Why does my Ryzen R7 1700 not maintain max boost on single core?

[CuriousMike]

While exporting a few thousand photos in Lightroom, I've noticed that the CPU won't hold max boost on a single core for more than one HWMonitor update cycle.
The issues I might think of are:
Temperature. But the temp seems OK.
HWMonitor not reporting load correctly. So maybe 100% doesn't mean 100%?

ryzenboost by CuriousMIke, on Flickr

 

[Tup3x]

Eh? 100% usage on all cores thus 3,2 Ghz on all cores. Everything is working as intended.

 

[CuriousMike]

Eh? 100% usage on all cores thus 3,2 Ghz on all cores. Everything is working as intended.

OK, so you're saying if all cores are running at 3.2ghz, then the CPU will not boost any _single_ core to the 3.7ghz.

Or, in other words, a single core will only boost to 3.7ghz if _some number of other cores_ are not at 100%?

 

[VirtualLarry]

OK, so you're saying if all cores are running at 3.2ghz, then the CPU will not boost any _single_ core to the 3.7ghz.

Or, in other words, a single core will only boost to 3.7ghz if _some number of other cores_ are not at 100%?

Correct.

 

[plopke]

Tbh , i really disliked that AMD promted the 1700 as 3.7ghz, any normal use of that cpu will very very very rarely have it boost higher than 3.4 and most of the time has 3.2 boost all cores going.

I have a 1700 and never expected it to reach 3.7 out of the box or regularly boosting to that , but i understood why. So sad to see peopel askign questions like this but yeah it still a awesome processor and if you are in overclocking you can easly get 3.5-3.7 on all cores.

 

[ub4ty]

While exporting a few thousand photos in Lightroom, I've noticed that the CPU won't hold max boost on a single core for more than one HWMonitor update cycle.
The issues I might think of are:
Temperature. But the temp seems OK.
HWMonitor not reporting load correctly. So maybe 100% doesn't mean 100%?

ryzenboost by CuriousMIke, on Flickr

> Having a Ryzen 1700 and not OC'ing that bad boi on the stock cooler to 3.7GHz
You're sleep OP
> mfw Ryzen 1700 @ 3.7GHz 1.20V Stock cooler. Stable prime95/memtest/etc

You're getting 65W TDP for a reason. If you want to bump it up 30 watts or so into the 1800x range, you begin getting near 1800x performance.

 

[Shivansps]

It never boost beyond 3.2Ghz...

AMD fixed turbo for 2XXX Ryzens, but in the 1000 series is just broken as hell.

I had to use a FX8350 cooler to be able to get to 3.7 all cores @ 1.3V, but the noise its just terrible.

 

[ub4ty]

It never boost beyond 3.2Ghz...

AMD fixed turbo for 2XXX Ryzens, but in the 1000 series is just broken as hell.

I had to use a FX8350 cooler to be able to get to 3.7 all cores @ 1.3V, but the noise its just terrible.

3.7 @ 1.3V ... WEW lad. You should be stable at 1.2V or far less... the fudge?

 

[Hitman928]

Not every chip is the same. I had a 1700 for a little while and while I don't remember the exact number now, it needed about 1.3 V to get to 3.6 GHz. I actually never got higher than that because the fan got way too noisy for me on the stock cooler and so I backed off to 3.4 GHz to keep it nice and quiet. From what I've seen online, 3.7 GHz at 1.2 V would be a pretty rare chip.

 

[alexruiz]

What Board?
What PSU?
Cooler?
What firmware version on the board?

I have built a lot of PCs with Rzyen, several with a 1700, and all of them maintain 3.2GHz all core in multi-thread. Single cores will boost to 3.7GHz here and there.

It never boost beyond 3.2Ghz...

AMD fixed turbo for 2XXX Ryzens, but in the 1000 series is just broken as hell.

I had to use a FX8350 cooler to be able to get to 3.7 all cores @ 1.3V, but the noise its just terrible.

 

[Rifter]

This is why i overclocked it to 3.9 all cores, turbo for these was broken from the start unsure if they ever fixed it as i went the OC route anyways.

 

[CuriousMike]

I've just gone ahead and set the CPU multiplier to 37, so now all cores are _always_ at 3.7ghz.

Doesn't seem like an ideal situation, and it also seems to be taxing the stock cooler.

 

[Topweasel]

I've just gone ahead and set the CPU multiplier to 37, so now all cores are _always_ at 3.7ghz.

Doesn't seem like an ideal situation, and it also seems to be taxing the stock cooler.

Because the stock cooler was made for a 65w CPU. Not a 90W CPU.

Turbo isn't broken. AMD was very specific on how Precision boost and Turbo worked on the CPU. It is a 3.0GHz CPU that runs at 3.2GHz under 100% load and 3.7GHz under single core usuage and several clockspeeds in between depending on load and cooling.

