Overclock.net › Forums › AMD › AMD Motherboards › ROG Crosshair VI overclocking thread
New Posts  All Forums:Forum Nav:

ROG Crosshair VI overclocking thread - Page 948

post #9471 of 17565
Updated C6H from 0702 to 1002. 0702 ran fine to 4100 MHz and my 3200-16 Hynix-M memory at 3200-16.
With 1002 it ran as follows at 4000 MHz:
2133 ram ok
2400 with boot cycle ok
2666 no go
2933 no go
3200 not tested
Set core to 1.35V, SOC=1.1, DDR 1.35, timings 16-16-16-36
2133 ok
2400 ok
2666 no go
2933 no go
3200 no go
Edited by 1TM1 - 4/17/17 at 10:53pm
post #9472 of 17565
Quote:
Originally Posted by OnSync View Post

In what tests do you see 95C on TCTL? I've only runned Cinebench test and my TCLT is 75C.

Just like the screen shot shows, it is running Cinebench. I never see anything over @ 78'C at 41 x100 @ 1.42v, but when I run 30.75 x 135mhz (or a 123mhz, or 144 BCLK) the temps will hit 95'C tclt.
post #9473 of 17565
Quote:
Originally Posted by 1TM1 View Post

Update from 0702 to 1002

Despite my experience telling me not to take irreversible steps I updated to Bios 1002 today. 0702 ran fine to 4100 MHz and my 3200-16 Hynix-M memory at 3200-16.
With 1002 it ran as follows at 4000 MHz:
2133 ram ok
2400 with boot cycle ok
2666 no go
2933 no go
3200 not tested
Set core to 1.35V, SOC=1.1, DDR 1.35, timings 16-16-16-36
2133 ok
2400 ok
2666 no go
2933 no go
3200 no go

Can someone please PM me a link to 0702?

don't have 0702, but 0902 is on the website. Have you tried 0081/82/83? it makes huge improvements in memory. Also... is 0702 1T or 2T... 1002 is a 1T bios, you might need 1001 which is a 2T bios.
post #9474 of 17565
double post, sorry
post #9475 of 17565
Quote:
Originally Posted by GoneToPlaid View Post

The 95C throttling gets turned off if you are in overclocking mode - however, you have to set the frequency higher than the base frequency (3.6 GHz in your case for the 1800X) to enter overclocking mode. The BCLK overclocking is throwing the system off.

You have to set the FID to at least 145 (3.625 GHz) to turn off the throttling, REGARDLESS of where your BCLK is set.

You can run an experiment at FIDs of 144 and 145 to validate what I am saying - 144 should throttle, 145 should not. Let me know if you are able to verify this. My system behaves this way.

Yes.. I can confirm it. You nailed it.

OK... so... I guess I have to work on the 3200 strap.

BTW... awesome User name thumb.gif
post #9476 of 17565
W00t!



Validation:

http://valid.x86.fr/q0n4fa
Edited by Gadfly - 4/15/17 at 11:24am
post #9477 of 17565
Quote:
Originally Posted by Gadfly View Post

Yeah makes sense.

This is an 1800x, and it throttles at 95'C Tctl, so at 75'C actual temps; which is gimping the hell out of me. Basically I have to yank another 10'C off the die with outragous cooling so it will not throttle at 3.9ghz+ with a BCLK OC

Sadly.. I don't have the IHS info, but I will get it when I put all this in the case. I purchased it from Silicon Lottery as a 4.1ghz binned CPU.


Here's the thing. Silicon Lottery uses like 1.44V and LLC3 which will pass their 1 hour Realbench stress test. I also have an 1800X that will do that, but the problem is try a REAL grueling stress test like Intel Burn Test Maximum. I'm not even stable at 3.9ghz and 1.4v yet. Still trying to find passing mhz and volts for this test and my H100i.
post #9478 of 17565
Quote:
Originally Posted by Gadfly View Post

Yes.. I can confirm it. You nailed it.

OK... so... I guess I have to work on the 3200 strap.

BTW... awesome User name thumb.gif

Glad that worked! Looks like you got cracking on the 3200 strap lol

Just remember, the only protection you have when you're in overclocking mode is thermal shutdown of the system. It will protect you, but it will turn the system off when it gets too hot! Having the throttling on isn't all bad ...
post #9479 of 17565
Quote:
Originally Posted by Gadfly View Post

Anyway... Validations w/ Bench for anyone that is interested:

4.150 @ 3600 DDR4 1.4v http://valid.x86.fr/alj9hi
4.2 @ 3200 DDR4 1.42v http://valid.x86.fr/frpq9b

Cheers

Great chip you got there! Are you using LLC 3?
post #9480 of 17565
So, after yesterday I grew balls and put my DMM to the CPU core diodes or whatever they are on the back of the board.

I was seeing a Vdrop that was pretty big when I went from idle to load, and LLC 5 seemed to fix. Today I checked with a DMM. LLC5 actually had my measured voltage higher than it was set, LLC4 was the closest with 1.385V idle and 1.388V load.

I proceeded to try and get a good OC, seems I can be stable with 3.925GHz and +0.025V. With that Vcore is 1.417V, SVI2 1.375V idle and 1.369V load, DMM behind socket measures 1.40V idle and load.

Not feeling comfortable adding more voltage. Looks like I got a nice turd in the silicon lottery when I compare it to what other people get.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD Motherboards
Overclock.net › Forums › AMD › AMD Motherboards › ROG Crosshair VI overclocking thread