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AMD Ryzen 7 5800X 3D Cache Eight Core 4.5GHz (Socket AM4) Processor - Retail - Go Go Go xD

almoststew1990 said:
Hmmm I get 4.15GHz across all core when running Cinebench r23 for 74c package temperature and 71c CPU temperature. This is on a 360mm AIO by alphacool Eibaser or something. Is that normal sounding? I'm paranoid that the cooler isn't mounted properly lol
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Basically yes, this is normal.

If you don’t have an option to set to the CPU to PBO -30 then in Cinebench will run at around that speed under an all core load.

I was running the CPU at default with a Noctua NH12A which peaked around 74/75 and the speed eventually dropped to around 4.15/4.175. This is because it’s an all core load it happens.

When I enabled PBO in the bios, my motherboard allows for this, running the same benchmark the temps would remain fairly similar as it was hitting and staying at 4.4 throughout the all core bench. Although at a lower voltage.

Score of approx 5300 vs approx 5600. So I wouldn’t worry. In gaming, general usage etc you will see the CPU hitting 4.45 pretty much without doing anything to it.

If you can get PBO enabled through the bios or through a specific software solution you will see lower idles and loads in general usage. But as I’ve said at the start, for default your CPU is acting as it should.
 
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jrodga2k5 said:
Basically yes, this is normal.

If you don’t have an option to set to the CPU to PBO -30 then in Cinebench will run at around that speed under an all core load.

I was running the CPU at default with a Noctua NH12A which peaked around 74/75 and the speed eventually dropped to around 4.15/4.175. This is because it’s an all core load it happens.

When I enabled PBO in the bios, my motherboard allows for this, running the same benchmark the temps would remain fairly similar as it was hitting and staying at 4.4 throughout the all core bench. Although at a lower voltage.

Score of approx 5300 vs approx 5600. So I wouldn’t worry. In gaming, general usage etc you will see the CPU hitting 4.45 pretty much without doing anything to it.

If you can get PBO enabled through the bios or through a specific software solution you will see lower idles and loads in general usage. But as I’ve said at the start, for default your CPU is acting as it should.
Click to expand...

this is what I dont get mine at stock will hit 84c with 360 aio with pbo -30 its 79c-80c during cb23 runs , either its the cooler which i remounted few times , motherboard bios just pushing to much power ( in MSI forums they getting the same results) or lost the silicon lottery

older bios gives better temps at 75c but no PBO in bios

few games I played averages 55-65c depending on the game
 
uscool said:
this is what I dont get mine at stock will hit 84c with 360 aio with pbo -30 its 79c-80c during cb23 runs , either its the cooler which i remounted few times , motherboard bios just pushing to much power ( in MSI forums they getting the same results) or lost the silicon lottery

older bios gives better temps at 75c but no PBO in bios

few games I played averages 55-65c depending on the game
Click to expand...

So that sounds normal especially during gaming.

I just ran a quick Cinebench run for comparison, my load CPU temp during cb23 was 79c. I assume the way PBO acts for this chip is that provided the voltages remain low (1.2v in my case at -30) there is a bit more scope to increase the temps and speed. I was at 4.4Ghz/4.425Ghz fluctuating throughout the test while sticking at that peak of 79C.

If I back down from using PBO my CPU would target and sit at 74/75C but the all core speed would be 4.125/4.15Ghz.

With my board I wasn't running the Asus optimised performance setting which you can enable which does increase volts and thus temps as it tries to maintain a higher boost. It's likely the MSI has something like that enabled by default.

As for PBO I don't see anything wrong in your temps at all.
 
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jrodga2k5 said:
So that sounds normal especially during gaming.

I just ran a quick Cinebench run for comparison, my load CPU temp during cb23 was 79c. I assume the way PBO acts for this chip is that provided the voltages remain low (1.2v in my case at -30) there is a bit more scope to increase the temps and speed. I was at 4.4Ghz/4.425Ghz fluctuating throughout the test while sticking at that peak of 79C.

If I back down from using PBO my CPU would target and sit at 74/75C but the all core speed would be 4.125/4.15Ghz.

With my board I wasn't running the Asus optimised performance setting which you can enable which does increase volts and thus temps as it tries to maintain a higher boost. It's likely the MSI has something like that enabled by default.

As for PBO I don't see anything wrong in your temps at all.
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yeah its just me over thinking it as usual
 
almoststew1990 said:
X470-pro prime (possibly in a different order) on 6042 bios. A look around the internet suggests I should have it...
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I don't want to disappoint but I'm going to say you won't.

The b550i for example doesn't have it yet and it's on a similar bios. Last for both boards is the bios update with AGESA V2 PI 1.2.0.7. (Both dated around May 2022)

For the b550-f Gaming for example that has had a release since the 1.2.0.7 update which is simply down as 'Improve system compatability'. This is the bios which includes the AI Overclocking options. (Dated November 2022)
 
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uscool said:
check under advanced
Precision Boost Overdrive (PBO), one located under "AI Tweaker" and the other under "Advanced -> AMD Overclocking
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It won't be there as AMD disable those options through their traditional Overclocking option in the bios. If the AI Tweaker doesn't have the PBO option from ASUS then it won't be there. As explained above I don't believe that @almoststew1990 board has the bios which enables this. It's still on the last AGESA update which is the same scenario facing the b550i.

As you've suggested, the best method for now will be to use the software through Windows to do so until I bios update is released, if it is.
 
almoststew1990 said:
Ah ok thanks for the help guys. I'll keep an eye out for any later bios releases but I'll probably experiment with manually reducing the voltage more as I'm not a big fan of software over/underclocking
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On my Crosshair Hero 8 its in Extreme Tweaker\precision boost overdrive\curve optimizer.
Hope this helps.
 
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Looks like I can't do PBO in bios on Gigabyte B550 Aurous Elite V2.

I did the version in windows posted above and I see some nice gains at -15, at -30 it passes CB R20 still but the score isn't any higher, though temps seem to be way lower. Cooler is Actic LF 360.

Stock temp 78 C
-15 temp 79 C
-30 temp 69 C
 
Just did some CB23 runs with PBO -30 on and off, I have a negative VCore offset in BIOS of 0.05v cooler is NHD-15
PBO Off - Average Core Clock = 4.2Ghz / CPU 74.1c / VCore Av 1.161 / VCore Max 1.237 / Score 13963
PBO On - Average Core Clock = 4.4Ghz / CPU 78.4c / VCore Av 1.174 / VCore Max 1.188 / Score 14787
 
Had a fun afternoon at B&Q but now I'm trying out some more undervolting. Eyeballing "averages" on hwmonitor near the end of CB23 runs I'm getting 4.167GHz, 69c package 67c cores, 1.144v cores (-0.175 offset in BIOS). 97w package. Score= 14092.

It's significantly quieter than the stock 1.2v when all 3 noctua pressure-something fans were spinning right up.

Tbh I think I would take decreased temps and noise over increasing them although being 300MHz down still makes me irrationally jelly lol
 
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