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My experience with the Asus PRIME X370-Pro - Page 46

post #451 of 735
Supposedly MSI is releasing a new BIOS in April 11
Quote:
Originally Posted by Tinkula View Post

Hello,

Just got my hands on this board and updated BIOS to latest version. Memory is working like charm at 3200MHz CL15 at 1.0V SOC. Seems Ryzen really does like Samsung B-die.
There's couple of things that are puzzling me at the moment though:

1. When an application fully loads your CPU to 100% (especially apps that use AVX like Linpack) I start getting short freezes, typically under a second but sometimes even several seconds. It looks like the system hangs but if you wait for a few seconds it continues as if nothing happened. There's also audio clicks and pops when system is fully loaded. Are you guys experiencing the same issue?

2. Load line calibration seems very weird. If I set manual voltage with manual CPU load line calibration (tried level 1 and 2), system hangs before I can reach windows and then goes to crash loop before I can even turn it back to Auto in BIOS. I have to remove power cable and after that the system does about 5 boot attemps and then reverts back to default setting saying overclock failed. I read that setting SOC load line calibration helps, but I couldn't get around the issue even with that. With load line calibration set on auto the voltages seem to jump quite a lot. Again, are you guys experiencing the same issue?

Are you monitoring the min/max volts in HWinfo? under idle/load? what do they show?

Forget AI suite's voltage readout. The AI suite metering is all over the place right now. If you set the fans to "fixed" you'll see why.

Here at 4Ghz if I get a voltage inferior to 1.306 at full load the system crashes. I'm using 1.35V Vcore now and LLC3 (which gives you a vdroop of 1.326 or thereabouts) therefore stable.

If your system crashes and won't post automatically (happened once here) turn off the PSU and wait till the MOBO LEDs are off, takes about 10s, then turn the PSU back. You don't need to pull the cable.

I don't get freezes, at least not in Cinebench 15, maybe that specific benchmark causes it.
post #452 of 735
Quote:
Originally Posted by crakej View Post

Offset mode allows your voltage to drop when cores not being used (I think)

what is your dram voltage? should be 1.35
also, VTTDDR needs to be half of your ram voltage - 0.675 - which the bios does not set correctly for some reason.

Yeah logically speaking offset mode should be the same as Auto with an added voltage bonus on top. However that doesn't seem to be the case. Under Auto my voltages drop to around 1.05V on Auto but with 0.0V offset they hover around 1.2V. Also with Auto the voltage swings are anywhere from 1.0V to 1.3V while with 0.0V offset they are from 1.18V to 1.23V.

My dram voltage is 1.35V. I haven't checked VTTDDR, it's whatever the board sets it at stock. Only thing I've done to RAM is turn on the DOCP profile and dropped SOC voltage from 1.1 to 1.025V. It passes all error tests and I did overnight linpack test also.

The short freezes at full load are what's really bothering me. I'm often doing heavy calculations in the background while multitasking other things, and even if i set the process priority to lowest possible, the system gets really clunky with cracks and pops in audio. When you have 16 threads it shouldn't be possible to load all cores to the point where mouse won't move for several seconds, especially when the process hogging the resources has lowest possible priority.
post #453 of 735
Quote:
Originally Posted by SaccoSVD View Post

Are you monitoring the min/max volts in HWinfo? under idle/load? what do they show?

Here at 4Ghz if I get a voltage inferior to 1.306 at full load the system crashes. I'm using 1.35V Vcore now and LLC3 (which gives you a vdroop of 1.326 or thereabouts) therefore stable.

I don't get freezes, at least not in Cinebench 15, maybe that specific benchmark causes it.

Yeah I'm monitoring HWinfo volts. Unfortunately I haven't been able to get into OS with manual voltage even once because I don't know how far the different LLC levels push. Manual 1.3V with LLC2 @ stock speed doesn't even POST, which is very weird in my opinion. I think i'll try tomorrow with your settings. Higher levels of LLC gives more voltage under load, right? Asking because on MSI boards I saw a graph that suggested it was backwards on them with more power at lower LLC.

And yeah I do get freezes even in Cinebench r15, there can be ~4 second freeze in the middle but the test still finishes with normal score. However Cinebench is a rather fast test and the effect is way more noticeable with OCCT for example. It really seems like the test pushes the CPU to the point where it's unable to even update the screen before it gets a breather. I wonder if it's because of the Ryzen balanced power plan. I'll test tomorrow with high performance mode as well.
post #454 of 735
At what clockspeed you wanna run your 1700x?

I would be lucky to run it at 3.9Ghz with that voltage.

Here LLC is behaving reasonably with a 1.35V Vcore at 4Ghz as I mentioned. But will never work at 1.3V, even less with LLC at 2 or 1

Here I could only work with LLC1 but with an uncomfortable Vcore of 1.367V (vdroop 1.306V)
post #455 of 735
Quote:
Higher levels of LLC gives more voltage under load, right?

wrong smile.gif if you think it will go from 1.3V to 1.35V or so.

