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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.

2,272 REPLIES 2,272

zedcrown03 wrote:
When i use 0801 bios,PBO/PBO2 is very stable
But,the same settings on 0803 bios,PBO/PBO2 is very unstable (In particular, turn on the medium load option)
0803bios mem oc is better than 0801,but i want 0803 PBO/PBO2 to be stable.please

also having this issue on 0803 strix wrote:
also having this issue on 0803 strix

Just for data purposes, having the same issues on the Hero.

Level 7
Rolled the Hero back to 0801, 0802 and 0803 gave me Windows Hardware Errors and would drop the GPU on boot or crash the GPU connection mid-game. Not an issue with 0801. Using ASUS ROG RTX 4090 too...

i notice that 0705 bios when i run fclk 2166,mem 6400mhz,uclk will be 3200mhz,it's stable
but when use 080x(0803/0802/0801) bios,when i run fclk 2166,mem6400,
uclk will be 3250mhz,,why???
i set 1:1,but its 3250mhz,and very unstable.

good luck guys, iam out.
sent my asus board back, got an x670 aorus elite ax.

resync50000 wrote:
good luck guys, iam out.
sent my asus board back, got an x670 aorus elite ax.

And work better now?

Tsikos wrote:
And work better now?

PMed you

I got the same one and it's working perfectly!

@Shamino thanks for the X670e-i BIOS. I flashed it this morning. Unsure what was changed, but latency and memory read/write speeds are much better than the original 0809 BIOS. I will have to play with it more later.

Level 10
So i made a telegram group to talk about our problems and find solutions!