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X670 resource


ill use this thread to collect some new test bioses for the boards, maybe also to explain some less understood options

to disable cores ccd go here and choose ccd xx bit map down core.
each ones stand for an enabled core
best to disable from the back, ie:
instead of 0011000
after selection press downcore apply changes or discard if made mistake


7950x not boosting pass 5.5G -> check that CStates is not disabled
Detailed Explanation on CState Boot Limiter

Test BIOSes:

X3D OC Preset for those MB with asynch BCLK Support: (for simple slight perf boost for X3D)

DOCP/EXPO Tweaked: (for simple timings tightening)

strixe-e 1515 

strixe-f 1515 

strix e a 1515 

crosshair hero 1515 

crosshair gene 1515 

crosshair extreme 1515 

creator 670 1515

creator b650 1515

strix 650E I

strix 670 itx



for crosshair and strix e-e:

explanation of segment2 Loadline:


customize a heterogenous loadline for a dual segment workload range.

example above shows loadline=L6 when current is in range of 0~40A, and Level4 when current is above 40A.




Adds for x3d

dynamic ccd priority switch with core flex, os / driver agnostic so win10 win11 ok



Algo as follows:
If condition reached and ccd0 specified, then check current mem/cache activity > threshold and hysteresis reached, if fulfilled then switch
If condition reached and ccd1 specified, then check current mem/cache activity <=threshold and hysteresis reached,, if fulfilled then switch
Default hysteresis =4

Can combine multiple algos for ccd priority so combinations are wide

works on non x3d too but of course senseless on it. detailed explanation here.

2,054 REPLIES 2,054

Just restore defaults. Too aggressive OC does affect onboard hardware 🙂

While that might be true, it wouldn't explain why the problem exists only when cold booting. Never had a problem no matter the use case (benchmarks, games, large network activity, video edits etc).

Do you use memory context restore crap ?

Of course I do 🙂 Is there anyone here willing to wait 60+ seconds ? 2023 and we have slower boot times compared to a Windows 95 PC ...

Here's your answer.

BTW we are many to avoid MCR for solid reasons, if you don't want to wait then don't shutdown your PC.
Mine is always on.

Are you using Auto or Disabled ? For MCR.

MCR disabled of course, I want my RAM to be trained each time I have to reboot for rock stable OC.

And actually I reboot at least once a day to fine tune my per core CO, boot time is around a minute but I don't care as soon as I've stability.

It's nothing compared to my first computers (first one was 486 with famous turbo switch 😁)

For the unaware ones, Turbo button fixed the clock speed slower, for comparability with older software that relied on a fixed CPU timing.

😂 I know, I had that too.
I'll try with MCR disabled and report back. If it's related then at least I'll know what I'm looking for, lol.

Have you fixed your issue ?