Speculation on Ryzen Overclocking

[unseenmorbidity]

I bought the asus x370 prime pro. Am I screwed from good VRM cooling?

How many phases does it have?

EDIT:
Ohh It's back on newegg.. They must have gotten more or something.

Looks like 10. 8 + 1 +1 Maybe?!

 

[Magic Hate Ball]

Just a question, I'm not big into extreme OC, but do people attach heatsinks to their VRMs ever to assist with heat dissipation?

They all look nekked.

 

[Andrei.]

Just a question, I'm not big into extreme OC, but do people attach heatsinks to their VRMs ever to assist with heat dissipation?

They all look nekked.

The VRMs have heatsinks on them. The stuff you see are inductors, they don't need that much cooling.

 

[unseenmorbidity]

I believe there are watercooling kits for motherboards, but I don't recall anyone seriously recommending them.

 

[french toast]

Canard PC are reporting nearly 6ghz single core.
That being said, would having 2-4 cores clocked high and 4-6 cores clocked at base or lower be the best bet for ryzen?

https://mobile.twitter.com/CPCHardware/status/834712031248908289

 

[richierich1212]

Canard PC are reporting nearly 6ghz single core.
That being said, would having 2-4 cores clocked high and 4-6 cores clocked at base or lower be the best bet for ryzen?

https://mobile.twitter.com/CPCHardware/status/834712031248908289

Lol @juangra though

 

[french toast]

Lol @juangra though

bless his cotton socks

 

[IEC]

Canard PC are reporting nearly 6ghz single core.
That being said, would having 2-4 cores clocked high and 4-6 cores clocked at base or lower be the best bet for ryzen?

https://mobile.twitter.com/CPCHardware/status/834712031248908289

So... what you are saying is I need extreme VRMs and extreme power delivery.

Looks like the ASUS Crosshair VI Hero has 12 phases + extra 4-pin CPU.

Maybe I can actually give my eVGA 1200W Platinum a workout...

 

[The Stilt]

How many phases does it have?

EDIT:
Ohh It's back on newegg.. They must have gotten more or something.

Looks like 10. 8 + 1 +1 Maybe?!

Most likely a 8+2 phase configuration (doubled 4+1 phase).
With the recent controller families from IR (ultra high frequency capable) there is nothing wrong with doubling, as long as it is done properly and the components are otherwise high quality.
ASUS generally uses proper hardware (and high quality components) to perform the phase doubling, unlike the certain other ODMs.

Crosshair 6 Hero has a doubled 4+2 phase VRM, made with the best quality components available. It can sustain 185A at 100°C or 248A @ 60°C.

ASRock X370 Taichi has a doubled 6+2 phase VRM. No idea of the quality of the PCB, the fets or how the doubling is actually done. These are always a question mark on ASRock boards.

 

[french toast]

So... what you are saying is I need extreme VRMs and extreme power delivery.

Looks like the ASUS Crosshair VI Hero has 12 phases + extra 4-pin CPU.

Maybe I can actually give my eVGA 1200W Platinum a workout...

Yea it seems so, Ryzen doesn't seem to hit a stop sign quite like some past uarchs, it just demands extreme power and voltages above a certain point, as well as very good good cooling, average motherboards might not be great for >4/4.2ghz (we will see on reviews).
Yea your PSU will get to stretch it's biceps that's for sure.

 

[IEC]

Most likely a 8+2 phase configuration (doubled 4+1 phase).
With the recent controller families from IR (ultra high frequency capable) there is nothing wrong with doubling, as long as it is done properly and the components are otherwise high quality.
ASUS generally uses proper hardware (and high quality components) to perform the phase doubling, unlike the certain other ODMs.

Crosshair 6 Hero has a doubled 4+2 phase VRM, made with the best quality components available. It can sustain 185A at 100°C or 248A @ 60°C.

ASRock X370 Taichi has a doubled 6+2 phase VRM. No idea of the quality of the PCB, the fets or how the doubling is actually done. These are always a question mark on ASRock boards.

Good to know! I had no idea what components were used on the C6H other than it being "12" phases. Knowing that it can provide 248A @ 60C means I will be happy with the results, most likely...

 

[french toast]

As rock Taichi supports higher frequency ram I think?

 

[lopri]

Does anyone know what is under the big "shield" on these motherboards?

 

[formulav8]

Lol @juangra though

Haha, who is that dude? He work for Intel or something? He is always ragging on AMD.

 

[AdamK47]

My speculation is that there are going to be people claiming total system stability at high clock speeds with just a couple of runs of SuperPI.

 

[french toast]

Haha, who is that dude? He work for Intel or something? He is always ragging on AMD.

He is a tech forum Hero

 

[CHADBOGA]

Haha, who is that dude? He work for Intel or something? He is always ragging on AMD.

He is an Internet Strongman and one of the greatest minds to ever offer commentary on semi-conductors.

We would be blessed if he would start posting on Anandtech forums.

 

[Face2Face]

I hope we're not back to the days of putting a Antec spot fan or case fan over our Mobo's VRM when overclocking...

 

[Grooveriding]

I understand hardly any of the nuances of the underlying mechanisms of mobos. I do know VRM cooling is an issue with Intel HEDT chips. They get really hot with overclocking.

I was under the impression that this has to do with total power consumption of the CPU though, not related to actual core count ? The TDP rating of these Ryzen chips is lower than Intel HEDT, so I would wonder why there would be so much concern over VRMs and overclocking, unless power consumption skyrockets with extra voltage ?

 

[formulav8]

Don't know much about this site, but says something about the 1700 non X hitting over 4ghz on all cores with decent cooling and such.

Pretty sure it wouldn't be at its 65w tdp though

 

[lopri]

Yah. The boards look rather simple and sparsely populated, which should be a plus for both the manufacturers and the users. I just want to know what is under the "south bridge" plate on these boards.

 

[PPB]

Why is there so much doubling going on in vrm designs for AM4? 8 phase VRM are pretty common on the Intel side (at least 8 and 9 series mobos)

 

[IEC]

I hope we're not back to the days of putting a Antec spot fan or case fan over our Mobo's VRM when overclocking...

Just one fan?

Peasant.

I understand hardly any of the nuances of the underlying mechanisms of mobos. I do know VRM cooling is an issue with Intel HEDT chips. They get really hot with overclocking.

I was under the impression that this has to do with total power consumption of the CPU though, not related to actual core count ? The TDP rating of these Ryzen chips is lower than Intel HEDT, so I would wonder why there would be so much concern over VRMs and overclocking, unless power consumption skyrockets with extra voltage ?

You're starting at 95W TDP. Once you add frequency (~linear increase) and voltage (exponential increase), you could easily go past 200W with a hefty all-core OC. Meaning VRMs need to be beefy (as they appear to be on the Crosshair VI Hero).

 

[IEC]

Looks like I missed the little detail about the Crosshair VI Hero being AM3 mount compatible. I suppose that means if I get lazy or my custom loop water cooling parts get delayed in the postal system I can always slap my Swiftech H220 on there for preliminary evaluation.

 

[.vodka]

Well... this motherboard sure is expensive and won't break a sweat with high clocked 8 cores, but that is VERY convenient.

I wouldn't have to mod/drill 8 holes in my mounting kit for my heatsink...