Question Are These CPU Voltages Okay While Gaming?

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The Guy From The Thing

The Guy From The Thing

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May 1, 2023
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I have a Ryzen 7 5800x, I don't do overclocking or undervolting, closest things to that is obviously having DOCP enabled in Bios for the ram and Eco Mode on for the CPU. I was also messing with changing the Maximum Processor State to 99% to see how it would affect anything (which I've had on for a few weeks)

are these voltages on the SVI2 TFN and Vcore readings okay? are they too low or too high?

Elden Ring (the larger plateaus are when I was tabbed in, they ranged from 1.28v-1.4v):
https://imgur.com/a/qREbX4c
View: https://imgur.com/a/qREbX4c


Destiny 2 (again, the larger plateaus are the important ones, they mainly hovered in the 1.2v range and sometimes spiked to 1.3v):
https://imgur.com/a/XLc0JkC
View: https://imgur.com/a/XLc0JkC




so my question is: are these voltages too low or too high, or are they fine? should I be concerned in any way? I got worried because when I checked the voltages in Elden Ring last week, they seemed to be a stable 1.3v rather than doing these minor fluctuations
 
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hotaru.hino said:
If you left the CPU clock settings alone, it'll do its thing. There's nothing to worry about unless you start getting stability issues. Which those generally result in a BSOD or some other hard crash.
Click to expand...
like I said, most I've done in regard to voltage is Eco Mode and lowering the Max Processor Power to 99%. but I also wanted to bring up my C-States. I got back home and turned a youtube vid back on to grab a sample of what they look like at idle;

https://imgur.com/a/xeW4Ihz
View: https://imgur.com/a/xeW4Ihz


you can see the moment I turned everything back on, and I wanted to ask is there anything wrong with the C0 States acting like this while I'm browsing? when I'm under load, it's usually an 80/20 split between C1 and C0 which seems normal, but is this fine as well?
 
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The Guy From The Thing said:
Max Processor Power to 99%
Click to expand...
Why this?

The voltage ranges are normal for Ryzen 5000. The voltage will vary by core frequency, which will change based on cores used, temps, etc etc. Not uncommon to see ~1.4V with only a couple cores loaded as that's going to achieve max boost frequency, whereas loading up more cores will result in lower max frequency and thus lower voltage.

If you want to see more consistent values, run something that provides a consistent load, like Prime95, not a game.
 
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tennis2 said:
Why this? That's just eliminating frequency boost and reducing performance.
Click to expand...
just seeing how much of a noticeable difference it makes, seeing how much it lowers temps and voltages basically. without it, I run idle at 1.2v which is fine but I wanted to see the effects of lowering it myself

honestly, even though it does objectively hinder the cpu, I haven't noticed much of a negative difference in performance myself, but I'll turn it back to 100 soon
 
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If your goal is to reduce power consumption without losing much performance, then you're going to have to tweak with PBO curve optimizer.

If your goal is to reduce power consumption as much as possible, then you're going to have to start manually tweaking with clock speeds and voltages.

If you don't want to worry about anything, just leave it on defaults (or whatever easy mode setting you want to leave it on) and stop looking at hardware monitors if they're making you paranoid.
 
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hotaru.hino said:
If your goal is to reduce power consumption without losing much performance, then you're going to have to tweak with PBO curve optimizer.

If your goal is to reduce power consumption as much as possible, then you're going to have to start manually tweaking with clock speeds and voltages.

If you don't want to worry about anything, just leave it on defaults (or whatever easy mode setting you want to leave it on) and stop looking at hardware monitors if they're making you paranoid.
Click to expand...
I'd rather not tweak with curve optimizers and such, which is why I went for Eco Mode and the Max Processor Power instead

everything else in Bios seemed normal, although the Auto option confuses me sometimes. prime example: the VDDCR SoC Voltage was set to Auto and had a value of 1.1v in my Bios, is this the 'stock setting' for the SoC voltage in this case?
 
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hotaru.hino said:
Does this value bother you? If so why?
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not bothering me unless it's actually bad, I was just going through all the voltages to make sure I hadn't changed anything. and was wondering if that would be considered the 'Stock Setting' since it's on Auto. in HWInfo it usually reads as 1.087-1.094


only thing that caught my attention Bios was my Core Voltage, which was 1.37-1.40 the other day, and was now fluctuating from 1.40-1.44v. other than that, nothing else seemed out of the ordinary
 
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The Guy From The Thing said:
not bothering me unless it's actually bad, I was just going through all the voltages to make sure I hadn't changed anything. and was wondering if that would be considered the 'Stock Setting' since it's on Auto. in HWInfo it usually reads as 1.087-1.094


only thing that caught my attention Bios was my Core Voltage, which was 1.37-1.40 the other day, and was now fluctuating from 1.40-1.44v. other than that, nothing else seemed out of the ordinary
Click to expand...
It's normal for voltages to fluctuate. There's no real "it must be this voltage or things will be bad." Just a range of voltages that the part can work in.

