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Author Topic: MSI B350 Tomahawk Arctic bios/oc issues-questions  (Read 632 times)

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nikoskarozisTopic starter

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Hello,

I am using the latest bios for MSI Tomahawk B350 and running optimized default values. I get a nice all core boost to 3.2 Ghz and single core boost to 3.75 Ghz, while using Ryzen balance power plan. Also when cores idle they drop below 3.0ghz a nice power saving feature.
This Kind of behavior suits my needs atm and the core performance boost is a nice feature to have.


The problem is that voltage is all around the place fluctuating too much. When starting windows, cpu voltage reported at HWinfo64 as well as HWmonitor shows 1.55V for at least 30 secs and then starts to fluctuate between 1.090V and 1.4125.

I tried to workaround this issue by doing the following but failed:

-Disabled Core performance boost:  all cores went to 3.0GHz and when idling they drop below that value (which is nice) but loose the Single Core Boost to 3.75Ghz. Voltages are stable and really good.

- Set from bios CPU Frequency to 3.1GHz: I get all core constant boost to 3.1 GHz which doesn’t drop when core idles and also loose Single Core Boost at 3.75Gz. Voltages are stable and really good.
(Core Performance Boost is on Auto and Cool n Quite Enabled)


-I also I OCed cpu Frequency to 3.7GHz(from bios) leaving everything on auto. Cores are always sitting at 3.7GHz and don’t drop when idle ofc I dont care about Single core boost in this situation.
Voltages and temps are looking really good also. I get a reading of 1.2v Max Vcore.

-OCed all cores with Ryzen Master program to 3.1GHz and 3.3GHz for testing. Cores correctly clock down when idle. No single core boost. After restart all values reset (can't hold the settings).

So it seems that when I set things manually voltages are stable and really good but I loose single core boost and also the energy saving features such as Ghz drop when cores idle. Would you say it all is immature bios problem etc ?
Ryzen master seems to work... but then again not quite...

Any ideas, thoughts, suggestions, corrections would be appreciated. Thank you.

Build: CPU       AMD Ryzen 1700
          Mobo    MSI Tomahawk Arctic B350
          Ram      16GB Patriot Viper Elite 3000Mhz (running atm at 2133Mhz)
          OS         Windows 10 pro 64bit , Power Plan: AMD Ryzen Balanced
          GPU       Asus hd5450
          Bios v.   7A34vH3
« Last Edit: 15-May-17, 06:05:15 by nikoskarozis »
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yazamir

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« Reply #1 on: 15-May-17, 10:24:34 »

I propose to find a voltage for stable operation at a frequency of 3.8 GHz (presumably 1.25 volts) and forget about energy-saving technologies.
All the same, there is no other meaning than marketing.
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nikoskarozisTopic starter

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« Reply #2 on: 15-May-17, 12:50:54 »

It is a good proposition. But i really like the feature that clocks down on idle cores. Bit less energy consumption and heat.

But not much of a difference nonetheless you say?

There is also the issue that a lot of people that are using default values on their bios are not aware that they get that vcore voltages 1.55v and that bad fluctuation that exceeds even 1.40v at times. Which is really a very bad thing and may destroy the chip at some point. A better tuning is definitely needed by msi here.

A new bios released today 7A34vH4 but neither of the above issues was addressed. Unless is considered okay for the chip to go at 1.55v and chip features not to work properly.
« Last Edit: 15-May-17, 21:23:03 by nikoskarozis »
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darkhawk

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« Reply #3 on: 15-May-17, 14:38:42 »

Most sites seem to agree that around 1.45V is the maximum voltage for daily usage while overclocking.
Keep in mind, that will be the voltage all the time, 1.45V.

