Should You Undervolt Your CPU?

We tried a mild automatic overclock last week and this week we are going to try to see how far we can go with undervolting. Then we will see how well it performs. Will undervolting lower the CPU temperature and power usage and give more performance while doing it?

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#Overclocking #Undervolting #Tech

[rhoadeswr]

I want to go ahead and let everyone know, newer ASUS gaming MB’s default CPU settings in BIOS will absolutely fry an intel CPU. At least that was the case for my 14900kf. I built a new Gaming PC for my nephew and could not get core’s 4, 5, and 7 to stay under 100C when testing on cinebench. Instead of undervolting, I had to go into ASUS Bios and turn down the default limitations ASUS had them set to. Instantly booted up and now running at the low 70’s on cinebench. No undervolting necessary and my performance score improved significantly. Feel free to message me for the info or if you want to make a video on that I would love to share this information.

[DevilbyMoonlight]

Thanks for posting this one is definitely a pearl of wisdom worth bookmarking to check back with for future reference, undervolting and slightly downclocking can also give you extra performance as if done right the CPU will never thermal or power throttle, for team red it looks a lot less work than using throttle-stop to get the absolute best out of the intels.... for example I had an 8750h that had a truly massive undervolt on the core - 325mV but only got -125mV on the cache, a cpu which used to throttle at around 105c would stay at around 74c even playing Star Citizen for hours! it was worth running it 200mhZ below max clock to save its life through the last hot summer lol... all I need to do now seek out a tool that I can trust and will work with AMD 7xxx series laptop cpus..

[raynugen]

By FAR the best most lucid explanation of this crazy BIOS era. i jus upgraded from a 8350 to 9950 and couldnt really wrap my head around it all until THIS video. Subscribed

[lexwaldez]

stumbled on this video and it's absolute gold - thank you very much
it's great having resources out there like this to learn from

[hawlerying]

Just thank you !! Very informative very easy to follow perfect guide !!

[soushi]

So.. do I have to run the amd ryzen software every time my pc turns on and apply my undervolt settings? Isn’t there a way that those setting apply automatically?

[viperrcr]

Thank you so much for this video. I have been very curious about undervolting and this made it very easy to understand. Can't wait to try this on my 5950X! I will have to check out undervolting the GPU video too for my RTX 3090!

[MikkoRantalainen]

26:00 I think the single most important result of undervolting the CPU is to improve 0.1 % low fps. At least for me, the stutter from 1 % or 0.1 % low is the thing I notice more than a couple of more fps in average.

[BullyChamp]

Hi, I thought I would try to do the same as you, but it doesn't work.
Inside i profile 1, you press manual.. I don't have that option.
Probably because of new version :/

[OFFGRID_Trucker]

My Ryzen 9 5950x on a B550, 128gb ddr5 is down 20w and 10 degrees so far.. Probably could have taken it down further.. but dropped it to: peak core: .953741 and CPU lost 38w. That's some good savings. Now I'll see what difference it made to my nicehash mining. Rebooted and CPU is doing great. Getting 14.0772KH/s Love this CPU. Paid $900 used, but it's always been an awesome workhorse.

[TheGumpyGump]

I'm trying this now on my Ryzen 5 5600x, and every time I click Apply & Test, my PC restarts and comes back with no overclocks when I reopen Ryzen Master. I have no idea what I'm doing wrong. It's frustrating. Edited to add that Ryzen Master never actually runs the test either. It just reboots my PC, and if I reopen RM when I'm all rebooted, it will tell me if the profile was unstable.

[Elnenezxr]

Every time I hit apply and test it restart my computer but i get no image
I have to turn off my computer by holding the power button for 10 seconds so I can see image.
Am I doing something wrong?

[MikkoRantalainen]

I think you should put your fans at 100% during this process if you want to compare the temperatures because otherwise you're just looking at the output of your fan curve. Look at the power wattage to figure out the real benefits because that defines the effective fan speed you have to achieve in long run.

High quality air cooler can continuously take abot 140–170 W depending on your room temperature and case design so if you undervolt your system to stay below 100 W any high quality air cooler will easily make it.

[MandM_IMO]

Thank you for the video but this is a bad app or a glitch. it restart the PC each time I click apply and test. Not sure why your installation does not ask you...

[vikferreira]

Hi, tying out Ryzen Master 1st try, however my menu does not show me the option for MANUL for overclocking. I did disable Precision boost, set to Disabled. wonding if the latest version eliminates this option ? what is the version you used ?

[MikkoRantalainen]

28:40 The drop in 0.1% low is so huge in this game that it would have probably warranted another test. The problem with 0.1 % lows is that if your OS does anything stupid in the background, it could totally void your testing. In practice, repeating the test multiple times and using median or lowest value would represent the real performance. Max and average values will be affected by the OS being stupid.

And if you want to redece random jitter from the OS, you have to tweak the OS instead of undervolting the CPU.

[Kemical_Head]

I have a 7600x3d and Ryzen Master does not give me the "Manual" option as seen in yours. I assume this is because it is hard locked at a 4.75Ghz max boost, which sucks, because not only can you not overclock from RM, you cannot undervolt either. However, turning the internal GPU off not only reduced temps and wattage, but I have actually seen it now boosting above the 4.75Ghz max boost.

[Chilledoutredhead]

Thats such a neat software, kicks the ass out of bios tweaking and 3rd party stress testing

[NonLegitNation]

so what is the difference between this and using the PBO Curve Optimizer? Is this more stable? The problem I had with the PBO Curve Optimizer (manually in my BIOS and then later using Ryzen Master) and my R9 5900x was that I was getting random reboots when my system was at idle. It worked fine at full load but once it hit idle and those voltages were at their absolute minimum that is when my system became unstable. I actually gave up on using the Curve Optimizer because I couldn't find ANY negative offsets that were stable when my system was at idle. I just bought a R9 5950x today and I was planning on trying the PBO Curve Optimizer but if undervolting this way is more stable then I think I'm going to give this a try instead.

[hubnasty]

I just upgraded cpu from a ryzen 5 5600x to a ryzen 7 5700x3d. Now ryzen master boots up but will not let me undervolt or overclock. Ant advance would be much appreciated. Thanks