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VRM on the new AM4 motherboards - Page 109

post #1081 of 1994
Quote:
Originally Posted by NightAntilli View Post

After reading, I can understand both sides of the argument regarding the Titanium. The VRMs are not exactly the highest of quality, thus the board is overpriced. But I can also get the argument that if power consumption is less in practice, why does the VRM need to be so beefed up? I mean...;





Source; https://tweakers.net/productreview/159123/gigabyte-ga-ax370-gaming-5.html


The trashing of the VRM of the Titanium seems a bit exaggerated. I still don't think it justifies paying $300 for the Titanium though. Might as well go for the Prime X370 Pro from Asus, which is almost half the price ($160 at the time of writing).

I suppose it'll come down to what the BIOS auto-sets the NB voltage at. Some boards seem to start at 1.0v. Stock on the Titanium is 0.800v, which goes up to 0.850v (extra LLC) at 2933 (A-XMP disabled). If they retested with newer BIOS revisions and A-XMP on, power consumption would rise quite a bit as it bumps the NB to 1.0v at 2933 and 1.2v at 3200. It just depends.
post #1082 of 1994
Quote:
Originally Posted by yendor View Post



Why beefier vrm? Better power delivery. Presumably more reliability under load. Some are more capable than others. Better able to function at temps one never wants to see vrms at for example.

As I noted elsewhere, those "beefier" VRMs on the CH6 and TAICHI fail miserably at a much lower temp than the NIKKOs. It's in their spec sheet for those who bother to look. The reality is you shouldn't be hitting 90c+ at you VRMs but that is when those start to hit a wall and drop to only 10 amps at a max temp of 120c.

http://www.ti.com/lit/ds/symlink/csd87350q5d.pdf

So they are not beefier, they are more efficient at lower temps but have a more limited operating range.
post #1083 of 1994
Quote:
Originally Posted by JasonMZW20 View Post

I suppose it'll come down to what the BIOS auto-sets the NB voltage at. Some boards seem to start at 1.0v. Stock on the Titanium is 0.800v, which goes up to 0.850v (extra LLC) at 2933 (A-XMP disabled). If they retested with newer BIOS revisions and A-XMP on, power consumption would rise quite a bit as it bumps the NB to 1.0v at 2933 and 1.2v at 3200. It just depends.

True, but less so for tests with overclocks as those voltages would be manually set.

I'll use current reviews as a general counter claim, but I don't yet think any review is indicative of the optimal capability of any of these motherboards yet. I would think that level of assurance is a few months out still...
post #1084 of 1994
Quote:
Originally Posted by TheOldTechGuru View Post

Quote:
Originally Posted by JasonMZW20 View Post


Are you guys missing the HWiNFO64 panel to the right of the image? It's right there.

It happens in both, so the correlation is interesting. These issues no longer only occur during long idle, but occur during use as well (on 1.52 beta). I'm tempted to go all the way back to BIOS 1.1 just to make sure I don't have a board issue.

For some reason the right half was cut-off when I viewed the full-sized image. I would say you have a defective MB and should RMA it. You certainly shouldn't be getting those drop outs.

It's just a glitch - hardware is most likely just fine - had it happen on several motherboards , most often caused by power saving features. My titanium will do it too, if I enable CNQ C6 and use a power plan other than hp.
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post #1085 of 1994
Quote:
Originally Posted by cssorkinman View Post

It's just a glitch - hardware is most likely just fine - had it happen on several motherboards , most often caused by power saving features. My titanium will do it too, if I enable CNQ C6 and use a power plan other than hp.

Ah. I have been OC'd since day one and always disable both CNQ and C6 as my first steps when overclocking, so I would never see this behavior. Still seems odd these would drop in any situation other than a sleep mode, but I must defer for the aforementioned reasons...
post #1086 of 1994
Quote:
Originally Posted by TheOldTechGuru View Post

As I noted elsewhere, those "beefier" VRMs on the CH6 and TAICHI fail miserably at a much lower temp than the NIKKOs. It's in their spec sheet for those who bother to look. The reality is you shouldn't be hitting 90c+ at you VRMs but that is when those start to hit a wall and drop to only 10 amps at a max temp of 120c.

http://www.ti.com/lit/ds/symlink/csd87350q5d.pdf

So they are not beefier, they are more efficient at lower temps but have a more limited operating range.

Eh, post you're replying to here says nothing about whose vrms are beefier. Though a higher temperature range might be considered beefy.

So what i was wondering is why the kitguru consumption is so different from the tweakers consumption. Idle is half of the kitguru numbers. And load? prime drawing less power than cinebench?

O.o
post #1087 of 1994
Quote:
Originally Posted by TheOldTechGuru View Post

Quote:
Originally Posted by cssorkinman View Post

It's just a glitch - hardware is most likely just fine - had it happen on several motherboards , most often caused by power saving features. My titanium will do it too, if I enable CNQ C6 and use a power plan other than hp.

Ah. I have been OC'd since day one and always disable both CNQ and C6 as my first steps when overclocking, so I would never see this behavior. Still seems odd these would drop in any situation other than a sleep mode, but I must defer for the aforementioned reasons...

Boards like my 990 Extreme 3 or CHV-Z will show insanely high temps ( amonge other things) on HWINFO ( 190C) if the monitor goes to sleep while running p 95 etc.

EDIT: when @yendor wakes up...he will see I am in agreement. tongue.gif
Edited by cssorkinman - 4/25/17 at 10:33am
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post #1088 of 1994
Last of the ref clock boards snagged...got this one in LI NY.

Torture will happen soon. Socket voltage and 32g ram testing are top of the list



Btw no clue what you guys are seeing....but my ch6 is sitting @ 27c vrmwith 1.6v cpu @ 4.6....

Still believe software?
Edited by chew* - 4/25/17 at 11:22am
post #1089 of 1994
Quote:
Originally Posted by chew* View Post

Last of the ref clock boards snagged...got this one in LI NY.

Torture will happen soon. Socket voltage and 32g ram testing are top of the list



Btw no clue what you guys are seeing....but my ch6 is sitting @ 27c vrmwith 1.6v cpu @ 4.6....

Still believe software?

Looking forward to see your results, I have this board but will probably return it and get a C6H, VRM temps are way too high (I mean heatsink BURNS)
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post #1090 of 1994
Quote:
Originally Posted by bloot View Post

Looking forward to see your results, I have this board but will probably return it and get a C6H, VRM temps are way too high (I mean heatsink BURNS)

Yep i noted that in launch day review of ryzen but it was a ryzen review not a board review.

Needs active cooling in stress tests or at least gaming 5 did.

This board is my dime so i really have no qualms about ruffling gigas feathers now.
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