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Depends on cpu and what kind of overclock you want.

 

For gpu, it doesnt matter.

For cpu, heatsinked vrm, many good chokes. For AMD cpu you need more, because it requires more power when overclocked. 

Anything over a 8 phase VRM is pretty much overkill if it's well designed.

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According to JJ from Asus, it's mostly marketing fluff for things most people don't really need for the uber tier boards. If you find a board that supports your CPU and has the number of PCI-E x16 lanes you need for your build, that's all you need. 

 

 

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Anything over a 8 phase VRM is pretty much overkill if it's well designed.

not for amd cpus, its not overkill. gigabyte has best amd am3+ boards, 970 for very cheap, and its much better to buy it over other manufacturers if you are buying 8 core proc

 

for intel, yes 8 chokes is fine, and even high end boards like asus rog latest haswell refresh havent got that many chokes, but they are good ones.

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not for amd cpus, its not overkill. gigabyte has best amd am3+ boards, 970 for very cheap, and its much better to buy it over other manufacturers if you are buying 8 core proc

 

for intel, yes 8 chokes is fine, and even high end boards like asus rog latest haswell refresh havent got that many chokes, but they are good ones.

A lot of 970 and 99X boards only have a 8+2 design and run fine with a 9590 granted not as good as 8+4 990FX boards but it really is quality over quantity, there's no need for a 16 phase VRM unless your doing some crazy overclocking with liquid nitrogen.

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not for amd cpus, its not overkill. gigabyte has best amd am3+ boards, 970 for very cheap, and its much better to buy it over other manufacturers if you are buying 8 core proc

 

for intel, yes 8 chokes is fine, and even high end boards like asus rog latest haswell refresh havent got that many chokes, but they are good ones.

 

I have buyed MB AM3+ 970 Asus M5A97 R2.0

And i think that i should buyd 

MB AM3+ 970 Gigabyte GA-970A-DS3P

 

so did i made mistake

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A lot of 970 and 99X boards only have a 8+2 design and run fine with a 9590 granted not as good as 8+4 990FX boards but it really is quality over quantity, there's no need for a 16 phase VRM unless your doing some crazy overclocking with liquid nitrogen.

16 phase vr doesnt even exist for cpu's, 8 phase is the max. And 970 boards with a 8 phase design is rather BS, doublers all over the place doubling the fun and doing nothing. Every manufacturer lies about the true pwm phase count their boards has and thats why you have a vrm list like this discovering the lies: http://www.sinhardware.com/images/vrmlist.png

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I have buyed MB AM3+ 970 Asus M5A97 R2.0

And i think that i should buyd 

MB AM3+ 970 Gigabyte GA-970A-DS3P

 

so did i made mistake

 

no man that asus board is better, you bought the right board :). i was talking about 970 ud3 and ud3p specifically

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16 phase vr doesnt even exist for cpu's, 8 phase is the max. And 970 boards with a 8 phase design is rather BS, doublers all over the place doubling the fun and doing nothing. Every manufacturer lies about the true pwm phase count their boards has and thats why you have a vrm list like this discovering the lies: http://www.sinhardware.com/images/vrmlist.png

wow nice ! will save this site.

got one for amd platforms ?

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wow nice ! will save this site.

got one for amd platforms ?

Ofc not. He's the only one doing this. You might as well check his video's out, he kinda explained everything about VR and the lies behind manufacturers. https://www.youtube.com/user/sin0822/videos

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Ofc not. He's the only one doing this. You might as well check his video's out, he kinda explained everything about VR and the lies behind manufacturers. https://www.youtube.com/user/sin0822/videos

thanks man, do you know any of topics in LTT discussing this or should i search for it? 

 

thanks for help

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16 phase vr doesnt even exist for cpu's, 8 phase is the max. And 970 boards with a 8 phase design is rather BS, doublers all over the place doubling the fun and doing nothing. Every manufacturer lies about the true pwm phase count their boards has and thats why you have a vrm list like this discovering the lies: http://www.sinhardware.com/images/vrmlist.png

The Gigabyte  Z77X-UP7 has a 32+3+2 VRM and plenty of manufactures have 16 phase VRMs so yeah....

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thanks man, do you know any of topics in LTT discussing this or should i search for it? 

