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post #11 of 18 (permalink) Old 08-12-2019, 11:24 PM
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Quote: Originally Posted by etre View Post
I did that and seeing people complaining about the release of max version and slow bios updates for the old versions, I dropped MSI. Btw, max versions are nowhere to see in shops around here.

I wanted Asrock Pro4 jus because of the heatsinks and having more hi mosfets than gigabyte but had a longer delivery time.

I ended up with Gigabyte B450M Aorus. The only decent budget board readily available (although that's not a good sign), and with up to date bios. I hope I won't regret it.
Fingers crossed, good luck!

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post #12 of 18 (permalink) Old 08-12-2019, 11:53 PM
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You guys acting like drawing 95w max needs some super-duper VRM. I have a Phenom II X6 that will draw more than a 3900X.... pumped 155w through 4-phase mobo's for years with no issue.

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post #13 of 18 (permalink) Old 08-13-2019, 06:15 AM - Thread Starter
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Quote: Originally Posted by Redwoodz View Post
You guys acting like drawing 95w max needs some super-duper VRM. I have a Phenom II X6 that will draw more than a 3900X.... pumped 155w through 4-phase mobo's for years with no issue.
Well, for some reason ryzen runs hard on vrms.
For example this board I'm buying, the case is heating up noticeable around i-o and behind the cpu/vrms, with ryzen 3 2200g and a discrete gpu. That is from someone I know.

But I have better cooling, so I'll see. Maybe sell this MB later and buy something more suited once the things settle a bit.

Last edited by etre; 08-14-2019 at 01:16 AM.
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post #14 of 18 (permalink) Old 08-14-2019, 11:20 PM - Thread Starter
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Temps:

Idle
VrmCore 33C
VrmSoC 46C, 38C after installing these
http://www.enzotechnology.com/mos-c1.htm

Load: 40C both.

The board seems more than adequate to handle a 3600 with PBO on.
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post #15 of 18 (permalink) Old 08-15-2019, 12:01 AM
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Quote: Originally Posted by etre View Post
Temps:

Idle
VrmCore 33C
VrmSoC 46C, 38C after installing these
http://www.enzotechnology.com/mos-c1.htm

Load: 40C both.

The board seems more than adequate to handle a 3600 with PBO on.
Nice mate. subscribe to buildzoid on YT and watch his stuff as no one does reviews like he does.

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post #16 of 18 (permalink) Old 08-17-2019, 09:55 AM - Thread Starter
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Quote: Originally Posted by Ownedj00 View Post
Nice mate. subscribe to buildzoid on YT and watch his stuff as no one does reviews like he does.
You know, watching reviews on internet, I got really paranoid about vrm temps and so on. Buldzoid had one of those videos.

The other was:

I can tell you now, those videos are nothing but garbage. Sorry, maybe garbage is a harsh word but that's the truth. I don't contest the knowledge of those reviewers but treating some budget boards like it should perform as well under OC as 300 euro boards is ... lets say wrong.

"You need top down cooler, to cool the vrms" another advice that's totally wrong. I tested both. Temps are definitely better with a normal cooler. You don't cool the vrms , you heat them with stock coolers or wraith max.

In the screenshot you can see the temps with a proper cooler on cpu, Gammax 400 dual fan, after a few hours of gaming. A bit hot in the room because is summer but the case is cool to touch and the air evacuated in the back is not even warm.


I would say that Asrock Steel Legend, Pro 4, Gigabyte Aorus, Asus Tuf Pro, all are excelent choices and perform within 1-2% of the more expensive x570 boards.
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post #17 of 18 (permalink) Old 08-17-2019, 01:18 PM
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@ etre, there's a difference between a $200 board and a $300+ board but for normal users it's usually featureset.

If you aren't using a R9 3900X/R9 3950X (and in AVX loads) buying anything more than an Aorus Elite is mostly for quality of life features such as dual BIOS with switch , EC temp external sensors, or more fan headers.

A R9 3900X is literally 2x the cores and dies of the R5 3600 so if they're at the same all core clocks , given the same chip quality (generally R9 is better binned) the R9 3900X will consume nearly double the current and power.

Voltage scaling is less insane as the current scaling, because these chips require more current for a given power due to lower voltages. For a given powerstage the jump from 1.2V to 1.4V is 1.1x the power loss, which is far less than the proportion of voltage. However the low side fet losses with current scale exponentially since conduction loss is I^2*R.


In addition , due to the way Ryzen clock scaling works polling 1000 times a second (1ms) the power delivery has more constraints on time to respond.

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Last edited by AlphaC; 08-17-2019 at 01:22 PM.
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post #18 of 18 (permalink) Old 08-17-2019, 01:42 PM
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Buildzoid's reviews are worse case scenario but he will tell you way more then your average reviewer like HU,Bitwit, Jayz2cents and thats why i watch his reviews. Don't even get me started on HU youtube channel, hes Australian and doesnt even address his ozzie viewers. i can watch anyone on YT and see the same stuff HU does.

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