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5800X3D Undervolting ?

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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 :)
 
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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.
 
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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
 

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No need to baby it, just run it
 
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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.
 
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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''
 

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Mine wasn't stable at -30, -28 all core was ok though :)
 
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I could find scenarios in which WPrime , OCCT and that likes fail if I'd want to.
 
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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.
 
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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.
 
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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?
 

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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.
 
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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.
 
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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 ?
 
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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.
 

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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 :toast:
 
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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 :)
 
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System Name schweinestalle1 and schweinestalle 2
Processor AMD Ryzen 7 5700X3D / AMD Ryzen 3200G
Motherboard Asus Prime - Pro X570 + Asus PCI -E AC68 Adapter / Asus Prime B450 M-K
Cooling AMD Wraith Prism / AMD Wraith
Memory Kingston HyperX 2 x 16 gb DDR 4 3200mhz / Kingston HyperX 2x 8Gb DDR 3200mhz
Video Card(s) AMD Radeon RX 7800 XT 16GB Pulse / AMD Reference Vega 64 8GB
Storage Crucial 1TB M.2 SSD and WD Blue 500gb Nand SSD / WD Blue 240gb M.2 SSD
Display(s) Asus XG 32 V ROG and LG ultra gear 32gs75q / TCL TV
Case Corsair AIR ATX / Corsair Air Mini ATX
Audio Device(s) Realtech standard / Realtech standard
Power Supply Corsair 850 Modular / Corsair 750 Modular
Mouse CM Havoc / Microsoft Wireless
Keyboard Corsair Cherry Mechanical / Razor piece of shit
Software Win 10 / win 10
Benchmark Scores Soon ! whateva
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 :confused:
"thermal compound" | Jaycar Australia
 

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Joined
Nov 2, 2020
Messages
1,550 (0.99/day)
Location
Tel Fyr
System Name Purple Haze | Vacuum Box
Processor AMD Ryzen 7 5800X3D (-30 CO) | Intel® Xeon® E3-1241 v3
Motherboard MSI B450 Tomahawk Max | Gigabyte GA-Z87X-UD5H
Cooling Dark Rock 4 Pro, P14, P12, T30 case fans | 212 Evo & P12 PWM PST x2, Arctic P14 & P12 case fans
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Mouse Logitech G305, Bloody A91, Amazon basics, Logitech M187
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Software W10LTSC 21H2, PBO2, FF, MusicBee, mpv, ImageGlass, OpenRGB, FanControl, Greenshot, DS4Win, Signal
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.
 
Joined
Jun 18, 2015
Messages
412 (0.12/day)
Location
Perth , West Australia
System Name schweinestalle1 and schweinestalle 2
Processor AMD Ryzen 7 5700X3D / AMD Ryzen 3200G
Motherboard Asus Prime - Pro X570 + Asus PCI -E AC68 Adapter / Asus Prime B450 M-K
Cooling AMD Wraith Prism / AMD Wraith
Memory Kingston HyperX 2 x 16 gb DDR 4 3200mhz / Kingston HyperX 2x 8Gb DDR 3200mhz
Video Card(s) AMD Radeon RX 7800 XT 16GB Pulse / AMD Reference Vega 64 8GB
Storage Crucial 1TB M.2 SSD and WD Blue 500gb Nand SSD / WD Blue 240gb M.2 SSD
Display(s) Asus XG 32 V ROG and LG ultra gear 32gs75q / TCL TV
Case Corsair AIR ATX / Corsair Air Mini ATX
Audio Device(s) Realtech standard / Realtech standard
Power Supply Corsair 850 Modular / Corsair 750 Modular
Mouse CM Havoc / Microsoft Wireless
Keyboard Corsair Cherry Mechanical / Razor piece of shit
Software Win 10 / win 10
Benchmark Scores Soon ! whateva
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 ! :)
 
Joined
Feb 15, 2024
Messages
240 (0.65/day)
Location
Bulgaria
System Name Mid-Range
Processor Ryzen 7 5800X3D
Motherboard ASUS TUF Gaming B550 Plus WiFi II
Cooling AiO LS 520 White edition(MX-6 thermal paste applied)
Memory 2x16GB DDR4 3600Mhz CL18 Corsair Vengeance RGB PRO SL
Video Card(s) RX 7700 XT ASRock Steel Legend 12GB
Storage Kingston FURY Renegade 2TB /TeamGroup Cardea A440 1TB
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Case NZXT H6 Flow ARGB + 2x140mm Lian Li Uni infinity mirror
Audio Device(s) RGB Kogaion Speakers/Naraka bladepoint MR720 headset
Power Supply EVGA Supernova G2 650Watts 80 plus Gold
Mouse A4 Tech Bloody Naraka W95 MAX
Keyboard A4 Tech Bloody Naraka S98 Mechanical
VR HMD no
Software Windows 10 Home SL
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
 
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