ASRock.com Homepage
Forum Home Forum Home > Technical Support > AMD Motherboards
  New Posts New Posts RSS Feed - Max safe voltage for Ryzen CPU's?
  FAQ FAQ  Forum Search Search  Events   Register Register  Login Login

Max safe voltage for Ryzen CPU's?

 Post Reply Post Reply Page  12>
Author
Message Reverse Sort Order
VUMeter View Drop Down
Newbie
Newbie


Joined: 14 Sep 2017
Location: UK
Status: Offline
Points: 148
Post Options Post Options   Thanks (0) Thanks(0)   Quote VUMeter Quote  Post ReplyReply Direct Link To This Post Topic: Max safe voltage for Ryzen CPU's?
    Posted: 21 Jul 2018 at 5:39am
I confess, I am not really answering your question...

I would rather go for guaranteed stability and long term life.  How much time would setting every core to 4.0 GHz make over the normal 3.6 XFR (?) GHz on a 1800X?

There is a certain amount of obtaining a very high overclock, really just for the sake of bragging rights.  Ultimately, in use I really doubt it makes much difference at all.
If some video took 30mins to render and instead took 27 minutes to render, really does that 3 minutes become noticeable?
To me, those 3 minutes are lost in the overall time of the task not being done in 3 minutes but neat half an hour.  I'd be out of the room, doing something else and would probably come back a few minutes after it had finished anyway.

Again, I appreciate I am doing what tends to anger me on the internet, not answering the question, but instead questioning the OP's reason why they ask the question.

So, as far as I have read there seems to be indication that for constant running 1.35v vCore (on chip vCore not motherboard reported?) is the upper limit for safe and long term use.  However, if the voltage goes up and down and core clock goes up and down, there seems to be indication that really up to about 1.45v vCore temporarily is OK.
Certainly, normal use XFR on a 2 core load up to 3.9GHz with stock settings on my 1700x tends to want to tap on 1.4+ volts, but is closer to 1.3v when all cores are loaded up to 3.5GHz.

I guess you could contact AMD directly and ask for clarification.  They seemed quite approachable when I contacted them some while back.
X370 TaiChi | 1700X P3.10 stock clocks | (2x 16GB) 32GB FlareX 2400MHz.
Back to Top
gizmic View Drop Down
Groupie
Groupie
Avatar

Joined: 13 Jun 2018
Location: Hong Kong
Status: Offline
Points: 677
Post Options Post Options   Thanks (0) Thanks(0)   Quote gizmic Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jul 2018 at 11:06am
my auto defaults are in that area except for the ram 
Back to Top
noxinthebox View Drop Down
Newbie
Newbie


Joined: 20 Jul 2018
Status: Offline
Points: 8
Post Options Post Options   Thanks (0) Thanks(0)   Quote noxinthebox Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jul 2018 at 6:42am
I got my ryzen 7 1700 to 4.0 with a 1.44375v at max temp runs at 71c which is perfectly fine in my opinion. It's pretty stable but can't push any higher without getting into a boot loop.
Back to Top
Erasmus_Tycho View Drop Down
Newbie
Newbie
Avatar

Joined: 20 Jan 2018
Location: Phoenix, AZ
Status: Offline
Points: 85
Post Options Post Options   Thanks (0) Thanks(0)   Quote Erasmus_Tycho Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jul 2018 at 6:04am
Originally posted by Reinvented Reinvented wrote:

Originally posted by Erasmus_Tycho Erasmus_Tycho wrote:

Originally posted by cx5 cx5 wrote:

@Erasmus

Look again, this gives me bravery to go higher everywhere else. https://www.tomshardware.com/reviews/overclocking-amd-ryzen,5011-2.html

Most shockingly 1.9V Ram for ambient cooling.

And 1.3v soc

I'm especially convinced after bios upgrade to 4.7 where soc only shows red warning at 1.55v

But disclaimer as usual, if it dies, burnt and explode I take no responsibility.

Good luck.

Have you had luck with a higher SoC voltage?  I haven't increased mine from 1.1v.

That's generally bad advice.  SoC voltage is usually for higher memory clocks/IMC control.  If you are after 24/7 stability, find your maximum overclock, and back down slightly till it's stable without a voltage wall.  Those values that he gave you are very very wrong, and should not be used for 24/7 usage.  You are simply at the chips limit. 

I wasn't planning on it, those numbers looked like they were for LN2 overclocking.
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
Back to Top
Reinvented View Drop Down
Newbie
Newbie


Joined: 22 Jun 2017
Status: Offline
Points: 113
Post Options Post Options   Thanks (0) Thanks(0)   Quote Reinvented Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jul 2018 at 4:59am
Originally posted by Erasmus_Tycho Erasmus_Tycho wrote:

Originally posted by cx5 cx5 wrote:

@Erasmus

Look again, this gives me bravery to go higher everywhere else. https://www.tomshardware.com/reviews/overclocking-amd-ryzen,5011-2.html

Most shockingly 1.9V Ram for ambient cooling.

And 1.3v soc

I'm especially convinced after bios upgrade to 4.7 where soc only shows red warning at 1.55v

But disclaimer as usual, if it dies, burnt and explode I take no responsibility.

Good luck.

Have you had luck with a higher SoC voltage?  I haven't increased mine from 1.1v.