Unfortunately since, as far as I know, AMD doesn't provide any public documentation on the electrical specifications, you're just going to have to nod and smile that whatever the motherboard is doing is correct.
 
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hotaru.hino said:
It's normal for voltages to fluctuate. There's no real "it must be this voltage or things will be bad." Just a range of voltages that the part can work in.

Unfortunately since, as far as I know, AMD doesn't provide any public documentation on the electrical specifications, you're just going to have to nod and smile that whatever the motherboard is doing is correct.
Click to expand...
gotcha, the reason it was a concern to see the Core Voltage fluctuating was because it was an increased number compared to what I saw previously (1.37-1.40). right now, in HWInfo it doesn't seem to drop below 0.994-1.020 but I'll check it again tomorrow after work


usually it shows readings of 0.96-1.000 I believe, but today it's just been kind of locked at 0.9-1.02 like I said
 
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hotaru.hino said:
It's normal for voltages to fluctuate. There's no real "it must be this voltage or things will be bad." Just a range of voltages that the part can work in.

Unfortunately since, as far as I know, AMD doesn't provide any public documentation on the electrical specifications, you're just going to have to nod and smile that whatever the motherboard is doing is correct.
Click to expand...
went back into the Bios for peace of mind, voltages were back doing their 1.39-1.40 routine with some dips below and some spikes above. you're right when you say they fluctuate and have a 'range'

sorry for the silly noob questions lol, thanks for your help
 
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drivinfast247 said:
I'm curious as to why "ECO mode" and "max processing power"?

Why not normal power mode with PBO off?

Why by an "x" cpu only to purposely gimp its performance?
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turning PBO off made next to no changes in my temps, so I went with Eco Mode. temp’s didn’t feel very desirable and I didn’t want to pull my cpu out or get a better cooler if my Deepcool AK500 wasn’t good enough

as with Max Processing Power, I’ve turned it off, it was only temporary
 
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TBF, PBO Curve Optimizer doesn't explicitly reduce power per se. It lowers power draw at a given frequency, but that just opens up more frequency headroom for the CPUs boost functionality to use and you wind up right back at the max/stock power draw, just at a higher frequency now.

Deepcool AK500 (when installed properly) should be plenty capable of cooling a 5800X....is that where all this is coming from?

What's your CPU temps?
What case do you have? How many fans and where?
 
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tennis2 said:
TBF, PBO Curve Optimizer doesn't explicitly reduce power per se. It lowers power draw at a given frequency, but that just opens up more frequency headroom for the CPUs boost functionality to use and you wind up right back at the max/stock power draw, just at a higher frequency now.

Deepcool AK500 (when installed properly) should be plenty capable of cooling a 5800X....is that where all this is coming from?

What's your CPU temps?
What case do you have? How many fans and where?
Click to expand...
CPU temps with no Eco Mode or anything is usually 50-55c idle and 75-80c under load. in Cinebench and Aida64 (never did the extreme tests) the temps shot to 90-92c instantly

idle and load temps I understand were still within acceptable range but I wasn’t really comfortable with them. different fan curves didn’t really help either so I just decided to go for Eco Mode

I have a Phanteks Eclipse p360a case and I’ve got 5 fans total; 2 on the front, 2 on top, and 1 in the back
 
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hotaru.hino said:
I don't think this is going to make much of a difference, but if the two on top are both exhaust, then the one towards the front is stealing air from the CPU cooler. Either have it as an intake or get rid of it.
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interesting, as far as I know, the top fans came with the case itself and the front fans were added in so it’s strange if it’s designed that way
 
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hotaru.hino said:
Case manufacturers do all sorts of questionable things and hopes nobody notices.
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hi, didn't want to make an entire new post about this, so I'll come back here since you've mentioned cases. is it also normal to feel a kind of 'humming vibration' from the case? it's not a violent vibration, nor can you really hear any sort of vibrating sound other than the fans, it's just something you can feel when you put your hand against the side, or the top, particularly the side with the motherboard or near the front or top fans

I assume fans, and maybe the motherboard too, can cause some vibrations throughout the case? my old pc vibrated pretty heavily but it was a terrible case with no airflow and a pretty subpar computer so I don't really want to go off that alone.

edit: I don't have an HDD, I know that can be a culprit of particularly loud/heavier vibrations
 
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The Guy From The Thing said:
interesting, as far as I know, the top fans came with the case itself and the front fans were added in so it’s strange if it’s designed that way
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The P360A comes with 2x120mm fans installed in the front (as intake). That's all.
Seems like you've got enough fans, the P360A has a nice mesh front panel, so airflow should be good.

Wouldn't hurt pulling or unplugging the front top fan to try hotaru's idea.

Just checking: you know how to determine a fan's airflow direction from looking at it? The spokes that hold the fan motor to the frame are on the downstream side.

80C for a 5800X & AK500 seems high. Maybe that's junction temp not core temp, dunno. And who am I to say if you've already reseated the AK500 with no change.
 
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