 

thanks for help

Closest you can get to get an idea is; google the board, filter it on biggest size, look if there are any black things called ISL or IR (IR is usually with a dot in a corner). Google the spreadsheet of it, it might say '4 phase' and if you see the board advertized as a 8+2 phase design (physical choke count = marketing count) then you know you are dealing with a 4 phase design since it used doublers to achieve using 8 chokes.

The 990fxa ud3 advertized as a 8+2 design, lets leave that +2 out.

http://i.imgur.com/E7AXQaN.jpg

http://www.intersil.com/en/products/power-management/switching-controllers/multiphase-controllers/ISL6329.html

Spec says 6 phase operation, and you can't go from 6 to 8 phase at all with doublers makes it just a 4 phase. Stuff like the z87 mpower max has a 8 phase vrm design, 3 phases are disabled and uses a special doubler that brings it to 20 physical phase. The most expensive mpower has all phases enabled and has a 32 physical count. So this method isn't always accurate at all. You kinda need some more understanding of pcb's/VR to figure out how many true phases there are, thats what sin does.

 

 

The Gigabyte  Z77X-UP7 has a 32+3+2 VRM and plenty of manufactures have 16 phase VRMs so yeah....

No. There's one 10 phase pwm chip which isn't VDR12.5 certified yet. Seems like you have no understanding at all about VR. They are going from 8 to 32 with doublers and doublers are useless besides spreading the heat load to cool it easier down that's all. Some outdated pwm chips can only supply a single voltage with a single phase, a doubler splits a single pwm phase in two allowing you to supply two voltages instead of 1. Doubles the fun but does nothing special. All you need are true pwm phases which reduces the ripple current significantly down.

The z77x-up5-th doesnt have doublers, has the same exact VR. Both are true 8 phases, nothing more.

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No. There's one 10 phase pwm chip which isn't VDR12.5 certified yet. Seems like you have no understanding at all about VR. They are going from 8 to 32 with doublers and doublers are useless besides spreading the heat load to cool it easier down that's all. Some outdated pwm chips can only supply a single voltage with a single phase, a doubler splits a single pwm phase in two allowing you to supply two voltages instead of 1. Doubles the fun but does nothing special. All you need are true pwm phases which reduces the ripple current significantly down.

The z77x-up5-th doesnt have doublers, has the same exact VR. Both are true 8 phases, nothing more.

 

 

I just realized this a two minutes ago, I haven't slept in like 34-ish hours so excuse my jackassness. :D

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I just realized this a two minutes ago, I haven't slept in like 34-ish hours so excuse my jackassness. :D

lol, report back when you start tripping balls xD

 

 

-snip-

btw, if you overvolt, you have much stronger ripple right?

 

Or if you downvolt a xeon 1230v3 or locked i5, on some cheapass 4 phase board, that makes it less damaging because smaller ripple right?

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btw, if you overvolt, you have much stronger ripple right?

 

Or if you downvolt a xeon 1230v3 or locked i5, on some cheapass 4 phase board, that makes it less damaging because smaller ripple right?

A higher load is usually more ripple, lower load lower ripple. Btw most modern pwm's have OCP, OTP, OVP plenty of safety protections just like psu's do. Also the pwm is filtering the voltage extremely precisely to whats needed, a cable reports to the pwm a certain voltage like 1.48V then the regulator will add 0.02V

 

 

Or if you downvolt a xeon 1230v3 or locked i5, on some cheapass 4 phase board, that makes it less damaging because smaller ripple right?

 

VR's are far more precise than power supplies :P Lets say the stock vcore is 1.30V and lets complety forget about vdroop, the cpu received anything lets say between 1.28 - 1.33V. First moment the cable to the pwm reported 1.28V, the modulator adds 0.02V then apparently its at 1.33V then it says reduce it by 0.03V etc etc. Some pwm's are a joke in that under extreme load thats when your safety protection things kick in either downclocking the cpu or rebooting or perhaps shutting the pc down.

If you use digital pwm's, they have algorithms to predict this ripple which gives us a bunch more precision. The answer for your question is; in the end it's the lower vcore that "made the cpu live longer" not the ripple. VR's should be within Intel's specifications or they have to be blacklisted. Intel doesnt really have any specifications for extreme ln2 overclocking, that's obvious :P

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