Question How to change clock speed ratio in ryzen cpu AM5

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Last edited:
ridwan123 said:
I got 9800x3d with asus prime x870 p wifi csm.reason is i want to get stable 5400ghz like my previous intel does
Click to expand...
Don't do that, x3D are specific because of added cache which needs to be synced to frequency and memory but it's not adjustable by itself. You could make it worse. Best way is to control voltage and PBO.
Use some of these guides for better tuning instead.
View: https://www.youtube.com/watch?v=Fl5Ns1nzglQ

View: https://www.youtube.com/watch?v=4JXvewurhks&t=228s
 
CountMike said:
Don't do that, x3D are specific because of added cache which needs to be synced to frequency and memory but it's not adjustable by itself. You could make it worse. Best way is to control voltage and PBO.
Use some of these guides for better tuning instead.
View: https://www.youtube.com/watch?v=Fl5Ns1nzglQ

View: https://www.youtube.com/watch?v=4JXvewurhks&t=228s
Click to expand...
I just crash only 1 time which is today during 4 day period of playing.my overclock setting is only setting cpu boost clock override +200 ghz.during 4 day of playing games only 1 time crash during CS 2 but during dota 2 it is not crash.the gpu usage is always high always been 100 percent usage during cs 2 which is many people are looking in the past but they cant seem to know it.in dota 2 the clock is 5300 mhz too.i suspect the crash happen because the gpu usage is so high that make my glass panel so hot or my overclock setting.i am not doing PBO to enabled because it lies.in cs 2 the clock is sit about 5300 mhz and is crash but in previous day i set it default which is 5225 ghz and it is still ok and in dota 2 is 5300 ghz beyond stock and still stable
 
Last edited:
ridwan123 said:
I just crash only 1 time which is today during 4 day period of playing.my overclock setting is only setting cpu boost clock override +200 ghz.during 4 day of playing games only 1 time crash during CS 2 but during dota 2 it is not crash.the gpu usage is always high always been 100 percent usage during cs 2 which is many people are looking in the past but they cant seem to know it.in dota 2 the clock is 5300 mhz too.i suspect the crash happen because the gpu usage is so high that make my glass panel so hot or my overclock setting.i am not doing PBO to enabled because it lies.in cs 2 the clock is sit about 5300 mhz and is crash but in previous day i set it default which is 5225 ghz and it is still ok and in dota 2 is 5300 ghz beyond stock and still stable
Click to expand...
Switch on PBO.
Increase the available power, motherboard limits.
Set curve editor to whatever is stable - undervolting. My PC runs a -20 setting.
Set the boost override to +200
Set the processor max temp to 85C, below the bios limits by 10C.

Single core I see 5.8GHz, multicore I see upto 5.4GHz depending on load.

PBO opportunistically boosts the processor. It does so when it is ‘safe’.
 
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stuff and nonesense said:
Switch on PBO.
Increase the available power, motherboard limits.
Set curve editor to whatever is stable - undervolting. My PC runs a -20 setting.
Set the boost override to +200
Set the processor max temp to 85C, below the bios limits by 10C.

Single core I see 5.8GHz, multicore I see upto 5.4GHz depending on load.

PBO opportunistically boosts the processor. It does so when it is ‘safe’.
Click to expand...
I switch too pbo nothing affect
 
ridwan123 said:
I switch too pbo nothing affect
Click to expand...
Got to remember that unless your cooling is exotic you won’t see a big overclock. AMD ryzen has been binned close to its clock limits. The difference between stock clocks and overclocked performance is small. GPU overclocks may yield more performance depending on what the binning of that chip is.

PBO gives a boost depending on temps and power if there is headroom. It is conservative in that it isn’t going to allow the processor to destroy itself.

If you want to manually overclock, increase power limits, set the multiplier to whatever value you wish to use. You will lose the boost function for single thread while overclocked. Some programs will run more slowly.
Remember that the interactions of the processor and the platform will limit your OC. The 9800x3d is already quicker than, or at worst equal to, any intel chip in games. Any increase in frame rate will be marginal at best.
 
stuff and nonesense said:
Got to remember that unless your cooling is exotic you won’t see a big overclock. AMD ryzen has been binned close to its clock limits. The difference between stock clocks and overclocked performance is small. GPU overclocks may yield more performance depending on what the binning of that chip is.

PBO gives a boost depending on temps and power if there is headroom. It is conservative in that it isn’t going to allow the processor to destroy itself.

If you want to manually overclock, increase power limits, set the multiplier to whatever value you wish to use. You will lose the boost function for single thread while overclocked. Some programs will run more slowly.
Remember that the interactions of the processor and the platform will limit your OC. The 9800x3d is already quicker than, or at worst equal to, any intel chip in games. Any increase in frame rate will be marginal at best.
Click to expand...
I just set pbo enabled plus +200 mhz the processor is sit about 5300 mhz.maybe there are no enough headroom.the thing like edc and tdc is same as intel cpu current limit but maybe its different from intel to amd whereas increasing cpu A CUrrent limit boost the frequency.but it still fine,just hoping today update windows 24 h2 will be the best
 
EDC, Tdc and Ppt(?) I set to 500.. meaningless numbers, you are setting current and power limits.

I set the curve optimiser to -20, my processor is stable with that value. It undervolts the CPU. Trial and error testing is required to set it. Start at -10… then -15… then find where it crashes and bring it back to a stable value.

The boost override you have already set to +200

I limit the cpu to 85°C, max temp option in the BIOS, limits the max temp, I may lose a few MHz but the cpu gets a bit of protection. It can’t cook itself.

I set the (memory) context restore to “on”, this speeds up booting.
 
stuff and nonesense said:
EDC, Tdc and Ppt(?) I set to 500.. meaningless numbers, you are setting current and power limits.

I set the curve optimiser to -20, my processor is stable with that value. It undervolts the CPU. Trial and error testing is required to set it. Start at -10… then -15… then find where it crashes and bring it back to a stable value.

The boost override you have already set to +200

I limit the cpu to 85°C, max temp option in the BIOS, limits the max temp, I may lose a few MHz but the cpu gets a bit of protection. It can’t cook itself.

I set the (memory) context restore to “on”, this speeds up booting.
Click to expand...
If i set pbo enabled the edc,tdc,and ppt is 1000 and with +200 mhz the clock is about 5300 mhz the temp still not reaching its limit about 20 degree less.the thermal limit is on auto
 
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