That's generally bad advice.  SoC voltage is usually for higher memory clocks/IMC control.  If you are after 24/7 stability, find your maximum overclock, and back down slightly till it's stable without a voltage wall.  Those values that he gave you are very very wrong, and should not be used for 24/7 usage.  You are simply at the chips limit. 
Back to Top
Erasmus_Tycho View Drop Down
Newbie
Newbie
Avatar

Joined: 20 Jan 2018
Location: Phoenix, AZ
Status: Offline
Points: 85
Post Options Post Options   Thanks (0) Thanks(0)   Quote Erasmus_Tycho Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jul 2018 at 1:22am
Originally posted by cx5 cx5 wrote:

@Erasmus

Look again, this gives me bravery to go higher everywhere else. https://www.tomshardware.com/reviews/overclocking-amd-ryzen,5011-2.html

Most shockingly 1.9V Ram for ambient cooling.

And 1.3v soc

I'm especially convinced after bios upgrade to 4.7 where soc only shows red warning at 1.55v

But disclaimer as usual, if it dies, burnt and explode I take no responsibility.

Good luck.

Have you had luck with a higher SoC voltage?  I haven't increased mine from 1.1v.
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
Back to Top
cx5 View Drop Down
Senior Member
Senior Member


Joined: 15 Sep 2017
Location: Hong Kong
Status: Offline
Points: 2383
Post Options Post Options   Thanks (0) Thanks(0)   Quote cx5 Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2018 at 8:30pm
@Erasmus

Look again, this gives me bravery to go higher everywhere else. https://www.tomshardware.com/reviews/overclocking-amd-ryzen,5011-2.html

Most shockingly 1.9V Ram for ambient cooling.

And 1.3v soc

I'm especially convinced after bios upgrade to 4.7 where soc only shows red warning at 1.55v

But disclaimer as usual, if it dies, burnt and explode I take no responsibility.

Good luck.
x370taichi@3.50gen4
AX750 Optane900P SN770
3800x PosdonZro4 BarrowPWM-17w>420x140x28
XFX SWFT319 6900XT
MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz
Back to Top
Erasmus_Tycho View Drop Down
Newbie
Newbie
Avatar

Joined: 20 Jan 2018
Location: Phoenix, AZ
Status: Offline
Points: 85
Post Options Post Options   Thanks (0) Thanks(0)   Quote Erasmus_Tycho Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2018 at 4:08pm
Originally posted by Reinvented Reinvented wrote:

Originally posted by Erasmus_Tycho Erasmus_Tycho wrote:

Well, I feel like I lost the silicon lottery.  I have been trying to get my 1800x to get through a sustained run of Prime95 at 4ghz, and still haven't been able to even at 1.425v.  For reference, I can run 3.9ghz at 1.35v (P-states with vcore offset at 0.00 - auto) with 8+ hours of Prime95.

Cooling isn't a problem here, at the highest temps in Prime95 at 1.425v, it tops out at 76c, but ONLY on the harshest calculations with cinebench runs topping out in high 60's.  

I'm cool with my daily setup running at 3.9ghz @ 1.35v (core performance boost enabled up to 4ghz) afterall, it is suuuch a small performance boost it only translates to a 20-30 point increase in cinebench. I'm just chasing benchmarks really at this point and it seems the highest scores require at least 4ghz with the highest scores up to 4.1.  

I guess the reason for this post is, I can't seem to find a straight answer on the subject of what voltages I should limit myself to, even on a temporary timeframe.  I've seen 1.35 all the way up to 1.5... 

That's what we call in overclocking a voltage wall.  If there's a significant jump in voltage required for a small MHz increase, then the chip is at it's limit.  And AMD has stated that with Ryzen 1st Generation, the max voltage that should be used is 1.425v, and no more than 1.2v SoC voltage. 

Kinda what I thought unfortunately.  Going to skip the 2xxx series and wait for Ryzen 2. This 1800x is still a pretty solid chip.
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
Back to Top
Reinvented View Drop Down
Newbie
Newbie


Joined: 22 Jun 2017
Status: Offline
Points: 113
Post Options Post Options   Thanks (0) Thanks(0)   Quote Reinvented Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2018 at 11:53am
Originally posted by Erasmus_Tycho Erasmus_Tycho wrote:

Well, I feel like I lost the silicon lottery.  I have been trying to get my 1800x to get through a sustained run of Prime95 at 4ghz, and still haven't been able to even at 1.425v.  For reference, I can run 3.9ghz at 1.35v (P-states with vcore offset at 0.00 - auto) with 8+ hours of Prime95.

Cooling isn't a problem here, at the highest temps in Prime95 at 1.425v, it tops out at 76c, but ONLY on the harshest calculations with cinebench runs topping out in high 60's.  

I'm cool with my daily setup running at 3.9ghz @ 1.35v (core performance boost enabled up to 4ghz) afterall, it is suuuch a small performance boost it only translates to a 20-30 point increase in cinebench. I'm just chasing benchmarks really at this point and it seems the highest scores require at least 4ghz with the highest scores up to 4.1.  

I guess the reason for this post is, I can't seem to find a straight answer on the subject of what voltages I should limit myself to, even on a temporary timeframe.  I've seen 1.35 all the way up to 1.5... 

That's what we call in overclocking a voltage wall.  If there's a significant jump in voltage required for a small MHz increase, then the chip is at it's limit.  And AMD has stated that with Ryzen 1st Generation, the max voltage that should be used is 1.425v, and no more than 1.2v SoC voltage. 
Back to Top
gizmic View Drop Down
Groupie
Groupie
Avatar

Joined: 13 Jun 2018
Location: Hong Kong
Status: Offline
Points: 677
Post Options Post Options   Thanks (0) Thanks(0)   Quote gizmic Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2018 at 10:52am
There is no straight answer 
if the voltage requirement to run 4.1ghz needs way more than 4.0ghz then the extra heat is not worth it.

better tune the system elsewhere to get a higher score.
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.04
Copyright ©2001-2021 Web Wiz Ltd.

This page was generated in 0.141 seconds.