5800X no OC crashes AIDA64

Guest2 · 3 Dec 2020 at 15:02

pc-guy said:
see image below. you need to select a profile then you can tweak stuff. once done click test and apply and do some stress testing to see if it is all stable. mine is zen2 but i imgaine it is the same for zen3. the cores wiht bright stars are the best cores in the CCX/CCD. in your case you will only have one CCX and one CCD

as you can see i can set individual core clocks on ryzen master obviousl those are complete rubbish clocks

I’m sure i tried setting individual clocks on ryzen master in a profile snd it didnt allow it / it was locked. Might give it another go. Ta

edit - Gave it a go, manual OC all to 4.7Ghz which was already set. Increased the voltage to 1.365 and increased clocks on core1 0 and 6 to 4.9Ghz. CPUZ Multi core test they all downgraded to 3.7Ghz then single core test crashed the machine. Fail

Guest2 · 3 Dec 2020 at 15:09

deagle said:
Did you set the fabric voltages per DRAM Calc? When your event log (system) for WHEA errors.

This is in the AMD overclocking area of settings.
SoC voltage - 1100
VDDP - auto
VDDG CCD - 1100
VDDG IOD - 1100

However in OC these are the settings:

CPU NB/SoC voltage - auto
VDDP - auto
VDDG CCD - auto
VVDG IOD - auto

I have set them there to what i think PBO motherboard voltages set in the other area

Thanks

deagle · 3 Dec 2020 at 15:36

Can you post your DRAM Calc with current timings and the proper variables on the left side?

Guest2 · 3 Dec 2020 at 15:58

deagle said:
Can you post your DRAM Calc with current timings and the proper variables on the left side?

Sure, these were the original XMP timings

RAM was imported from XMP via Thaiphoon (Team Group TEAMGROUP-UD4-3600.html)

Now

pc-guy · 3 Dec 2020 at 16:04

you want to enable gear down mode

deagle · 3 Dec 2020 at 16:32

And probably back off on your VDDG and VDDP voltages. They should be at least 50vm under SOC. If you're getting WHEA errors I would also monitor your SOC droop and make sure your SOC LCC is set high enough.

Guest2 · 3 Dec 2020 at 17:40

pc-guy said:
you want to enable gear down mode

Why, i'm sure I set it to disabled upon recommendation from @MrPils based on setting CAS14 timings

Pils, can you remember if there was a reason to disable GDM? (or if I just accidentally disabled it)

deagle said:
And probably back off on your VDDG and VDDP voltages. They should be at least 50vm under SOC. If you're getting WHEA errors I would also monitor your SOC droop and make sure your SOC LCC is set high enough.

I have not changed VDDG or VDDP voltages. These have been left on auto

edit - I can run TestMem5 v0.12 without any errors and TechPowerUp MemTest64 v1.0 for around 4 hours with no errors

Guest2 · 3 Dec 2020 at 17:47

double post.. please ignore/delete

pc-guy · 3 Dec 2020 at 17:47

https://www.reddit.com/r/overclocking/comments/cuim9h/how_does_geardown_mode_improve_ram_overclock/

my understanding of GDM is it improve overclocking and stability

Guest2 · 3 Dec 2020 at 18:02

pc-guy said:
https://www.reddit.com/r/overclocking/comments/cuim9h/how_does_geardown_mode_improve_ram_overclock/

my understanding of GDM is it improve overclocking and stability

By cutting the speed in half by the sounds of it. I have a feeling the auto SOC, VDDG or VDDP may be too high.
PBO did an aweful job of over volting all cores so wouldnt be surprised if other voltages are similar.
Maybe the beta bios i'm using isnt great. That said, the non beta bios before it crashed on auto PBO XMP just running R20

MrPils · 4 Dec 2020 at 11:15

Guest2 said:
Why, i'm sure I set it to disabled upon recommendation from @MrPils based on setting CAS14 timings

Pils, can you remember if there was a reason to disable GDM? (or if I just accidentally disabled it)

I have not changed VDDG or VDDP voltages. These have been left on auto

edit - I can run TestMem5 v0.12 without any errors and TechPowerUp MemTest64 v1.0 for around 4 hours with no errors

Don't turn GDM on unless you have to, its slower. You do need to look at your SOC and VDDG voltages though, theyre a mess. You should have vDDG IOD at least 50mv below vSOC and vDDG CCD between 100 and 200mv below vDDG IOD. Example: 1.1vSOC, 1.05vDDG IOD, 850mv to 950mv vDDG CCD. Also make sure your vSOC LLC setting is on at least high if not its highest available setting - you don't want that voltage rail dipping under load.

pc-guy said:
https://www.reddit.com/r/overclocking/comments/cuim9h/how_does_geardown_mode_improve_ram_overclock/

my understanding of GDM is it improve overclocking and stability

In exactly the same way as running lower mhz or worse timings makes memory more stable - by being slower. With B-Die you may need GDM enabled with dual rank / quad rank setups (4 x 8gb or 2 x 16gb or 4 x 16gb) to get tight timings at 3800mhz. If your memory can run GDM disabled and remain stable you always should, at 3600mhz that should be fine.

