5800X3D Undervolting ?

[hermesa]

ryzen 5800x3d with curve optimizator from -30mv to -0mv. I used CPU-z stress test on the stressing test ver 17.01.64 and 19.01.64(beta ver) and AVX2 19.01.64 (beta) here are the results measured with HWinfo64 , which one should I go for or should I undervolt at all ?

-0mv
AVX2 - PPT 104.445W 4.38Ghz 67.8C
VER BETA - PPT 98.400W 4.38Ghz 64.8C
VER - PPT 101.900W 4.39Ghz 66.4

-10mv
AVX2 - PPT 101.300-103.00W 4.42Ghz 69.1C
VER BETA - PPT 95.500W 4.41Ghz 63.6C
VER - PPT 98.700W 4.42Ghz 65.8C


-15mv
AVX2 - PPT 96.500W 4.42Ghz 64C
VER BETA -PPT 90.400 4.41ghz 61C
VER - PPT 94.800W 4.42Ghz 64.6C

-20mv
AVX2- PPT 91.100w 4.42Ghz 61C
VER BETA - PPT 85.200-86.200 W 4.42Ghz (forgot to measure temp)
VER - PPT 88.900W -89.000W 4.42Ghz (forgot to measure temp)

-25mv
AVX2- PPT 90.500W 4.42Ghz 61.8C
VER BETA - PPT 85.700W 4.41Ghz 60C
VER - PPT 89.700W 4.42Ghz 62.2C


-30mv
AVX2- PPT 85.300W 4.42Ghz 58.1C
VER BETA- PPT 80.300W 4.41Ghz 55.3C
VER - PPT 83.350W 4.42Ghz 57C
сс
This is only for refference,I don't have time and nerves to test in all the stress test utilities But in the end I want to increase the lifespan of the chip without risking damaging it on the other hand with undervolting or something like that(neither underperforming) since it's bought second hand and God knows what's been done to this CPU so my point is to preserve it and use it with peace of mind

ryzen 5800x3d with curve optimizator from -30mv to -0mv. I used CPU-z stress test on the stressing test ver 17.01.64 and 19.01.64(beta ver) and AVX2 19.01.64 (beta) here are the results measured with HWinfo64 , which one should I go for or should I undervolt at all ?

-0mv
AVX2 - PPT 104.445W 4.38Ghz 67.8C
VER BETA - PPT 98.400W 4.38Ghz 64.8C
VER - PPT 101.900W 4.39Ghz 66.4

-10mv
AVX2 - PPT 101.300-103.00W 4.42Ghz 69.1C
VER BETA - PPT 95.500W 4.41Ghz 63.6C
VER - PPT 98.700W 4.42Ghz 65.8C


-15mv
AVX2 - PPT 96.500W 4.42Ghz 64C
VER BETA -PPT 90.400 4.41ghz 61C
VER - PPT 94.800W 4.42Ghz 64.6C

-20mv
AVX2- PPT 91.100w 4.42Ghz 61C
VER BETA - PPT 85.200-86.200 W 4.42Ghz (forgot to measure temp)
VER - PPT 88.900W -89.000W 4.42Ghz (forgot to measure temp)

-25mv
AVX2- PPT 90.500W 4.42Ghz 61.8C
VER BETA - PPT 85.700W 4.41Ghz 60C
VER - PPT 89.700W 4.42Ghz 62.2C


-30mv
AVX2- PPT 85.300W 4.42Ghz 58.1C
VER BETA- PPT 80.300W 4.41Ghz 55.3C
VER - PPT 83.350W 4.42Ghz 57C
сс
This is only for refference,I don't have time and nerves to test in all the stress test utilities,the bigger difference is only in OCCT max temperature but as far as I know OCCT is extreme stress test enviroment which is not the same as gaming .But in the end I want to increase the lifespan of the chip without risking damaging it on the other hand with undervolting or something like that(neither underperforming) since it's bought second hand and God knows what's been done to this CPU so my point is to preserve it and use it with peace of mind

 

[HD64G]

Undervolting cannot damage the chip, it will cause instability even in light use if you apply less voltage than needed. Leave it at -30 and if you view instability go for -25, -20m etc. In a week or so you will know your CPU's quality.

 

[hermesa]

Undervolting cannot damage the chip, it will cause instability even in light use if you apply less voltage than needed. Leave it at -30 and if you view instability go for -25, -20m etc. In a week or so you will know your CPU's quality.

