10-04-2022 06:30 AM - edited 10-18-2023 07:20 AM
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:
110000
instead of 0011000
after selection press downcore apply changes or discard if made mistake
ocpak/octools
FAQ:
7950x not boosting pass 5.5G -> check that CStates is not disabled
Detailed Explanation on CState Boot Limiter
Test BIOSes:
new:
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
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.
Solved! Go to Solution.
03-15-2023 03:56 PM
andino wrote:
Reverted back to 1001 and USB issues are still there.
03-15-2023 06:08 PM
andino wrote:
Reverted back to 1001 and USB issues are still there.
03-15-2023 09:33 PM
03-15-2023 11:59 PM
03-16-2023 12:12 AM
03-16-2023 12:22 AM
03-16-2023 03:59 AM
03-23-2023 04:43 AM
Upgrading from 922 to 1002 allowed me to use MCR (with power down enabled) for the first time (running ROG CROSSHAIR X670E EXTREME with R9 7950X and 2x32 G.SKILL 6000MHz CL30 Trident Z5 - XMP memory).
The issue with memory errors immediately after power on (after leaving PC off for prolonged time) is still present. I'm using following timings (most inserted manually in BIOS using new DOCP Tweak mode).
When I power on the PC and boot straight into memtest86+ I get few memory errors at first with no additional errors afterwards (even after reboots and brief power offs etc.) and the machine is stable.
03-23-2023 10:42 AM
Does windows BSOD instantly or does it just not boot into the OS?
For MCR, I had a similar issue on my board (X670E TUF wifi) and I eventually found that theres two MCR options, one in the AI tweaker area and one in the Advanced options. When I'd enable the MCR option through the advanced area, windows instantly gives a memory management BSOD regardless of what I had for EXPO while through AI tweaker (Extreme tweaker on your board), it's been going for the past 3 days without so much as a hitch including no errors on an overnight memtest86 and a 5 hour HCI memtest. You could try switching to the other one depending on which one you're currently using. (I'm not entirely sure what your motherboard bios looks like but assuming it's mostly the same, in Ai Tweaker/Extreme tweaker go to the DRAM Timing Control and scroll quite far down and you'll find the first MCR option in there. For the Advanced options one go to Advanced, then AMD CBS, then to UMC Control then I believe it was under memory features or a similar label but once in UMC control it's not too hard to find the second MCR option.) (ps sorry for the incomplete set of instructions for the advanced settings I'm just not near my PC rn)
As an add on, the link below has some other BIOS revisions for a whole bunch of motherboards including yours if you want to try any of those.
03-23-2023 11:07 AM
Thanks, for the reply. I could try 1003 I suppose.
I should clarify, that the memory errors do happen *ONLY* immediately after the boot after the PC is off for quite long time before that (such as power on after sitting off over night). It is also independent from MCR - it happens with it on or off.
Crucially, the errors are really time or temperature dependent because if I power on the PC and let it sit idle in bios and then boot into memtest86+ (after 1 min or so) I get no errors at all. Similarly it doesn't happen after restarts or brief power off (or even cutting the power to the machine). And when I let memtest86+ running for a while (after getting few initial errors) additional errors won't appear after that.
I usually let machine sit for a minute so that I don't get BSODs and ruin my Windows install. However, I got also no-post few times.
To summarize, it doesn't seem like general memory instability as I would expect that to be happening in normal usage (or over time during long memtest runs).