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-   -   How to correctly overclock Ryzen 5 2600 [Multiplier vs Boost] (https://www.overclock.net/forum/10-amd-cpus/1719842-how-correctly-overclock-ryzen-5-2600-multiplier-vs-boost.html)

rul3s 02-04-2019 09:54 AM

How to correctly overclock Ryzen 5 2600 [Multiplier vs Boost]
 
Hi mates,
I've been searching a lot about correct way of overclocking Ryzen 2XXX series but still some thing I'm not getting. I've made some tests and found that for my R5 2600 (non X) I need 1.35v for 4.0GHz and 1.42 for 4.1GHz. So, on "traditional" overclocking that would be OK. Another thing is that on my motherboard (MSI x470 Carbon) there's a bug which disables AMD cool and quiet when overclocking, and thats not good.

On those new Ryzen 2XXX they included some new tecnologies, XFR2, PB2 and PBO.
XFR2 and PB2 are normal boost modes, going from 3.4 to 3.9GHz maximum, following the CPU stock values (on 2600), so manually overclocking to 4.0GHz is way better than normal boost, that only achieves 3.9GHz on 1-2 cores and 3.7GHz on all cores.

From what I've read, PBO is able to push ABOVE those normal boost levels, but as far as I've tried, is doing nothing. I've enabled PBO on UEFI and still seing maximum of 3.9GHz on single core and 3.7GHz on all cores.... Also I've read on some places that PBO is only for the X versions, and on anothers that it's for al 2XXX Ryzen's.

So now the concrete questions:

Can PBO push above normal boost clocks? For example, on a Ryzen 2600 (3.4-3.9GHz) go up to 4-4.1GHz?
Is PBO only for X versions? (2600x 2700x)
Is PBO overclocking better than traditional overclocking?
Is only a MSI bug or all boards disables downclock and downvolt (Cool and quiet) when changing multiplier?

Thanks guys!

Undervolter 02-05-2019 12:37 PM

Quote:

Originally Posted by rul3s (Post 27838586)
Hi mates,
I've been searching a lot about correct way of overclocking Ryzen 2XXX series but still some thing I'm not getting. I've made some tests and found that for my R5 2600 (non X) I need 1.35v for 4.0GHz and 1.42 for 4.1GHz. So, on "traditional" overclocking that would be OK. Another thing is that on my motherboard (MSI x470 Carbon) there's a bug which disables AMD cool and quiet when overclocking, and thats not good.

On those new Ryzen 2XXX they included some new tecnologies, XFR2, PB2 and PBO.
XFR2 and PB2 are normal boost modes, going from 3.4 to 3.9GHz maximum, following the CPU stock values (on 2600), so manually overclocking to 4.0GHz is way better than normal boost, that only achieves 3.9GHz on 1-2 cores and 3.7GHz on all cores.

From what I've read, PBO is able to push ABOVE those normal boost levels, but as far as I've tried, is doing nothing. I've enabled PBO on UEFI and still seing maximum of 3.9GHz on single core and 3.7GHz on all cores.... Also I've read on some places that PBO is only for the X versions, and on anothers that it's for al 2XXX Ryzen's.

So now the concrete questions:

Can PBO push above normal boost clocks? For example, on a Ryzen 2600 (3.4-3.9GHz) go up to 4-4.1GHz?
Is PBO only for X versions? (2600x 2700x)
Is PBO overclocking better than traditional overclocking?
Is only a MSI bug or all boards disables downclock and downvolt (Cool and quiet) when changing multiplier?

Thanks guys!

Hello, first i must warn you, that my Ryzen 2600 arrives next week, so what i will tell you are just the fruit of googling in the past 2 days, before buying.

1-2) PBO can push above normal boost, but you need 2600X (or other "x" CPU):

Precision Boost Overdrive essentially combines the Precision Boost 2.0 and Extended Frequency Range 2.0 to deliver elevated performance as and when needed. You will need a Ryzen 'X' processor and a 400-series motherboard to leverage it. While the AMD B350 chipsets do auto-overclock 'X' CPUs to an extent, the B450 chipset's AMD PBO ability allows for much better performance gains when using a Ryzen 'X' processor.

https://www.msi.com/blog/amd-ryzen-b...set-difference

3) I am not sure, but i have read many people saying that if you get an "X" version, it's better to just let it do its thing, between PBO and XFR. Hardcore overclockers might think otherwise.