The Ryzen 2k stuff is a bit better because the CPU can reliably run faster in general just at a power cost. So it's easier for AMD to allow for higher sustained turbo's. Just leaves it up to the OEM to curb power usage.

 

[Rifter]

I've just gone ahead and set the CPU multiplier to 37, so now all cores are _always_ at 3.7ghz.

Doesn't seem like an ideal situation, and it also seems to be taxing the stock cooler.

Yeah you may want to invest in a bigger cooler, i went a little overboard with a NH-D15 but even something smaller is still better than the stock cooler.

 

[CuriousMike]

Tonight I went to the local computer store and bought a BeQuiet cooler that works with AM4 out of the box.
Unfortunately, I tossed the stock plastic motherboard brackets that came on my motherboard so I have no way to mount it.
Which led me to the question - why would AMD's stock cooler not use the "stock" brackets that come on AM4 motherboards.

 

[Markfw]

Tonight I went to the local computer store and bought a BeQuiet cooler that works with AM4 out of the box.
Unfortunately, I tossed the stock plastic motherboard brackets that came on my motherboard so I have no way to mount it.
Which led me to the question - why would AMD's stock cooler not use the "stock" brackets that come on AM4 motherboards.

They do. BeQuiet is aftermarket. I don't know what you have done.

 

[CuriousMike]

When installing the stock Wraith Cooler, I had to remove plastic brackets on the motherboard as the Wraith screwed directly into the four metal posts that the plastic brackets were blocking.

The BeQuiet uses those plastic brackets as it uses a single bar that is supposed to snatch onto the plastic bracket (as opposed to directly screwing into the metal posts.)

I threw out the pieces highlighted in green
am4mobobrackets by CuriousMike, on Flickr

 

[Markfw]

When installing the stock Wraith Cooler, I had to remove plastic brackets on the motherboard as the Wraith screwed directly into the four metal posts that the plastic brackets were blocking.

The BeQuiet uses those plastic brackets as it uses a single bar that is supposed to snatch onto the plastic bracket (as opposed to directly screwing into the metal posts.)

I threw out the pieces highlighted in green
am4mobobrackets by CuriousMike, on Flickr

I have a wraith, I guess its different, mine uses the stock brackets.

 

[Dasa2]

All the spire use screws while the higher end models don't.

See if you cant take it back and exchange it for a HSF that has a mount plate with 4 screws

 

[LTC8K6]

https://www.amazon.com/PartsCollection-Retention-Bracket-Cooling-Mounting/dp/B07C2BXDQM

 

[Rifter]

there appears to be a few stl's on thingverse for those, you can probably print one if you have a 3dprinter or friend with one.

 

[CuriousMike]

https://www.amazon.com/PartsCollection-Retention-Bracket-Cooling-Mounting/dp/B07C2BXDQM

Dude, your google-amazon-fu is strong - I was looking for something like this. Thanks man!

 

[LTC8K6]

 

[ub4ty]

Because the stock cooler was made for a 65w CPU. Not a 90W CPU.

Turbo isn't broken. AMD was very specific on how Precision boost and Turbo worked on the CPU. It is a 3.0GHz CPU that runs at 3.2GHz under 100% load and 3.7GHz under single core usuage and several clockspeeds in between depending on load and cooling.

The Ryzen 2k stuff is a bit better because the CPU can reliably run faster in general just at a power cost. So it's easier for AMD to allow for higher sustained turbo's. Just leaves it up to the OEM to curb power usage.

1700's top cooler was made for 95W my dude which is why you can OC it to 1800x's 95W TDP performance and it handles it.
I'm not sure who told you otherwise. It's not a 65W cooler.

The one sold with the Ryzen 5's is a 65W cooler which is the wraith stealth

Ryzen 1700 comes w/ Wraith Spire RGB.
This is why the Ryzen 1700 sold so many units. Excellent value. I have it at 3.7Ghz @ 1.20V w/ memory OC to 2933. Memtest 4 pass no errors. Prime95/Aidi64 full system stress test. Absolutely no issues. Never gets above 65-67*C in a toasty 78*F room. No big advantage to Ryzen 2k processors. I'll upgrade at 7nm.

 

[ub4ty]

When installing the stock Wraith Cooler, I had to remove plastic brackets on the motherboard as the Wraith screwed directly into the four metal posts that the plastic brackets were blocking.

The BeQuiet uses those plastic brackets as it uses a single bar that is supposed to snatch onto the plastic bracket (as opposed to directly screwing into the metal posts.)

I threw out the pieces highlighted in green
am4mobobrackets by CuriousMike, on Flickr

Never throw away stuff from a build. Always tuck everything away into your computer case box and put it away in the attic or garage.