Guest2 · 4 Dec 2020 at 11:25

MrPils said:
Don't turn GDM on unless you have to, its slower. You do need to look at your SOC and VDDG voltages though, theyre a mess. You should have vDDG IOD at least 50mv below vSOC and vDDG CCD between 100 and 200mv below vDDG IOD. Example: 1.1vSOC, 1.05vDDG IOD, 850mv to 950mv vDDG CCD. Also make sure your vSOC LLC setting is on at least high if not its highest available setting - you don't want that voltage rail dipping under load.

Thanks
This I don't understand because i'm sure I have not changed SOC or VDDG voltages.
I have reverted to XMP and all defaults and the following is set. Are the auto voltages incorrect?

MrPils · 4 Dec 2020 at 15:14

Guest2 said:
Thanks
This I don't understand because i'm sure I have not changed SOC or VDDG voltages.
I have reverted to XMP and all defaults and the following is set. Are the auto voltages incorrect?

If the readings in Zentimings for VSOC / VDDG IOD / VDDG CCD are correct then yes, the auto voltages set by the board are incorrect. To explain further:
Zentimings is showing your SOC is likely set to 1.1v with vdroop taking it down to 1.0875v - you should correct that with a higher LLC mode, this is normal behaviour and it should be set at 1.1v at your memory frequency but you don't want it to drop below the set voltage.
Zentimings is also showing your IOD and CCD voltages as 1.1v. These should not be set this high with vSOC at 1.1v, the IOD voltage should be 0.05v or more below vSOC and the CCD voltage should be 0.1v to 0.2v below IOD. As vDDG voltages are derived from vSOC they can never be higher than it.

Confirm whether these readings in zentimings are correct - you can use ryzen master to see what the chip is reporting its receiving but there's no more sure way than actually punching in the values manually.

Guest2 · 4 Dec 2020 at 15:48

MrPils said:
If the readings in Zentimings for VSOC / VDDG IOD / VDDG CCD are correct then yes, the auto voltages set by the board are incorrect. To explain further:
Zentimings is showing your SOC is likely set to 1.1v with vdroop taking it down to 1.0875v - you should correct that with a higher LLC mode, this is normal behaviour and it should be set at 1.1v at your memory frequency but you don't want it to drop below the set voltage.
Zentimings is also showing your IOD and CCD voltages as 1.1v. These should not be set this high with vSOC at 1.1v, the IOD voltage should be 0.05v or more below vSOC and the CCD voltage should be 0.1v to 0.2v below IOD. As vDDG voltages are derived from vSOC they can never be higher than it.

Confirm whether these readings in zentimings are correct - you can use ryzen master to see what the chip is reporting its receiving but there's no more sure way than actually punching in the values manually.

CLDO VDDP - 0.9002V
This is lower with XMP / default than I had before (where it was 1.0979V)

SOC in BIOS is auto and seen at 1.1V

Do you think I should leave default XMP timings until a new none beta bios is released hopefully later this month?

MrPils · 4 Dec 2020 at 16:02

Its the IOD / CCD voltages that are the issue, those are your fabric voltages. I can well see those being set to the same as your SOC voltage causing the weird stability issues - if they are actually set to that.

Guest2 · 4 Dec 2020 at 16:36

MrPils said:
Its the IOD / CCD voltages that are the issue, those are your fabric voltages. I can well see those being set to the same as your SOC voltage causing the weird stability issues - if they are actually set to that.

Could it be the BIOS thats setting these incorrectly?

This is BIOS

I did notice that re-entering into the VDDG menu it changes from auto to manual and has 1100 entered. This is with all settings left on auto (just XMP enabled)

pc-guy · 4 Dec 2020 at 16:53

he is using the same board as me, there is no control of VSOC PLL.

the X570 unify only has PPL on Vcore. no VSOC or DRAM PLL.

my vSOC is also set to 1.1 but it droops to 1.044V atm...might have to set to 1.15 or something to get it to 1.1V

Guest2 · 4 Dec 2020 at 17:24

pc-guy said:
he is using the same board as me, there is no control of VSOC PLL.

the X570 unify only has PPL on Vcore. no VSOC or DRAM PLL.

my vSOC is also set to 1.1 but it droops to 1.044V atm...might have to set to 1.15 or something to get it to 1.1V

Thanks. What about your CCD and IOD voltages? When Auto is set, they just default to manual 1100 on mine in BIOS

In Zen Timings then are now reporting different to before;
CCD 0.9002V
IOD 0.9002V

pc-guy · 4 Dec 2020 at 17:26

Guest2 said:
Thanks. What about your CCD and IOD voltages? When Auto is set, they just default to manual 1100 on mine in BIOS

i have set them manually. i always set them manually. they are at 1.0V both are the same in BIOS but Zentiming is not showing the CCD voltage. not sure why & VDDP is another 0.05V behind those CCD and IOD

actually i think my Vsoc is set @ 1.05V

i am still on BIOS A.60 and I am using Micro E-die (poor man's ram) not samsung B die

Guest2 · 4 Dec 2020 at 17:55

Mine default to this automatically (not my pic but the same)
https://imgur.com/a/sSizqPF