4) From what i read, as soon as you change multi and voltage, all boards get with stuck frequency. Workarounds i 've seen: Overclocking through P-States (ASUS Zenstates users claim success) or overclocking through offset and using "weird" multi in Gigabyte boards.For example, instead of 3.8, make it so it does 3.75 with offset. Then it keeps the power savings with the lower power states. I have no idea if this works on MSI too.

Hopefully some more experienced user will give you better answers.

rul3s 02-06-2019 02:14 AM

Quote:

Originally Posted by Undervolter (Post 27840088)
Hello, first i must warn you, that my Ryzen 2600 arrives next week, so what i will tell you are just the fruit of googling in the past 2 days, before buying.

1-2) PBO can push above normal boost, but you need 2600X (or other "x" CPU):

Precision Boost Overdrive essentially combines the Precision Boost 2.0 and Extended Frequency Range 2.0 to deliver elevated performance as and when needed. You will need a Ryzen 'X' processor and a 400-series motherboard to leverage it. While the AMD B350 chipsets do auto-overclock 'X' CPUs to an extent, the B450 chipset's AMD PBO ability allows for much better performance gains when using a Ryzen 'X' processor.

https://www.msi.com/blog/amd-ryzen-b...set-difference

3) I am not sure, but i have read many people saying that if you get an "X" version, it's better to just let it do its thing, between PBO and XFR. Hardcore overclockers might think otherwise.

4) From what i read, as soon as you change multi and voltage, all boards get with stuck frequency. Workarounds i 've seen: Overclocking through P-States (ASUS Zenstates users claim success) or overclocking through offset and using "weird" multi in Gigabyte boards.For example, instead of 3.8, make it so it does 3.75 with offset. Then it keeps the power savings with the lower power states. I have no idea if this works on MSI too.

Hopefully some more experienced user will give you better answers.

Thanks! I was going crazy about PBO on non-X versions...
By the way, MSI has a problem with overclocking by multiplier and then Cool and quiet, simply it doesnt works. Another user from 2700X thread reported that it works on an Asus Motherboard, and on the Gigabyte x470 Aorus Ultra gmaing that i had before, it also worked.

Undervolter 02-06-2019 05:51 AM

1 Attachment(s)
Quote:

Originally Posted by rul3s (Post 27840830)
Thanks! I was going crazy about PBO on non-X versions...
By the way, MSI has a problem with overclocking by multiplier and then Cool and quiet, simply it doesnt works. Another user from 2700X thread reported that it works on an Asus Motherboard, and on the Gigabyte x470 Aorus Ultra gmaing that i had before, it also worked.

Go figure... Well, one of the reasons i chose the 2600 over the 1700 (almost same price), is that i thought i 'd have less troubles with the 2600 and no desire for overclocking.

I mean, this is stock Ryzen 2600 with just the normal PB2. It's not bad at all! It runs over 3.6Ghz most of the time, while keeping at 65W. That's plenty good for me!


https://www.overclock.net/forum/atta...251802&thumb=1

At least people with X470 can have both good VRM and BIOS. But, to me, X470 is just a waste of money, since i will never do wild overclocks. And in B450 you have either good VRM with BIOS bugs (MSI) or crappy VRM with less bugs (Gigabyte, Asrock) or crappy VRM with no bugs (ASUS) :p After having lived with Gigabyte BIOS bugs in the FX, i think i made the right choice, since how bad can the MSI be at stock...

Good luck for your overclocking. However, there is still some hope, since i read MSI in late December came out with new BIOSes that support vcore offset, so it seems they are still trying to improve their BIOS. You never know... Although, usually, when a new motherboard chipset comes out, they stop improving the previous ones. It reminds me a bit the situation with my AM2+ motherboard, that would lose Cool N Quiet, as soon as you touched something. This changed in AM3+ motherboards. Something similar will probably happen with AM4+, which will have the most perfected BIOS.

rul3s 02-06-2019 08:53 AM

Quote:

Originally Posted by Undervolter (Post 27841006)
Go figure... Well, one of the reasons i chose the 2600 over the 1700 (almost same price), is that i thought i 'd have less troubles with the 2600 and no desire for overclocking.

