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VRM on the new AM4 motherboards - Page 121

post #1201 of 2036
Nice... looks like hardly a difference from 100-120... maybe couple fps.. but hardly.. 100 for stability unless issues? haha I need ryzen to know anything
post #1202 of 2036
Well fps wise there are drawbacks...if can run gen 2 pci...break even in games gain in cpu/mem performance.

There is a happy balance to be maintained.
post #1203 of 2036
Mock taichi unboxing due to request...no thrills just opinions and facts.

https://youtu.be/8PmSPaJO10Q
post #1204 of 2036
@chew*
thanks for the taichi vid.
do you think that backplate is compatible with am4 waterblocks?
post #1205 of 2036
No clue. It just blocks caps behind socket other than that its same as all other am4 backplates.
post #1206 of 2036
Quote:
Originally Posted by chew* View Post

-snip-

 

My results with 100MHz base clock and 48:3 ratio are equal to your faster ones... I do run 14-13-13-28, but that alone shouldn't even make single digit differences.


Edited by Artikbot - 4/29/17 at 7:49am
   
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post #1207 of 2036
Quote:
Originally Posted by Artikbot View Post

My results with 100MHz base clock and 48:3 ratio are equal to your faster ones... I do run 14-13-13-28, but that alone shouldn't even make single digit differences.

Aida is pretty sensitive to clock speed...motherboard timings.

Just swapping a board can plus or minus by 1000 read or write..

My asus seems higher read/write...the giga seems to do better latency.

Keep in mind this is a general abuse OS i made for ryzen review. Its had at least 50 boards swaps driver changes.
post #1208 of 2036
Quote:
Originally Posted by Zhany View Post

@The Stilt Hoping for your input on below regarding max safe AM4 VRM temps in your opinion.
Probably should send him a PM.
Quote:
Originally Posted by chris89 View Post

It is finicky but once you find the ideal stable timings for the ram then it's golden, performance and stability is way way up there and enjoyable. Yeah the IMC is picky on AMD but it's a strong performer when the timings/ speed and modules are dialed in just right. Samsung memory seems to provide the highest stability and performance, headache free operation.

Sometimes Auto is ideal, auto timings... Compare to your modules timings but also compare with Auto timings... Auto is actually the fastest as long as the clock/ memory multi is just right.

For increasing the overclocked stability further is to turn up the voltages except the memory and the southbridge a couple ticks... This helps a lot.

The one picky thing about the ram is even know it passes a stress test or passes 5 hours of MemTest86, it could easily still be unstable for applications. That's when I found that Kingston was the issue. With Samsung everything works great. As far as I know Corsair are possibly the only manufacturer using Samsung modules, correct me if I'm wrong.
This may or may not be correct:

If Auto is faster it can be because timings were set incorrectly. If RAM timings are set incorrectly the board can revert to default spec for that timing, rather than whatever auto might provide when RAM timings are being determined at boot. I don't remember which timing it is, but people often suggest setting it lower than the math indicates for the minimum timing. The board will boot but the timing will be changed by the board to make things stable. Or, it might loosen some other timing to compensate.
post #1209 of 2036
Quote:
Originally Posted by KarathKasun View Post

The only real problem of a 3 phase board is that the power delivery will be noisier, requiring slightly higher voltages to hit the same speeds that a true 6+ phase board would need.

Also, higher voltages require more on time in the FETs. Which can massively increase temps, meaning that they absolutely respond to desired output voltage. Power is a measure of the whole FET throughput situation and is a much better way to look at real world capability than simply looking at amperage IMHO.
It seems like any board maker that will offer a board that skips the doublers and which offers feature parity with a 2013 Intel board (the hybrid air/water sink) could have a sales winner. I think my old Lynnfield board is a doubled 6 ("12 phases") and it has a quite beefy-looking sink. We're supposed to get excited about doubled 3 and 4 boards now? We can't expect anything better anymore?
post #1210 of 2036
Quote:
Originally Posted by superstition222 View Post

It seems like any board maker that will offer a board that skips the doublers and which offers feature parity with a 2013 Intel board (the hybrid air/water sink) could have a sales winner. I think my old Lynnfield board is a doubled 6 ("12 phases") and it has a quite beefy-looking sink. We're supposed to get excited about doubled 3 and 4 boards now? We can't expect anything better anymore?

The VRM is not of much importance to Ryzen according to many of the extreme overclockers.

The MSI X370 Tai-Chi has a VRM that is ludicrous considering what the CPU actually uses. It can pump out something like 480A from a doubled 6 phase setup. In actual testing under water the R7 chips have been shown to only pull around 100A at max OC and max load. With LN2 you would be extremely lucky to push over 200A.

4 phase boards have been shown to be capable of pushing R7 to 4ghz. Just let that sink in. A 4 phase board can push the top chip to within 100-200Mhz of its absolute max.
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