell it and grab a Maximus XI Code or something for the fancy overlay (If I'm spending another $100 on a mobo, whats $50 more in the process for looks, right? XD). Appreciate as always your dedication to the forum!
Pyromonkey83 is offline  
post #2200 of 4244 (permalink) Old 10-09-2018, 03:24 PM
New to Overclock.net
 
Recipe7's Avatar
 
Join Date: Apr 2010
Location: Los Angeles
Posts: 1,221
Rep: 63 (Unique: 60)
Can anyone disway me from making the Maximus Formula as my motherboard of choice for z390? I am thinking it is the most obvious selection as i am already running a custom loop on my x99.

Recipe7 is offline  
Reply

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

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off