FluffyZack
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Hello all,
I somewhat understand the idea of Phases. So basically the higher the phase the better overclocking? Also what exactly is a phase itself?
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XrayMan
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Re: 6 Phase and 12 Phase PCBs?
2014/10/17 14:25:54
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Moving to General Hardware.
My Affiliate Code: 8WEQVXMCJL Associate Code: VHKH33QN4W77V6A   
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FluffyZack
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Re: 6 Phase and 12 Phase PCBs?
2014/10/17 14:35:23
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Sorry XrayMan. My bad. Didn't realize I was on 900 Series.
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dave851
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Re: 6 Phase and 12 Phase PCBs?
2014/10/17 15:04:45
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Power phases on a pcb are like rails on a power supply. Generally speaking, more phases means that more/cleaner power can be delivered to a component such as a cpu/gpu die. Having more power then you need is normally a good thing because most of the time if you push whatever components that supply you power(not talking about point of failure, this will happen sooner) the ripple/noise tends to increase, reducing stability of whatever its powering. With less ripple/noise the parts will be more stable, hence why they have the potential to overclock higher(still silicon lottery).
Just as a note, more phases isn't 100% of the time better. Most of the time it is, but not always. I would rather have 6 phases with high quality parts then 8 phases with the cheapest parts around. There is also a point where additional phases won't help anymore. There is only so much power you can pump into things before they blow. If a part is capable of reaching a certain overclock and needs say 500 watts to do so, there will not really be a difference between having 850 watts or 1000 watts available because the chip can't physically reach speeds that will stress the power phases enough to justify adding more phases. In the end unless you are bench marking and using something beyond water cooling, pretty much all manufactures will include enough power phases that you will hit the limit of what your chip can do in your setup before you run into lack of phase problems.
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Sajin
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Re: 6 Phase and 12 Phase PCBs?
2014/10/17 15:20:31
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dave851
Power phases on a pcb are like rails on a power supply. Generally speaking, more phases means that more/cleaner power can be delivered to a component such as a cpu/gpu die. Having more power then you need is normally a good thing because most of the time if you push whatever components that supply you power(not talking about point of failure, this will happen sooner) the ripple/noise tends to increase, reducing stability of whatever its powering. With less ripple/noise the parts will be more stable, hence why they have the potential to overclock higher(still silicon lottery).
Just as a note, more phases isn't 100% of the time better. Most of the time it is, but not always. I would rather have 6 phases with high quality parts then 8 phases with the cheapest parts around. There is also a point where additional phases won't help anymore. There is only so much power you can pump into things before they blow. If a part is capable of reaching a certain overclock and needs say 500 watts to do so, there will not really be a difference between having 850 watts or 1000 watts available because the chip can't physically reach speeds that will stress the power phases enough to justify adding more phases. In the end unless you are bench marking and using something beyond water cooling, pretty much all manufactures will include enough power phases that you will hit the limit of what your chip can do in your setup before you run into lack of phase problems.
+1
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FluffyZack
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Re: 6 Phase and 12 Phase PCBs?
2014/10/17 17:58:05
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Thank you so much Dave :D
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RainStryke
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Re: 6 Phase and 12 Phase PCBs?
2014/10/18 20:07:45
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Yeah, to add onto what Dave said... Some companies use a phase doubler to make it look like they have more power phases than the competition, when in reality, the competition is just as good with half the phases.
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jcw777
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Re: 6 Phase and 12 Phase PCBs?
2014/10/19 01:58:13
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RainStryke
Yeah, to add onto what Dave said... Some companies use a phase doubler to make it look like they have more power phases than the competition, when in reality, the competition is just as good with half the phases.
As......cough*....rock Sry something in my throat.
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RainStryke
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Re: 6 Phase and 12 Phase PCBs?
2014/10/19 13:23:53
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Here is some more information on phases: http://www.hardwaresecret...egulator-Circuit/616/4 Here is good info on what a doubler is: Doubler: We will talk about the doubler a little as they are commonly used today in the phase wars. They basically are like a multiplexer which takes a single PWM signal and divides that signal into two, however it also reduces the maximum switching frequency by half. There are also some quadrouplers, these are interesting as I have only seen one which is in production(IR3599) and it takes a single input and basically divides it into 4 by dividing into 2 twice, and you get an output which is ¼ the switching frequency of the input. Nowadays we see single doubler chips, or we see them integrated into the driver, however in the past sometimes motherboard makers used analog switches, which would take in 4 PWM signals and output 8. The only place you see this done now is with some X58/Z77/Z68 MSI motherboards. Source: http://sinhardware.com/in...-articles/82-vrm-guide *EDIT* ahh see what you did there lol
post edited by RainStryke - 2014/10/19 15:56:30
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ty_ger07
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Re: 6 Phase and 12 Phase PCBs?
2014/10/22 06:43:39
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A doubler is good from the standpoint that it increases the max wattage capabilities and reduces chances of coil whine (as long as they don't skimp on the components after they double them). Sure, it's not a full-hearted approach; but it can still be an improvement.
post edited by ty_ger07 - 2014/10/22 06:54:30
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