05-09-2017 02:36 AM
05-09-2017 04:04 AM
05-09-2017 05:01 AM
05-09-2017 05:25 AM
DJ Bully wrote:
Hi Thanks for the reply, I am @ 1.05 approx on SOC voltage, I keep seeing post's saying not to go too high with that so am trying to be cautious.
I hear up to 1.2 is ok?
I may have a play later on, i'm using +offset function with LLC lvl4.
05-09-2017 06:05 AM
My C6H when i use DOCP 3200mhz auto up to 1.22v , may be you should try, i think it's ok
//Sorry about my bad english
05-09-2017 09:01 AM
05-25-2017 01:12 AM
05-25-2017 05:51 AM
DJ Bully wrote:
entropic-remnants, thank you for your advice.
I have now got my RAM back @ 2933 18-14-14-14-34
It was indeed the ProcODT setting that made it happen.
I managed to boot into bios with 60 or 68.6 ohms, but they turned out to be unstable. I went up to 80ohms and now it is solid as a rock! FYI my RAM part no. is in my profile.
Really happy now 🙂
Is there any reason I should change to the 99xx BIOS's? My RAM is now more or less at rated speeds (3000) .
Thanks again for the assistance, took me a while to get there but got it in the end!
05-09-2017 05:07 AM
05-09-2017 05:16 AM
I only get to 3200 on my RAM by using a 2666 memory speed and bumping the Bclk to 120. Then it all works but there's another wrinkle in 1107.
In the advanced menu in the BIOS, under the AMD CBS and the ZEN UMC sub-menu's is an entry called ProcODT -- are you familiar with it? It's a necessary termination impedance in the memory controller that has to match the source impedance of the memory itself. From what I'm reading, the default for that changed from 1002 to 1107 and if there is no specific one for your memory in a table, that could well affect your ability to hit 2933.
The default may be 53.x ohms, or 80 ohms -- not sure. My DIMM's require a ProcODT of 68.6 ohms to work properly.
A couple of things: that setting resets automatically and without warning when you get it wrong, so if you go in and it's on Auto again, try a different value. Also watch out that your memory timings don't get reset when you select a different memory speed.
If you were able to run at 2933 before without a Bclk increase, it's possible the only thing you need is a good ProcODT to get back where you were. Unfortunately, the only way to find the correct one is by trial and error and the people who know say to run HCI Memtest after you think you have it right to make SURE it's a good value.
Also note: when you change ProcODT and go to save and reset out of the BIOS, it won't show as a changed setting -- that's normal.