I don't think small spurts of 1.55V is necessarily bad if it keeps things stable. But if you are worried about it, then manually set the voltage to something between 1.35 and 1.4V.
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System #1 :
MSI Z97 SLI Plus
Intel i7 4770k @ 4.5 GHz @ 1.28VCore
16 GB DDR3 @ 2400 MHz
480 GB Intel DC S3500
2TB WD Black Edition
2TB Seagate HDD
MSI GTX1080 Armor Edition
Asus Xonar XTX

System #2 :
MSI B350 Gaming Plus
Ryzen 5 1500 X (stock speeds for now)
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
320 GB Seagate HDD
MSI R9 280X

System #3 : 
MSI Z270 Tomahawk Arctic
Intel i5 7400T
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
2TB Seagate HDD

nikoskarozisTopic starter

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« Reply #4 on: 15-May-17, 19:00:06 »

Hi, thank you for your reply

I have manually set the CPU voltage but when Core Performance Boost is on AUTO, doesn’t do any difference. If that worked would be great because I would get all core boost 3.2GHz and single core boost to 3.75Ghz on nice stable voltage.
Although you maybe correct about voltages I am not in a position to judge how a 1.55v for a duration of 30+secs affects the cpu each time windows boot. Officially AMD stated safe max voltage 1.35v.

Except from that there are also questions such as why clocks don't down-clock when idle although the feature is enabled on bios. Why when ocing from master ryzen software down-clocking works but after restart looses settings.

So pretty much either I am doing something wrong or maybe need to wait for better bios or something else?

Thanks again all for your replies and help.
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darkhawk

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« Reply #5 on: 15-May-17, 19:42:39 »

Ryzen Master doesn't make changes to the BIOS, it makes changes to the currently running settings.

As far as the voltage, I know that AMD has stated 1.4V is OK for a 24/7 overclock.
Others have found 1.45V is OK. It depends on the CPU and what it requires for an overclock under load.
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System #1 :
MSI Z97 SLI Plus
Intel i7 4770k @ 4.5 GHz @ 1.28VCore
16 GB DDR3 @ 2400 MHz
480 GB Intel DC S3500
2TB WD Black Edition
2TB Seagate HDD
MSI GTX1080 Armor Edition
Asus Xonar XTX

System #2 :
MSI B350 Gaming Plus
Ryzen 5 1500 X (stock speeds for now)
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
320 GB Seagate HDD
MSI R9 280X

System #3 : 
MSI Z270 Tomahawk Arctic
Intel i5 7400T
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
2TB Seagate HDD

nikoskarozisTopic starter

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« Reply #6 on: 15-May-17, 20:50:11 »

Appreciate the replies thank you. If any new information show up about these issues let me know in this thread. Especially the downclocking core when idle I can't seem to make it work when I OC

Just to clarify a bit on max safe voltages we have two statements from AMD one near launch of r7 processors stating 1.35v and one by Robert Hallock working at AMD stating 1.425v.

Maybe others find some use in that information along with the above posts discussing voltage
« Last Edit: 16-May-17, 04:35:45 by nikoskarozis »
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nikoskarozisTopic starter

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« Reply #7 on: 17-May-17, 20:55:42 »

Hi,
 after more careful examination of the volts in my system wanted to clarify some things.

The VID voltage being reported in HWInfo64 is the value the CPU desires or should I say, what it believes it's set to. It is not a reliable source to check your Vcore.
The Vcore reading is the actual voltage the cpu is receiving and is a reliable reading.

The 1.55v I mention above concerns the VID voltage. So in general the voltages I get with Core performance boost are okay with some spikes at 1.4v when idling.
Also after contacting msi they informed me that this is a normal behavior.

Thanks again just wanted to pass this info for others to see if were confused as I was

ps: now to the question why cores do not down clock when idle after OCing?
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darkhawk

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« Reply #8 on: 17-May-17, 22:18:01 »

VID is the voltage being fed to the voltage regulator that then feeds the CPU.

