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VRM on the new AM4 motherboards - Page 84

post #831 of 1994
The K5 is already out in Japan: http://www.gdm.or.jp/crew/2017/0407/202567

Meanwhile still no info on availability in EU/US, im torn between just getting the X370 Prime or waiting it out and getting the K5. Man, this sucks. If the Gigabyte rep reads this and has any info on the matter, please shed some light on the situation.
post #832 of 1994
Quote:
Originally Posted by helioNz4R View Post

The K5 is already out in Japan: http://www.gdm.or.jp/crew/2017/0407/202567

Meanwhile still no info on availability in EU/US, im torn between just getting the X370 Prime or waiting it out and getting the K5. Man, this sucks. If the Gigabyte rep reads this and has any info on the matter, please shed some light on the situation.

Same layout as k3 gaming pwm.

I will go out on a limb and say we will not be impressed by whats under "the hood"
post #833 of 1994
Quote:
Originally Posted by chew* View Post

While that may be true there is no denying IR 3555 is better quality than other choices and shall we say better capacity handling than say IR 3553...

Is it better quality? In what terms?

As for power output, from a point onwards power increases are making zero difference and in most cases, the said point is pretty low.
post #834 of 1994
Quote:
Originally Posted by PsyM4n View Post

Is it better quality? In what terms?

As for power output, from a point onwards power increases are making zero difference and in most cases, the said point is pretty low.

from a power output, from a point onwards power increases make a difference so long as you bring temperatures in line. for us that actually overclock sub zero, vrm choice can make or break a record.

also higher amperage carrying capacity at same thermal limit usually indicates that they run cooler as well. which in testing, they do.
Edited by zeneffect - 4/7/17 at 10:05am
post #835 of 1994
Quote:
Originally Posted by zeneffect View Post

from a power output, from a point onwards power increases make a difference so long as you bring temperatures in line. for us that actually overclock sub zero, vrm choice can make or break a record.

also higher amperage carrying capacity at same thermal limit usually indicates that they run cooler as well. which in testing, they do.


Yeah, right. A vrm that outputs like ~700 watts, with its highest efficiency being reached at ~450 watts, with its power coming from an eps connector that is meant to give less than 350 watts, on cpus that draw like ~300 watts max at extreme cooling scenarios (ln2, phase), is actually far less useful than a weaker vrm that just happens to reach its peak at around the same point your processor reaches its limitations.

There's a reason why seemingly "stronger" vrms are less competitive than relatively "weaker" vrms in regards to overclocking records and the likes. The top spots are usually reserved for cpu/ram/mobo combinations that just happen to have properties that positively affect each other and just end up "working".
post #836 of 1994
Sometimes amperage capability > watts.

Not always the case thus the "sometimes"

Zens biostar gt7 has proven its worth in overclockability thus far however...especially on 1700x which i suspect is AMD's dumping grounds for crappy r7's 90w chips.
Edited by chew* - 4/7/17 at 10:48am
post #837 of 1994
Quote:
Originally Posted by chew* View Post

Sometimes amperage capability > watts.

Not always the case thus the "sometimes"

Yeah, when the vrm tdp is too high for the cooling system or when the amperage is specified for different voltage, etc.

There are too many variables. A very powerful vrm is no better than a very weak vrm in pro o/c scenarios. What you want is balance... that is different for each processor.

Essentially, you want both a "golden chip" processor and a board that just happens to peak at the same relative point as the processor, so that you can pull those few mhz that make the difference.
post #838 of 1994
Quote:
Originally Posted by PsyM4n View Post

Yeah, when the vrm tdp is too high for the cooling system or when the amperage is specified for different voltage, etc.

There are too many variables. A very powerful vrm is no better than a very weak vrm in pro o/c scenarios. What you want is balance... that is different for each processor.

Essentially, you want both a "golden chip" processor and a board that just happens to peak at the same relative point as the processor, so that you can pull those few mhz that make the difference.

Absolutely.

Even on air with same hardware combos just swapping boards i am seeing vast differences.

One could say that one board may have better electrical properties suited towards my cpu and memory versus another board.

Perfect example is my taichi. Memory/imc wise its killer. Cpu oc wise i have not pinned down my issue yet.

Still looking into it and need to swap backplate....weird backplate can not check socket voltage....its blocked.
Edited by chew* - 4/7/17 at 11:02am
post #839 of 1994
Quote:
Originally Posted by chew* View Post

Absolutely.

Even on air with same hardware combos just swapping boards i am seeing vast differences.

One could say that one board may have better electrical properties suited towards my cpu and memory versus another board.

Yeah. That's why you see boards performing better with cpu lines of different properties (tdp, voltage range, cores, etc) while performing worse if any of the above properties change.
At the same time, other boards that previously had worse results, do better when any of these properties change.
post #840 of 1994
I went ahead and ordered a MSI B350M Mortar. I'll be ordering a Ryzen 5 in the next few weeks (probably the 1600X).

Here's some shots of the VRM's:




And the whole board:



To my surpirse, the main VRM heatsink is attached by phillips-head screws... Being a budget board, I half expected push-pins. If there is is interest in those VRM chips, I could always take a pic of those.
Gaming Rig
(14 items)
 
HTPC
(14 items)
 
 
CPUMotherboardGraphicsRAM
RyZen 5 1600X MSI B350M Mortar Arctic Sapphire R9 290 Corsair LPX 
Hard DriveCoolingCoolingOS
samsung 840 Thermalright True Spirit 140 Power Arctic Twin Turbo II & Gelid VRM enhancement ki... Win 10 64 bit 
MonitorKeyboardPowerCase
Asus VG248QE Logitech K360 SeaSonic 860xp2 Phantom 630 
Mouse
Corsair M90 
CPUMotherboardGraphicsRAM
Athlon 5350 Asrock AM1H-ITX IGP: AMD R3 Crucial Value 
Hard DriveHard DriveOSMonitor
Sansung 840 WD30EFRX Win 7 64 bit LG 50LB670V-ZA 
KeyboardCaseMouse
Rapoo E9070 Wireless Ultra Slim keyboard Corsair 250D Logitech G602 
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Gaming Rig
(14 items)
 
HTPC
(14 items)
 
 
CPUMotherboardGraphicsRAM
RyZen 5 1600X MSI B350M Mortar Arctic Sapphire R9 290 Corsair LPX 
Hard DriveCoolingCoolingOS
samsung 840 Thermalright True Spirit 140 Power Arctic Twin Turbo II & Gelid VRM enhancement ki... Win 10 64 bit 
MonitorKeyboardPowerCase
Asus VG248QE Logitech K360 SeaSonic 860xp2 Phantom 630 
Mouse
Corsair M90 
CPUMotherboardGraphicsRAM
Athlon 5350 Asrock AM1H-ITX IGP: AMD R3 Crucial Value 
Hard DriveHard DriveOSMonitor
Sansung 840 WD30EFRX Win 7 64 bit LG 50LB670V-ZA 
KeyboardCaseMouse
Rapoo E9070 Wireless Ultra Slim keyboard Corsair 250D Logitech G602 
  hide details  
Reply
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