Higher LLCs give you less Vdroop at load in exchange for a bigger (and potentially dangerous) current spike when transitioning from load to idle. Only Extreme LLC (aka LLC Level 5) will give you more vcore as you push the CPU, this one is a NONO!

Try 1.35V and LLC3, see how your CPU will be 1.35V at idle and around 1.325 at load. Which is optimal. Try that and see. Those are perfectly safe voltages, 1.43V or more starts to degrade it.
Edited by SaccoSVD - 4/30/17 at 3:45pm
post #456 of 735
Quote:
Originally Posted by chrisjames61 View Post

Are old school AMD stock coolers like the original Wraith cooler compatible with this board? Is socket pressure an issue?
All CPU coolers that use retaining clip, all the way back to AM2 socket fit and pressure doesn't seem to be any different. Right now I have cooler from FX 8350 on it.
post #457 of 735
Yeah I phrased my question poorly, but basically higher LLC level = less VDroop = more danger of accidentally getting too high voltages.

I was aiming for 3.7GHz with the stock cooler until I get mounting kit for my old cooler and that's how I noticed the oddities with LLC. I tried dropping back to stock clocks (3000MHz I believe) which the CPU normally does at around 1.05V at 100% load to see how different LLC levels behave. I really don't understand how 1.3V at LLC2 isn't even stable enough to get to BIOS. Unless my mobo/CPU is busted it must be a bug in the current BIOS build. Probably a bug, because both work fine on stock voltages.

I did some additional testing and the freezing at max load might be a memory issue after all. It's weird because it happens when everything is at stock settings. Maybe it's another bug...
post #458 of 735
Quote:
Originally Posted by Tinkula View Post

Yeah I phrased my question poorly, but basically higher LLC level = less VDroop = more danger of accidentally getting too high voltages.

I was aiming for 3.7GHz with the stock cooler until I get mounting kit for my old cooler and that's how I noticed the oddities with LLC. I tried dropping back to stock clocks (3000MHz I believe) which the CPU normally does at around 1.05V at 100% load to see how different LLC levels behave. I really don't understand how 1.3V at LLC2 isn't even stable enough to get to BIOS. Unless my mobo/CPU is busted it must be a bug in the current BIOS build. Probably a bug, because both work fine on stock voltages.

I did some additional testing and the freezing at max load might be a memory issue after all. It's weird because it happens when everything is at stock settings. Maybe it's another bug...

I meant to say your problem sounds like memory to me - not cpu. When you're OCing, only do one at a time, cpu - then ram, then both together.

What are your Ram settings and voltages? And your VTTDDR volts?

If your ram is at 1.35v make sure VTTDDR is set to 0.675.

If that doesn't work, try selecting a slower ram speed and see if you get stability then.
Amiga10
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Amiga10
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Samsung SM961 NVME SanDisk Ultra II Hitachi HDS5C3020ALA632 MasterCooler MasterLiquid 120 
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post #459 of 735
It seems the freezing issue at full load is RAM related. Dropping timings to 16-16-16-38 had significant impact on the stuttering and it's gone now.
Also thanks for the tip for increasing VTTDDR, seems it was 0.6V! RAM works really well now at 3200. Maybe I can try dropping the timings a bit with a future BIOS.
post #460 of 735
Quote:
Originally Posted by Tinkula View Post

It seems the freezing issue at full load is RAM related. Dropping timings to 16-16-16-38 had significant impact on the stuttering and it's gone now.
Also thanks for the tip for increasing VTTDDR, seems it was 0.6V! RAM works really well now at 3200. Maybe I can try dropping the timings a bit with a future BIOS.

The VTTDDR thing is a bug on this board. Glad you got it working better - you should run Prime95 for a while -- usually memory errors will show up within 15-20 mins, if that. I would have thought you could bring that 38 down a bit in ram timings, though not sure it will make a noticeable difference.
Amiga10
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R7 1700X ASUS X370 Prime XFX Raadeon RX 580 8GB Black Edition Corsair Vengeance CMK16GX4M2B32000C16 2 X 8GB 
Hard DriveHard DriveHard DriveCooling
Samsung SM961 NVME SanDisk Ultra II Hitachi HDS5C3020ALA632 MasterCooler MasterLiquid 120 
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Windows 10 Creators Ed Acer CB241HQK Acer CB241HQK No brand cheap gaming! 
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Corsair RM 850 AeroCool 500 HP Wireless Mouse 
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Amiga10
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CPUMotherboardGraphicsRAM
R7 1700X ASUS X370 Prime XFX Raadeon RX 580 8GB Black Edition Corsair Vengeance CMK16GX4M2B32000C16 2 X 8GB 
Hard DriveHard DriveHard DriveCooling
Samsung SM961 NVME SanDisk Ultra II Hitachi HDS5C3020ALA632 MasterCooler MasterLiquid 120 
OSMonitorMonitorKeyboard
Windows 10 Creators Ed Acer CB241HQK Acer CB241HQK No brand cheap gaming! 
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Corsair RM 850 AeroCool 500 HP Wireless Mouse 
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