It was working with -30mv for days since purchase , never noticed any issues.But in any case I configured it now at -15. I don't want to OCCT it for hours to check it's stability since it tends to reach 80C and no one knows the 3dv cache and the tear that it has been done to it already before I bought it as a second hand

 

[freeagent]

No need to baby it, just run it

 

[Veseleil]

There's absolutely no damn reason to run anything but -30CO if it doesn't show any signs of instability. Mine runs like that since the first day.
The temps speak for themselves, and telling you what is the best without any doubt.

I want to increase the lifespan of the chip without risking damaging it on the other hand with undervolting or something like that(neither underperforming)

As @HD64G already said, undervolting can't damage the chip, but just introduce instability. Undervolting can only prolong the lifespan of the chip BTW. I didn't notice that having -30CO caused any performance loss neither.
So please stop searching for problems when there aren't any, and enjoy your CPU being cool as it can get, thanks to a brilliant software called PBO2 Tuner.

Also, I'm sharing this .bat file example:

start "whatever" "full path to your\PBO2 tuner\PBO2 tuner.exe" -30 -30 -30 -30 -30 -30 -30 -30

So it's easy to add it to your startup folder, and forget about it.

 

[hermesa]

There's absolutely no damn reason to run anything but -30CO if it doesn't show any signs of instability. Mine runs like that since the first day.
The temps speak for themselves, and telling you what is the best without any doubt.

As @HD64G already said, undervolting can't damage the chip, but just introduce instability. Undervolting can only prolong the lifespan of the chip BTW. I didn't notice that having -30CO caused any performance loss neither.
So please stop searching for problems when there aren't any, and enjoy your CPU being cool as it can get, thanks to a brilliant software called PBO2 Tuner.

Also, I'm sharing this .bat file example:

start "whatever" "full path to your\PBO2 tuner\PBO2 tuner.exe" -30 -30 -30 -30 -30 -30 -30 -30

So it's easy to add it to your startup folder, and forget about it.

Thanks for the advice. I don't use PBO tuner.exe's or programs, everything I do is from BIOS. PBO>CO>NEGATIVE>*number*,everything else on the CPU settings is either locked or ''Auto''

 

[freeagent]

Mine wasn't stable at -30, -28 all core was ok though

 

[dont whant to set it"']

"Plug And Play " or swap and play if upgrade* * bios update(motherboard compatibility in play in the first place).
I could find scenarios in which WPrime , OCCT and that likes fail if I'd want to.

 

[Veseleil]

Thanks for the advice. I don't use PBO tuner.exe's or programs, everything I do is from BIOS. PBO>CO>NEGATIVE>*number*,everything else on the CPU settings is either locked or ''Auto''

Many motherboards don't have that feature to begin with, because only later AGESAs introduced that option (1.2.0.8 IIRC). There are people like me that don't want to use anything past 1.2.0.6c for various reasons.
My post was meant to be an easy tweak for you and any other 5800X3D owner that bump onto this thread in the future. BTW, the program itself doesn't run any background tasks nor services. It just sets parameters that my mobo is unable to, and runs back to its lair.

 

[INSTG8R]

Thanks for the advice. I don't use PBO tuner.exe's or programs, everything I do is from BIOS. PBO>CO>NEGATIVE>*number*,everything else on the CPU settings is either locked or ''Auto''

Perfectly fine way to do it’s how I do mine(I do everything BIOS) I hate extra programs that aren’t necessary. -30 is also totally fine unless for some reason its unstable which I think is pretty unlikely.

 

[r.h.p]

sorry for being out of the loop , Im running the 5700x3d what's the actual point of under volting , would it do anything for me?

 

[INSTG8R]

sorry for being out of the loop , Im running the 5700x3d what's the actual point of under volting , would it do anything for me?

Lower temps for the most part. Less Voltage equals less heat.

 

[Veseleil]

sorry for being out of the loop , Im running the 5700x3d what's the actual point of under volting , would it do anything for me?

Point like with undervolting anything else, GPU for example. Lower temps and power consumption.

 

[r.h.p]

Lower temps for the most part. Less Voltage equals less heat.

Point like with undervolting anything else, GPU for example. Lower temps and power consumption.

But im getting 40/42 c on desktop and around 62c playing games at 1440p 180hz for example. Is that to high ?

 

[adilazimdegilx]

But im getting 40/42 c on desktop and around 62c playing games at 1440p 180hz for example. Is that to high ?

It's not high, incfact it's great. But undervolting has no downsides so there is also no reason not doing it.
5700x3D wouldnt be a good example of this but hot running CPUs like 5800x3D can also boost higher if they are in thermally limited in any way so UV can even help to get higher frequencies in that case.

