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Z370 / Z390 VRM Discussion Thread

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post #3991 of 4244 (permalink) Old 02-23-2019, 02:46 PM
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Quote: Originally Posted by GRat View Post
I know the discussion is centered around the 9900k but I was thinking of building a system in a Corsair 280X so I was wondering how the iTX bunch of the Z390 would fair with a 9600K.

Ideally I would like to be able to overclock, but I would not want to go over 1.35V on the vcore to get ~4.9Ghz.
So if my math is correct then..

OC Wattage = TDP * ( OC MHz / Stock MHz) * ( OC Vcore / Stock Vcore )²
= 95 * (4900/3700) * (1.35/1.1)²
= 95 * 1.324 * 1.506
= 189Watt

That's 140Amps let's say 154A @90% efficiency.

The Asus one seems to be the only one that has cooling on the top portion of the VRMs, the Gigabyte and the Asrock ones don't.
Will any of these be able to handle an OC on the 9600K?

**EDIT**

Just realised there is the ROG MAXIMUS XI Gene too that should be more than sufficient..
Top part of Asrock VRM is for iGPU, so it only matters if you're pushing absurd power through the Intel iGPU. The Asrock Phantom ITX VRM is the best for ITX form factor and it comes with Thunderbolt built in, if you can get a Maximus XI Gene it will likely be better but at a cost of space (board size) and also cost (especially if you need to import it).

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post #3992 of 4244 (permalink) Old 02-23-2019, 02:49 PM
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Thanks for the input, I plan on disabling the igpu anyway!

_.=5 GHz Overclock Club=._
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post #3993 of 4244 (permalink) Old 02-23-2019, 04:19 PM
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Quote: Originally Posted by bl4ckdot View Post
A friend want it and I'm not using a custom loop with the Formula sooo yeah. This is a good opportunity for me to go with a z390 board.
Aside from 9th gen out-of-box support, what's different with z390 vs z370 ?

I have a MSI z370 Krait gaming, very similar to the Carbon Pro. When I was OCing my i5-9600k wrongly, way too much voltage, upto 1.39 in BIOS, my MOSFET sensor still never went over ~65C iirc. I hope that's the real temp, right on the MOSFET's, maybe it's just the average heatsink temp. IDK. Anyone really know where the MOSFET sensor is on their mobo ?

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post #3994 of 4244 (permalink) Old 02-24-2019, 04:30 AM
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Quote: Originally Posted by Kaltenbrunner View Post
Aside from 9th gen out-of-box support, what's different with z390 vs z370 ?

I have a MSI z370 Krait gaming, very similar to the Carbon Pro. When I was OCing my i5-9600k wrongly, way too much voltage, upto 1.39 in BIOS, my MOSFET sensor still never went over ~65C iirc. I hope that's the real temp, right on the MOSFET's, maybe it's just the average heatsink temp. IDK. Anyone really know where the MOSFET sensor is on their mobo ?
Not much difference, but I wasn't seeing myself get a new Z370 board in 2019 ^^. I got the Maximus XI Extreme in the end. For your case, I don't know much about MSI

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post #3995 of 4244 (permalink) Old 03-01-2019, 06:35 AM
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https://www.gigabyte.com/Motherboard/Z390-M-rev-10#kf
this new model looks good

dual m.2
alc892 (7.1)
intel lan
nice heatsink but 4+2 only
4 ram slots
type c on the back io but it is gen 1 only


btw recently z390 gaming sli has new caps that seems to be japan ncc caps instead of tawanese apaq caps in the past.
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post #3996 of 4244 (permalink) Old 03-01-2019, 02:32 PM
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Quote: Originally Posted by Kaltenbrunner View Post
Aside from 9th gen out-of-box support, what's different with z390 vs z370 ?
Native intel usb3 gen2 port, usually better VRM.

new rig 2019:
Intel 9900k >5ghz | Asus Maximus XI Gene | Eisbaer 360 LT (custom loop in progress) | bequiet! Dark Base 700 white edition | Team group Nighthawk 16GB 4000mhz | MSI RTX 2070 Armor | Storage: Intel Optane 900p 280GB + Samsung 970 evo plus 1TB + WD Red 3TB | Corsair HX850i | Benq BL3200PT 1440p | 1Gbit ftth |
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post #3997 of 4244 (permalink) Old 03-02-2019, 01:08 PM
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Quote: Originally Posted by AlphaC View Post
* There's a $10-15 premium from the Aorus Elite to the Aorus Pro. The Aorus Elite lacks a heatpipe at the VRM heatsink, is using Apaq Taiwanese capacitors rather than Japanese FP caps, has lower number of fan headers, and also lacks USB 3.1 gen 2 type C at the rear panel. I don't feel that going $10-15 cheaper is worth it for this reason.
Hi. Could you tell please where you get the info about capacitors from?
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post #3998 of 4244 (permalink) Old 03-02-2019, 01:23 PM
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Quote: Originally Posted by Grisk View Post
Hi. Could you tell please where you get the info about capacitors from?
By reading them off the capacitors in the images on all the reviews and the official sites.


You can use fc2 as a reference.


http://capacitor.web.fc2.com/


Apaq site : http://www.apaq.com.tw/en/product


If it's how to read capacitor:
https://www.engineering.com/Electron...-Markings.aspx

https://learn.sparkfun.com/tutorials...tion-guide/all
https://www.buildcircuit.com/capacitors/

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post #3999 of 4244 (permalink) Old 03-03-2019, 02:00 AM
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Thanks!
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post #4000 of 4244 (permalink) Old 03-05-2019, 12:54 AM
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Quote: Originally Posted by elmor View Post
CPU Loading = Output current, the re-naming seems like a bad attempt at making it easier to understand. Saying higher/lower LLC is adding to the confusion since lower LLC Level on Asus = higher load-line, while a lower LLC Level on Asrock = lower load-line. It's preferred to either specify higher/lower load-line or droop as that can't be misunderstood.
Sorry for answering late, we just moved.

Yes, the whole load-line nomenclature seems unnecessarily convoluted. Thanks for sharing information that clarifies some things to end-users.

The whole ringing (voltage oscillation) part doesn't seem to be grasped by everyone, especially how it can affect stability. Falkentyne keeps firing at us that you found out about ringing also happening at constant (high) load, not only when load changes happen?! How relevant are is the delta of over-/undershot at constant loads in practice then?
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K6 Motherboard , Msi , voltage regulator , z370 vrm , z390 , z390 vrm

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