Ryzen 5800X

916Mick · 21 Mar 2022 at 20:58

Hi there,
I've just fitted a 5800x to my X470 board, and all is good except it doesn't seem
to down clock.
The lowest clockspeed at idle is 3599Mhz.
Have I missed something in the Bios or the Powerplan.
Also Motherboard is Asus Crosshair vII Hero and I can't seem to find PBO & PCO in
the Bios under Advanced where Youtube vids show it.
Again am I missing something or is age finally catching up :confused:

Finners · 21 Mar 2022 at 23:04

What are you using to measure the current speed?

Check windows power settings, should be on balanced for it to downclock.

Thekwango · 21 Mar 2022 at 23:12

916Mick said:
Also Motherboard is Asus Crosshair vII Hero and I can't seem to find PBO & PCO in
the Bios under Advanced where Youtube vids show it.
Again am I missing something or is age finally catching up

Motherboard bios might need an update if some options are missing.

Dg834man · 22 Mar 2022 at 00:47

Advanced power options under processor power management set the minimum processor state to something lower than the default 99% it resets every time you update the chipset drivers

brakeinup · 22 Mar 2022 at 15:37

Isn't that idle speed normal?

916Mick · 22 Mar 2022 at 20:10

Finners said:
What are you using to measure the current speed?

Check windows power settings, should be on balanced for it to downclock.

I'm using CPUID Hardware Monitor for CPU speed
Power settings are on Balanced with 5% minimum CPU utilization

Thekwango said:
Motherboard bios might need an update if some options are missing.

Motherboard is on laterst bios

Finners · 22 Mar 2022 at 20:18

916Mick said:
I'm using CPUID Hardware Monitor for CPU speed
Power settings are on Balanced with 5% minimum CPU utilization

Motherboard is on laterst bios

That seems normal to me, my 5900x reports the same. If you use a more detailed monitoring software like HWinfo64 and expand the "core Effective clocks" header you'll hopefully see that the cores are going much lower, most of mine have dropped to below 5Mz at some point.

https://www.hwinfo.com/download/

916Mick · 22 Mar 2022 at 20:31

Finners said:
If you use a more detailed monitoring software like HWinfo64 and expand the "core Effective clocks" header you'll hopefully see that the cores are going much lower,

Ok. got it. some cores are going down to 0.1 Mhz . thanks

Thekwango · 22 Mar 2022 at 20:34

916Mick said:
Motherboard is on laterst bios

Hmmm, perhaps the YouTube vids you watched were using older bios versions. No reason I can think of that the options wouldn’t be in the same place as the vids if you’re running the same board and bios.

Kirby Wurm · 23 Mar 2022 at 06:57

As @Finners said it's just misreporting. Effective clocks in HWInfo or Ryzen Master would both show the actual idle clocks.

916Mick · 23 Mar 2022 at 22:13

Thekwango said:
Hmmm, perhaps the YouTube vids you watched were using older bios versions. No reason I can think of that the options wouldn’t be in the same place as the vids if you’re running the same board and bios

Thanks for helping. I found both pbo & pco and set +200mhz & negative 15 all cores on the curve optimizer.
On Cinebench R23 i'm getting all cores 5049mhz @ 1.420 volts @ 73c - Well pleased.
I've just gotta work out how to undervolt my 3080ti now

Thekwango · 23 Mar 2022 at 22:37

916Mick said:
Thanks for helping. I found both pbo & pco and set +200mhz & negative 15 all cores on the curve optimizer.
On Cinebench R23 i'm getting all cores 5049mhz @ 1.420 volts @ 73c - Well pleased.
I've just gotta work out how to undervolt my 3080ti now

Glad you’re sorted and good luck with the gpu!

Alt0153 · 21 Apr 2022 at 20:31

916Mick said:
Thanks for helping. I found both pbo & pco and set +200mhz & negative 15 all cores on the curve optimizer.
On Cinebench R23 i'm getting all cores 5049mhz @ 1.420 volts @ 73c - Well pleased.
I've just gotta work out how to undervolt my 3080ti now

meanwhile ive set mine to 4650 all core and 1.2v, lost 0 r23 points as it doesnt thermal throttle and uses 123ish watts at full bore

luismenendez · 5 May 2022 at 11:18

That is an amazing result! did you get the new revision B? I read that runs cooler so can achieve better clocks.

JollyJamma · 5 May 2022 at 16:18

916Mick said:
Thanks for helping. I found both pbo & pco and set +200mhz & negative 15 all cores on the curve optimizer.
On Cinebench R23 i'm getting all cores 5049mhz @ 1.420 volts @ 73c - Well pleased.
I've just gotta work out how to undervolt my 3080ti now

Sick result. Well done.

humbug · 5 May 2022 at 22:00

I do see this posted every so often, i don't know but its not normal.

When my cores are not sleeping they clock as low as 239Mhz, i have a screen cap here with one at 306Mhz.

916Mick said:
Thanks for helping. I found both pbo & pco and set +200mhz & negative 15 all cores on the curve optimizer.
On Cinebench R23 i'm getting all cores 5049mhz @ 1.420 volts @ 73c - Well pleased.
I've just gotta work out how to undervolt my 3080ti now

That's..... amazing.

eeii · 6 May 2022 at 20:40

Sterling effort

916Mick · 7 May 2022 at 21:48

humbug said:
I do see this posted every so often, i don't know but its not normal.

When my cores are not sleeping they clock as low as 239Mhz, i have a screen cap here with one at 306Mhz.

I see you are using Ryzen Master to tune your CPU.
Is this the same as using the BIOS ?

916Mick · 7 May 2022 at 21:50

eeii said:
Sterling effort

Not really . I just followed YT videos :rolleyes:

heatonpkmassive · 7 May 2022 at 22:02

916Mick said:
I see you are using Ryzen Master to tune your CPU.
Is this the same as using the BIOS ?

Effectively, yes. I prefer using the BIOS myself.