I mean, this is stock Ryzen 2600 with just the normal PB2. It's not bad at all! It runs over 3.6Ghz most of the time, while keeping at 65W. That's plenty good for me!


https://www.overclock.net/forum/atta...251802&thumb=1

At least people with X470 can have both good VRM and BIOS. But, to me, X470 is just a waste of money, since i will never do wild overclocks. And in B450 you have either good VRM with BIOS bugs (MSI) or crappy VRM with less bugs (Gigabyte, Asrock) or crappy VRM with no bugs (ASUS) :p After having lived with Gigabyte BIOS bugs in the FX, i think i made the right choice, since how bad can the MSI be at stock...

Good luck for your overclocking. However, there is still some hope, since i read MSI in late December came out with new BIOSes that support vcore offset, so it seems they are still trying to improve their BIOS. You never know... Although, usually, when a new motherboard chipset comes out, they stop improving the previous ones. It reminds me a bit the situation with my AM2+ motherboard, that would lose Cool N Quiet, as soon as you touched something. This changed in AM3+ motherboards. Something similar will probably happen with AM4+, which will have the most perfected BIOS.

In my case the 2600 it's just a step from my old 1150 platform to the Ryzen 3000. This is why I bought a good x470 mobo, to sell the 2600 and buy those news Zen2 at the end of the year. If not, I would have done the same as you, a good B450 + 2600.

Undervolter 02-06-2019 11:01 AM

Quote:

Originally Posted by rul3s (Post 27841242)
In my case the 2600 it's just a step from my old 1150 platform to the Ryzen 3000. This is why I bought a good x470 mobo, to sell the 2600 and buy those news Zen2 at the end of the year. If not, I would have done the same as you, a good B450 + 2600.

I see. I don't buy/sell used parts. My old parts go for free to 2 relatives of mine for office PCs and to a friend, so basically what i buy, gives no return and i have never overclocked for daily use past stock clock of a higher model, so i don't have use for X470. If i wanted at some point to get the 16c Ryzen of 3rd or 4th gen, i would have to get x470, since i think they will be 105-125W TDP. But i intend to stay max 95W TDP, 65W actually if i can help it, so B450 should be fine.

I should have waited for Ryzen 3000 in all honesty, but i got tired waiting and i think B550 motherboards, will need at least another 6 months before they become widely available, at the best case. So i 2000 now and i will probably get a 4000 when it gets EOL and probably i will get a 650 AM4+ motherboard by then and keep the B450 as backup.

CravinR1 02-07-2019 10:42 PM

I got a R7 1700x + AX370 Gaming for $150 total on black friday. I run my 1700x @ 3.8 ghz with 1.1875v

Much better than stock 2600

Undervolter 02-08-2019 07:26 AM

Quote:

Originally Posted by CravinR1 (Post 27843866)
I got a R7 1700x + AX370 Gaming for $150 total on black friday. I run my 1700x @ 3.8 ghz with 1.1875v

Much better than stock 2600

That's a great price! I wish we had such deals, but alas, they don't exist... My main concern with 1st gen Ryzen are 1) memory compatibilty (motherboard vendors even have different QVL and for example, on MSI my kit which is compatible for Pinnacle ridge, doesn't even appear on Summit ridge), 2) heat. I saw that stock 1800x, draws 180-200W. 200W is what my [email protected] draws when put on the Asrock 970 Extreme3. On the Gigabyte 970 UD3p, it spikes to 220W. That's a lot of watts for a 4 phase motherboard and i don't want to have to deal again with marginal VRM or with the FX heat generation, especially during summer.

Had i found that combo for 150 euro, i would have bought it too, to be honest and i would have kept it at stock. But, at the end, the Ryzen 2600 will run a bit faster than the 1700x stock vs stock and i don't even do video encoding anymore, so 8 cores would be overkill right now... I will grab a 65W 8c when Ryzene 4000 goes EOL at this point, just to have a last hurrah for Win7, since i doubt that motherboards past 2021 will keep having compatibility for Win7. 4 phase motherboard, 65W, no headaches, plenty for my modest needs.

Nice to see another familiar nickname again.


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