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OFFICIAL 5900X and 5950X two chiplet Zen 3 CPUs Overclocking thread

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#541 ·
vigorito said:
When i get whea error in event viewer APIC ID 10,okay its core 5 id,but which value in bios under curve optimizer is to change, direct number 5 core id as i see (0-11 are values msi mobo) or Core 4 since core 4 in bios is core 5 in ryzen master
Click to expand...
Change Core 5 in your BIOS. Like your BIOS, Windows start counting cores from 0.
 
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#545 ·
vigorito said:
When i get whea error in event viewer APIC ID 10,okay its core 5 id,but which value in bios under curve optimizer is to change, direct number 5 core id as i see (0-11 are values msi mobo) or Core 4 since core 4 in bios is core 5 in ryzen master
Click to expand...
u can open cpuz to see which apic id 10 correspondence to which core, and iirc cpuz starts count from core 0, so if its a 5, the bios should be the same

unless your bios starts core count from 1, then you have to change core 6 in bios
 
#546 ·
I have finally worked out a rough method for raising the single core performance as high as possible for my particular 5950X.
The best I had previously achieved was around CB R20 score 548 - 552.

2523939


The Curve Optimiser settings are quite a bit different from what I had been using. I was experimenting with every core but my 2 best cores at -30 and I accidentally set one of my best cores to -30 too.
It booted and ran then crashed during stress testing but it was almost stable. It seems that the CO settings and overall voltage used are all closely linked. The closer I set every core to the same settings the better it ran and the more stable it was likely to be.
CD R20 @ 655 single core was with 14 cores at - 30 and the other 2 best cores at - 27 and -13.
EDC is 130.

The best overall setting will most likely be with EDC at about 135 - 145
 
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#547 ·
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#548 ·
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#549 ·
I ran P95 Blend and saw my clocks settle at around 4.5GHz using 1.35v. Is it safe to assume that the cpu can do an all-core oc using the same values?
 

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#550 ·
rdr09 said:
I ran P95 Blend and saw my clocks settle at around 4.5GHz using 1.35v. Is it safe to assume that the cpu can do an all-core oc using the same values?
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I don't think that's a reasonable assumption for every workload for all-core at 1.35v. Look at your package power in the screenshot. It's only 105w. Maybe try looping CB23 and see what voltage you are at. On my 5900x with PBO and curve optimizer I can usually push between 190 and 210w running cb23 at 1.306v and 4.575 ghz with 420 mm Arctic Freezer II cooler and peak temps 74c.
 
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#551 ·
MikeS3000 said:
I don't think that's a reasonable assumption for every workload for all-core at 1.35v. Look at your package power in the screenshot. It's only 105w. Maybe try looping CB23 and see what voltage you are at. On my 5900x with PBO and curve optimizer I can usually push between 190 and 210w running cb23 at 1.306v and 4.575 ghz with 420 mm Arctic Freezer II cooler and peak temps 74c.
Click to expand...
I see what you are saying. +rep.

Here was in the middle of a 10 min loop and i see the package power sitting at 145W and this is at stock.

I do not want to try doing an all core oc that might fail cos this Giga requires removing the battery when BIOS fail. My GPU is right on top of it and it is water cooled.
 

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#552 ·
rdr09 said:
Here was in the middle of a 10 min loop and i see the package power sitting at 145W and this is at stock.
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sounds just about right, if you feel like temps are high (75c, though its still safe, for whatever reason triggers downclocking a few steps down, I have been researching for a while now, must have been how AMD's firmware works), PBO gives you more control, if you want to reduce the temps with that same power draw you can either limit the voltage via the TDC or EDC..
 
#553 ·
kairi_zeroblade said:
sounds just about right, if you feel like temps are high (75c, though its still safe, for whatever reason triggers downclocking a few steps down, I have been researching for a while now, must have been how AMD's firmware works), PBO gives you more control, if you want to reduce the temps with that same power draw you can either limit the voltage via the TDC or EDC..
Click to expand...
I was trying to avoid messing with TDC but may have to. Was able to boot at 4.4GHz without touching the voltage but any higher i have to mess with voltages. May have to read up on PBO.
 