 

[INSTG8R]

It's not high, incfact it's great. But undervolting has no downsides so there is also no reason not doing it.
5700x3D wouldnt be a good example of this but hot running CPUs like 5800x3D can also boost higher if they are in thermally limited in any way so UV can even help to get higher frequencies in that case.

Agree with all of this

 

[Cowboystrekk]

Just stick with -30 on both 5800X3D and 5700X3D. You save 15-20W, 10C liwer temp. If unstable just lower it a bit. You get info in event viewer ehich core failed. Just lower that one, no need to lower all. Longevity will be better and if you have poor/mediocre cooling you get more performance

 

[r.h.p]

change of topic soz to be honest i didnt change my thermal grease with my 3700x for 3 years and when i removed the cooler it was stuck, but not dry. A new clean up of my cooler including a air blast and cpu application of the same grease dropped my temps by 12c no shit! I have the suspicion this Thermal grease is the trick because im using it now with new 5700x3D and same Wraith prism cooler and getting very good temps like i said in my post, this is the stuff
i got it from a electronics store
"thermal compound" | Jaycar Australia

 

[Veseleil]

hot running CPUs like 5800x3D can also boost higher if they are in thermally limited in any way so UV can even help to get higher frequencies in that case.

Yup, I've failed to mention this equally important fact and reason more to do UV.

sorry for being out of the loop , Im running the 5700x3d what's the actual point of under volting , would it do anything for me?

Also forgot to tell that you literally have an example of a temperature differences in the OP.

 

[r.h.p]

Yup, I've failed to mention this equally important fact and reason more to do UV.


Also forgot to tell that you literally have an example of a temperature differences in the OP.

sorry bro, just got caried away with my thermal grease and temps !

 

[hermesa]

Yup, I've failed to mention this equally important fact and reason more to do UV.


Also forgot to tell that you literally have an example of a temperature differences in the OP.

Yes , It would do even more for you if you have aircooler.I have 10C difference with AiO ,imagine how much it would decrease Temp for you Depending on the load ofcourse.In OCCT I get to 10-15C decrease , in gaming from 15 to 20C . If I go from stock to -25 (I don't bother with -30 because I know it's the limit and I don't want even to test it) I am running right now on -20

 

[Melvis]

How good is the 5800X3D? ever since I undervolted -30 its kept under 80c and I have seen it clock up as high as 4.66GHz thanks to been winter here and cold AF in my room haha. But gosh it just keeps on surprising me, great chip!

 

[INSTG8R]

How good is the 5800X3D? ever since I undervolted -30 its kept under 80c and I have seen it clock up as high as 4.66GHz thanks to been winter here and cold AF in my room haha. But gosh it just keeps on surprising me, great chip!

I keep mine at -30 as well, I've only seen mine "peak" at 4.5. my Mobo(MSI) has a setting specifically for it called "Kombo Strike" which supposedly helps it with MT situations. Unfortuneately the latest BIOS update borked it. It took me awhile to make the connection but basically on wasn't allowing it to boost at all.. The gains were pretty minor so no huge loss but breaking regular boost is kinda a big deal...

 

[Melvis]

I keep mine at -30 as well, I've only seen mine "peak" at 4.5. my Mobo(MSI) has a setting specifically for it called "Kombo Strike" which supposedly helps it with MT situations. Unfortuneately the latest BIOS update borked it. It took me awhile to make the connection but basically on wasn't allowing it to boost at all.. The gains were pretty minor so no huge loss but breaking regular boost is kinda a big deal...

That sounds like a bit of a pain in the ass! but I have heard of it and mine is also on a MSI motherboard. I guess as long as your hitting the advertised 4.5 then thats ok? I was just surprised to see mine hit almost 4.7 and all i did was do the -30 offset and running on a smaller 92mm air cooler.

That been said my other PC I just put in my old 2700X replacing the 1600X and it wasnt boosting correctly at all, was static at 4GHz or less when it got hot, so I updated the chipset drivers to the latest version, put a much better cooler on it (low profile, small case) and changed the power profile in Windows and now it clocks down to 1.6GHz ( I think) and I have seen it boost around 4.450GHz, very happy! No PBO

 

[Superzuber]

have to say I was running 5600x undervolted with CO for 2 year to find out recently I have errors on 2 cores while running corecycler, but the pc was perfectly stable
so while it's not a problem it's easy to pinpoint the specific cores and up to voltage and not too much hassle since the latest corecycler can adjust the voltage and find stable settings automatically and you can work or even play games on that computer since it uses just one core at a time