5600 curve OC question

[notaenthusiast]

 

Hi, so i'm a retired pc enthusiast that bought new stuff ever year and now just buy bang for buck every 3 years and zero OC.

 

I go this 5600 and i remember hearing about this curve overclocking that was new with ryzen3. So i went watch a couple videos and the lower temps, lower voltage and higher boost convinced me.

 

I'm on a gigabyte B550 Gaming X v2.

 

So i reached -25 curve per core in all cores, but i got no frequency boost over 4.449mhz. I tried 4 games, superposition bench and cb23. They do get to stay all the time at max in cb23, effective clocks, but no gains in boost. I thought my power supply must be dying or something but then i changed the pbo max override to 200mhz and i got 4649mhz in cb23 with 68-70º temps, effective clocks, the lack of juice went out of the window. But the problem remained, again i tested 4 games and superposition and i never went over 4649mhz.

 

Its like im blocked to the pbo override option, if its disabled i can't go over the stock boost, even with low curve settings, if i set to 50\100\200 my boost is locked to that value.

 

Changing EDC, TDC and PPT had no effect.

 

So i'm doing something wrong? It's bios locked? Bios bug? I feel with the headroom i have i should get higher boost in some scenarios. If i get 4649mhz stable effective clocks on cb23 on 70º, how come not once i get a single thread higher boost then that?

 

I'm not really upset, im getting good scores on cb23 and cpuz in multi and thread compared to scores i saw online, just curious, just wondering why in light loads\single thread i'm not getting higher boost. 

 

 

Any input will be appreciated.

[PDifolco]

What could happen is that your undervolt don't send enough power to cores to reach more than 4650

Try to set CO to -15 or -10 on your best 2 cores and check 

 

[notaenthusiast]

2 hours ago, PDifolco said:

What could happen is that your undervolt don't send enough power to cores to reach more than 4650

Try to set CO to -15 or -10 on your best 2 cores and check 

 

 

Ok, thanks and interesting, the videos that i saw didn't mentioned that u could actually starve the cores of reaching the main goal. Hwinfo, event viewer and ryzenmaster all say my best cores are 3 and 6, incidentally the only whea error i had was on core 6, i had to lower to 20 from 25.

 

Gonna try -10 on 3 and 6. 

[PDifolco]

1 hour ago, notaenthusiast said:

 

Ok, thanks and interesting, the videos that i saw didn't mentioned that u could actually starve the cores of reaching the main goal. Hwinfo, event viewer and ryzenmaster all say my best cores are 3 and 6, incidentally the only whea error i had was on core 6, i had to lower to 20 from 25.

 

Gonna try -10 on 3 and 6. 

WHEA error on core drop is the sign a core has not enough voltage because of a too aggressive undervolt, that's why you should put less undervolt on the best cores that wants to clock higher

On my 5900X I put 2 best cores at -15, 3rd and 4th at -20 rest at -30 

[notaenthusiast]

On 12/19/2022 at 4:58 PM, PDifolco said:

What could happen is that your undervolt don't send enough power to cores to reach more than 4650

Try to set CO to -15 or -10 on your best 2 cores and check 

 

 

It was a good tip, but no. I put -10 on my best two cores and still the same, i cant go over 4641mhz, the magic number. For piece of mind and disable the PBO boost override and i was locked at stock boost, which makes no sense since with the same settings i gest stable effective clocks at 4641mhz running cb23 but can't go over 4400 in single thread cb23 test.

 

I'm 100% locked to the option i select in the PBO boost override. Dunno if its a feature or bug, i might post something in MSI forum.

 

 

 

[PDifolco]

43 minutes ago, notaenthusiast said:

 

It was a good tip, but no. I put -10 on my best two cores and still the same, i cant go over 4641mhz, the magic number. For piece of mind and disable the PBO boost override and i was locked at stock boost, which makes no sense since with the same settings i gest stable effective clocks at 4641mhz running cb23 but can't go over 4400 in single thread cb23 test.

 

I'm 100% locked to the option i select in the PBO boost override. Dunno if its a feature or bug, i might post something in MSI forum.

 

 

 

 

Don't use CB23 single core test as a max clock enabler, it's a bit weird and I've never seen any high clock with it whatever the score you get !

Rather use HWInfo64and do things like gaming to check highest clock

Anyway, the 5600X isn't a good OC chip, it's advertised for max 4.65GHz boost, I suspect undervolting don't work well there, maybe PBO + Additional voltage + higher PPT/EDC can work better

SkatterBencher managed to get 4.85GHz here, but on a static OC