Showing results for 
Search instead for 
Did you mean: 

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.

2,404 REPLIES 2,404

Level 10

X670E-I: Bootloop. Probably also related to iGPU since I disable it in BIOS/UEFI.

Same with disabled igp

Level 7

Same thing when I disable IGP in bios - Windows boot and reset loop.

Level 8

Hmm.  I, too have my iGPU disabled, since Windows kept installing new drivers for it that conflicted with the radeon Adrenaline drivers for the GPU card.  Maybe I'll have to wait for the next bios and see if it causes the same problems for people.  Thanks for the heads-up.

You can disable in Windows update ability to install drivers. 

Level 11

I’m sorry but 2003 BIOS on 670E Extreme is ******. Can’t even navigate bios without locking up after 10-15 seconds. 

and that’s with “defaults”. 

Level 10

The new BIOS is a buggy mess. 😞

Level 10

Is there a downside to leave iGPU enabled even though I have a dGPU?

In the past, not having disabled iGPU and having and nvidia GPU caused steam to load very slowely. Like a minute or two. Not sure if this was fixed or not since and if you have AMD primary GPU, but I know with my 3070 there were issues. I since switched to Asus TUF 7800 XT so who knows. I'll just wait for the new BIOS and disable it as there is basically no reason to have it enabled.

Level 10

Bioses are EDITED few hours ago to 2003 from v2001/2002 ? Any changes ?