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#554 ·
rdr09 said:
I was trying to avoid messing with TDC but may have to. Was able to boot at 4.4GHz without touching the voltage but any higher i have to mess with voltages. May have to read up on PBO.
Click to expand...
Voltages for corresponding frequency is stored on a table for Ryzen, its called FIT, if you manually undervolt via the menu on your BIOS it kinda defeats the purpose of the FIT table..what PBO does is load up the FIT table and based on the settings you put into your PPT, EDC, TDC it will automatically set/use the specified votlage for a given frequency, and when you add Curve Optimizer in the picture it gives a more fine grain control on the voltages each core uses, this is where your CCX quality comes into play, if you have a good/golden CCX it will allow you to undervolt upto -30mv and by doing so, given you meet the boosting conditions (thermal headroom, voltages, cpu load) you might see it boosting upto what your board is setting for auto or what you have manually inputted on the Boost Override (mhz)..

those 3 settings (PPT,EDC,TDC) are really confusing at 1st, but you'll get the gist/hang of it..note that this behavior may differ with different motherboards (maximum settings for those 3 maybe unlocked/unlimited or locked)

(do correct me if I am wrong at some point)
 
#555 ·
kairi_zeroblade said:
Voltages for corresponding frequency is stored on a table for Ryzen, its called FIT, if you manually undervolt via the menu on your BIOS it kinda defeats the purpose of the FIT table..what PBO does is load up the FIT table and based on the settings you put into your PPT, EDC, TDC it will automatically set/use the specified votlage for a given frequency, and when you add Curve Optimizer in the picture it gives a more fine grain control on the voltages each core uses, this is where your CCX quality comes into play, if you have a good/golden CCX it will allow you to undervolt upto -30mv and by doing so, given you meet the boosting conditions (thermal headroom, voltages, cpu load) you might see it boosting upto what your board is setting for auto or what you have manually inputted on the Boost Override (mhz)..

those 3 settings (PPT,EDC,TDC) are really confusing at 1st, but you'll get the gist/hang of it..note that this behavior may differ with different motherboards (maximum settings for those 3 maybe unlocked/unlimited or locked)

(do correct me if I am wrong at some point)
Click to expand...
Thank you. Sounds daunting already. lol. But this cpu has been at stock for a couple months now with just an uv and it is getting restless. May try this over the weekend.
 
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#556 ·
rdr09 said:
Thank you. Sounds daunting already. lol. But this cpu has been at stock for a couple months now with just an uv and it is getting restless. May try this over the weekend.
Click to expand...
you can apply a rather more fine tuned UV via PBO+Curve Optimizer (You can just leave PBO enabled in auto just to get to the Curve Optimizer menu for undervolting) you either put a global UV or a per Core UV..

I am just an OCD on temps, also like I have said 75c is what you'd never want to reach since beyond that observable limit the frequencies can sway up and down erratically..(may or may not have a hit on whatever you are doing, but for benching or steady workload it has a negative effect)
 
#557 ·
kairi_zeroblade said:
you can apply a rather more fine tuned UV via PBO+Curve Optimizer (You can just leave PBO enabled in auto just to get to the Curve Optimizer menu for undervolting) you either put a global UV or a per Core UV..

I am just an OCD on temps, also like I have said 75c is what you'd never want to reach since beyond that observable limit the frequencies can sway up and down erratically..(may or may not have a hit on whatever you are doing, but for benching or steady workload it has a negative effect)
Click to expand...
My gaming temp stays around 70c. The cores, tho, i mean all 12 are consistently and almost constantly at 4.6GHz during gaming. This is at stock but my Bus clck is set to 101.
 

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#558 · (Edited)
rdr09 said:
My gaming temp stays around 70c. The cores, tho, i mean all 12 are consistently and almost constantly at 4.6GHz during gaming. This is at stock but my Bus clck is set to 101.
Click to expand...
wow..I never boot when I set 101 on the bus clock..lol..

Got some good binned B-Die's today...hoooooweeeee!!

EDIT:

Finally!! (Thank God!!)..got some good binned B-Die for SRP..
Font Screenshot Electronic device Software Multimedia
 
#559 ·
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