You want that to be a bit higher than the max VCore that you'll be using. Usually somewhere in the realm of 1.55 to 1.8V in some situations is where it's best.....But you want this to be about 0.1 to 0.3V above your max vcore.
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System #1 :
MSI Z97 SLI Plus
Intel i7 4770k @ 4.5 GHz @ 1.28VCore
16 GB DDR3 @ 2400 MHz
480 GB Intel DC S3500
2TB WD Black Edition
2TB Seagate HDD
MSI GTX1080 Armor Edition
Asus Xonar XTX

System #2 :
MSI B350 Gaming Plus
Ryzen 5 1500 X (stock speeds for now)
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
320 GB Seagate HDD
MSI R9 280X

System #3 : 
MSI Z270 Tomahawk Arctic
Intel i5 7400T
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
2TB Seagate HDD

nikoskarozisTopic starter

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« Reply #9 on: 19-May-17, 17:53:25 »

Hi, a small update

I went into Ryzen Balanced power plan and entered the advanced power settings. There i changed Minimum Processor State from 90%(default value) to 50%. After doing that everything works as intended and frequency fluctuates (downclocks when idle).
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darkhawk

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« Reply #10 on: 19-May-17, 19:38:40 »

Ah, yeah, that would do it. 

Now that you mention that....I'll have to do the same. It really should downclock when in an idle state. Using up all that power is stupid (figures, AMD....).
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System #1 :
MSI Z97 SLI Plus
Intel i7 4770k @ 4.5 GHz @ 1.28VCore
16 GB DDR3 @ 2400 MHz
480 GB Intel DC S3500
2TB WD Black Edition
2TB Seagate HDD
MSI GTX1080 Armor Edition
Asus Xonar XTX

System #2 :
MSI B350 Gaming Plus
Ryzen 5 1500 X (stock speeds for now)
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
320 GB Seagate HDD
MSI R9 280X

System #3 : 
MSI Z270 Tomahawk Arctic
Intel i5 7400T
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
2TB Seagate HDD

ste_xrysos

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« Reply #11 on: 26-May-17, 13:24:39 »

Hi, a small update

I went into Ryzen Balanced power plan and entered the advanced power settings. There i changed Minimum Processor State from 90%(default value) to 50%. After doing that everything works as intended and frequency fluctuates (downclocks when idle).
Check this thread.
https://forum-en.msi.com/index.php?topic=286972.0
« Last Edit: 26-May-17, 22:34:22 by ste_xrysos »
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darkhawk

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« Reply #12 on: 26-May-17, 14:01:49 »

Εγω ξες τι θεμα εχω? Οτι αν βαλω Manual Voltage μεσα στο Bios τοτε δεν πεφτει σε Idle το Voltage και τρεχει συνεχως οτι και να κανω στην τιμη που του εδωσα. Τα Clocks δουλευουν κανονικα και πεφτουν 1500Mhz σε Idle...και ανεβαινουν κανονικα οπως τα εχω ρυθμισει σε Load. Απογοητευση σκετη. Δεν νομιζω πως ειναι normal αυτο...δεν επρεπε να ειναι ετσι. Αμα βαλω το Voltage Auto Ομως πεφτουν κανονικα σε Idle. Αλλα το θεμα ειναι πως οτι OC και να κανω στον CPU(π.χ 3.9Ghz) και αφησω το Voltage στο Auto(ωστε να πεφτουν τα ρευματα σε Idle) μου βγαζει παντα 1.20 ή 1.240-1.248V...το οποιο ειναι πολυ λιγο και δεν ειναι stable για 3.6-3.7Ghz και πανω. Κατι δεν παει καλα.
https://forum-en.msi.com/index.php?topic=286972.0

This is an english forum. See : >>Please read and comply with the Forum Rules.<<
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System #1 :
MSI Z97 SLI Plus
Intel i7 4770k @ 4.5 GHz @ 1.28VCore
16 GB DDR3 @ 2400 MHz
480 GB Intel DC S3500
2TB WD Black Edition
2TB Seagate HDD
MSI GTX1080 Armor Edition
Asus Xonar XTX

System #2 :
MSI B350 Gaming Plus
Ryzen 5 1500 X (stock speeds for now)
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
320 GB Seagate HDD
MSI R9 280X

System #3 : 
MSI Z270 Tomahawk Arctic
Intel i5 7400T
16 GB DDR4 @ 2400 MHz (Adata memory)
128 GB PNY SSD
2TB Seagate HDD
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