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  Topic Review (Newest First)
07-20-2019 12:59 PM
dlbsyst
Quote: Originally Posted by VicsPC View Post
I hope that's a typo lol. 1.65v is way too high for DDR4, max safe voltage is 1.55v and that's already limit. These are 1.35v kids, 200mv extra is quite a lot for RAM, unless you have it watercooled then it's still a big if. I'd run max 1.5v and i have run 1.45v for a year with tightened voltages.
Oops, yeah it was a typo. I meant 1.365 volts. Damn, I hope no one tried 1.65 volts. That would be bad.
07-20-2019 12:00 PM
VicsPC
Quote: Originally Posted by dlbsyst View Post
For anyone who has Flair X RAM and gets the C5 cold boot issue try this. It has helped me. Set your RAMs voltage higher. I have mine set to 1.65 volts at my RAMs 3200Mhz speed. Higher if you increase the speed. You'll have to play around to get it just right. Also set your boot up RAM voltage the same. Also, I disabled fast start in my BIOS as well as Windows. Currently I'm running my RAM at 3600Mhz. I forget the voltage I'm using and I'm at work right now but it seems stable. I have a lot more testing to do.
I hope that's a typo lol. 1.65v is way too high for DDR4, max safe voltage is 1.55v and that's already limit. These are 1.35v kids, 200mv extra is quite a lot for RAM, unless you have it watercooled then it's still a big if. I'd run max 1.5v and i have run 1.45v for a year with tightened voltages.
07-20-2019 11:20 AM
dlbsyst For anyone who has Flair X RAM and gets the C5 cold boot issue try this. It has helped me. Set your RAMs voltage higher. I have mine set to 1.365 volts at my RAMs 3200Mhz speed. Higher if you increase the speed. You'll have to play around to get it just right. Also set your boot up RAM voltage the same. Also, I disabled fast start in my BIOS as well as Windows. Currently I'm running my RAM at 3600Mhz. I forget the voltage I'm using and I'm at work right now but it seems stable. I have a lot more testing to do.
07-20-2019 10:59 AM
shilent Just got my 3700X installed yesterday and wanted to share what I got so far.

Currently using BIOS 7106 on a C6H and like most people mouse doesn't work in BIOS but it doesn't bother me as I've always hated using it in the BIOS anyway.

I seem to get the C5 or 07 error when messing with memory timings. I found it was when disabling Gear Down Mode. I need to keep this on Enabled or Auto. (I'm using GSkill TridentZ 3200 CL14 B-die).

Watercooled with a Heatkiller IV block I'm getting the advertised boost speeds, 4.4GHz single core (though mostly 4.35GHz), and 4.25GHz all core as long as it stays below 70C. Above 70C, all core is 3.9GHz. Max temp is 78C in Prime95 (my 1600x at 4GHz 1.375V was 68C max).

All core voltage seems high 1.35-1.39 according to CPU-Z, and up to 1.406 according to Ryzen Master. With AMD recommending 1.325V for all core, I decided to use a negative offset but doesn't seem to work right. I've just read the previous posts mentioning this could be fixed in BIOS 7201, so I'll give that a try today.

I did get an unusual crash while running Prime95 for about an hour, not sure if it's related to the 3700X. My screen was all blocky colors unable to read anything. I've never seen this happen for the two years I've owned this motherboard. I was able to ctrl-alt-del, so maybe it was video card related.
07-20-2019 10:16 AM
MegamanAT
Quote: Originally Posted by Takla View Post
I'm on 7201 too. Still broken for me. Board Revision is 1.03 (not that this would matter). Can you set the memory CAS latency lower than 16? for me it is stuck at 16 no matter if I use the d.o.c.p profile or if I enter the value manually. also, entering 14 instead of 15 will result in a black screen boot and can only be resolved by resetting via the cmos clear button.
same here with 3900x and Micron E.
07-20-2019 10:09 AM
Takla
Quote: Originally Posted by mvmiller12 View Post
I've not had issues setting CAS 14 and having it applied. I've had stability issues running my memory at CAS 14, but no problems getting the setting to take effect. My Hero is also rev 1.03. But I AM on 2700x's over here, and that might make a difference.
I thing that might be it than.
07-20-2019 10:02 AM
mvmiller12
Quote: Originally Posted by Takla View Post
I'm on 7201 too. Still broken for me. Board Revision is 1.03 (not that this would matter). Can you set the memory CAS latency lower than 16? for me it is stuck at 16 no matter if I use the d.o.c.p profile or if I enter the value manually. also, entering 14 instead of 15 will result in a black screen boot and can only be resolved by resetting via the cmos clear button.
I've not had issues setting CAS 14 and having it applied. I've had stability issues running my memory at CAS 14, but no problems getting the setting to take effect. My Hero is also rev 1.03. But I AM on 2700x's over here, and that might make a difference.

Side note: My Samsung B-Die 3200 DDR4-3200 sticks from Corsair have NEVER done CAS 14 with stability, but I always whip out the Ryzen RAM calculator and try the "safe" settings again after every BIOS update anyway.They are just not having it and fail Memtest86 Test 6 with hundreds of errors every time. Default DOCP/XMP 3200 CAS 16 works fine though. Another interesting thing is that I just got new Corsair Vengeance Pro DDR4-3600 CAS 18 RAM recently to go with my new-to-me Crosshair VI Extreme. It came in a few days before the Extreme arrived, so I popped it into the Hero for testing. That RAM ran perfectly fine at DOCP/XMP 3600 CAS 18 on the Hero with BIOS 7106, but is completely unstable on the Extreme at anything faster than 3200 with either BIOS 7106 or 7201... lots of errors in MemText86, Test 6. I used the recommended slots A2 and B2 on both boards, too.
07-20-2019 09:56 AM
domlator Hello all,

I will be getting 3900x for my C6H monday or tuesday so ill report my findings

Will be replacing my 1700 with this new beast. My memory is Gskill FlareX 3200, CL14 so i am hopping i won't have any issues with atleast keeping it on DOCP settings.

Anyway will report as soon as i get 3900x


Cheers
07-20-2019 09:50 AM
Takla
Quote: Originally Posted by mvmiller12 View Post
I've personally found offset voltages to be broken in 7106 on both my Hero and my Extreme with + and - offsets being reversed (actually, offsets were completely non-functional for me on the Extreme but others have said theirs worked, so... yay, Asus?). 7201 seems to have fixed these issues on both boards.
I'm on 7201 too. Still broken for me. Board Revision is 1.03 (not that this would matter). Can you set the memory CAS latency lower than 16? for me it is stuck at 16 no matter if I use the d.o.c.p profile or if I enter the value manually. also, entering 14 instead of 15 will result in a black screen boot and can only be resolved by resetting via the cmos clear button.
07-20-2019 09:43 AM
mvmiller12
Quote: Originally Posted by Takla View Post
Ok I'm back from testing voltages offset. And yep, as already said, it is the same as setting a "manual" voltage on the crosshair 6 hero of mine. Always annoying to test things with these beta bios since I once again had to clear cmos to revert to defaults to boot which of course deleted my perfectly set up profile. So yeah, if you use the crosshair 6 hero and a ryzen 3000 cpu, use the manual voltage since offset is broken atm.
I've personally found offset voltages to be broken in 7106 on both my Hero and my Extreme with + and - offsets being reversed (actually, offsets were completely non-functional for me on the Extreme but others have said theirs worked, so... yay, Asus?). 7201 seems to have fixed these issues on both boards, at least for me.
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