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VRM on the new AM4 motherboards - Page 110

post #1091 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?

So is it software reporting this or was it the actual temp?
    
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post #1092 of 1994
No thrills just facts unbox and compare.

https://youtu.be/WzpekD3mbFo
post #1093 of 1994
Quote:
Originally Posted by AlphaC View Post

It's 4 phases doubled to 8 for the CPU via IR3599 & they're using the same parts as in ROG Maximus boards.

Unlike for Intel they needed the two phases from the PWM controller for SOC.
ASUS offers a hybrid water/air VRM cooler in their higher-end Intel boards and has since 2013. Gigabyte also has one of those on Intel.

So, "the same parts" is only a subset of what's available on Intel.
post #1094 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'm under the impression, based on what ASUS said with the Crosshair, for instance — that power consumption increases with things like turning up the intensity, and capability, of the power delivery system (e.g. switching frequency and LLC level). So, having a lower consumption could just mean a less responsive lower-performance power system or settings, eh? Other factors, though, could also be involved.

Without knowing what factors are responsible for power consumption level it's not necessarily a very useful metric for board comparison.
post #1095 of 1994
Two tests, doing well somehow, maybe it should be black and yellow, like bumblebees. I hear they can't fly....
post #1096 of 1994
I know you read this thread gigabyte so here you go.

The shortcomings of IR3553 and not making an AM4 specific heatsink tuned and tailored to your vrm with load on r7.....

SOC sink is acceptable.......vcore vrm sink is far from acceptable.......73c with a fan over vrm peak so far...

shall I take the fan off vrm and keep testing or do you get it now?

k7%20degredation%20test%202_zpsnbd0aetl.jpg
Edited by chew* - 4/26/17 at 10:50am
post #1097 of 1994

1.436V for 4GHz? Jesus Christ you really drew the short straw with that chip.

 

Edit: I was meaning to comment on temperatures but completely forgot to do it.

 

I did notice Gigabyte used a reasonably thick thermal pad for the heatsink - however, at around 1.35V mine stays pretty much cool to the touch. I've not put a probe on it, but what I estimate to be a 30C case-heatsink delta seems quite huge on such a low heat output device.


Edited by Artikbot - 4/26/17 at 10:59am
   
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post #1098 of 1994
3.9 lol.

That is peak voltage like fps avg matters not peak. Plus its software so....avg is 1.415 and has not budged..

Chip does 3.9 @ 1.41. And still does after extensive abuse.

Its not my only or best chip just one i have used across multiple boards so have a ton of data on it.

Using a golden chip does not stress a board properly...

Far more likely to find out what a board is made of stressing a lemon...

IR just said 45c on a light iteration....plus no elec tape so reflective.....

When im ready ill stick tape on sink and also flip board test pcb backside..

Hard ieration just hit...IR is over 52c now.....
Edited by chew* - 4/26/17 at 11:12am
post #1099 of 1994
Quote:
Originally Posted by chew* View Post

I know you read this thread gigabyte so here you go.

The shortcomings of IR3553 and not making an AM4 specific heatsink tuned and tailored to your vrm with load on r7.....

SOC sink is acceptable.......vcore vrm sink is far from acceptable.......73c with a fan over vrm peak so far...

shall I take the fan off vrm and keep testing or do you get it now?

k7%20degredation%20test%202_zpsnbd0aetl.jpg
Not bad. Anything under 80c is good and it's not like people will run P95 daily. I agree that they should have taken the time to include a better suited heatsink for AM4.
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post #1100 of 1994

Oh - misread that as 3999 :p

 

I'm not a fan of IR thermometers for heatsinks and the likes (in other words - relatively clean metals) - the emissivity isn't in line with what cheapo thermometers are calibrated for, and good ones need to be calibrated to be accurate.

 

Still - you might get a reasonable measurement depending on circumstances.

 

 

I actually have some spare PTCs, should probably test this.

   
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