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ROG Crosshair VI overclocking thread - Page 1022

post #10211 of 17527
Quote:
Originally Posted by gupsterg View Post

@bluej511

I guess we just gotta find/use what work best for our setup.

I'm done on CPU/RAM OC, I do not care if boot issue for 3200MHz get resolved, just gonna use sleep/wake mode.

My only thing on wish list is UEFI allow SIO CPU Sensor mode change. So I don't need the app in OS startup that Elmor posted to remove +5°C offset.

Just gonna now use PC rather than tinker.

Yea i think you did a fresh install of w10c right? I just updated over anniversary so could be why it corrupted itself, im download right to my usb gonna fresh install. Im gonna have to deal with windows not activating again but wtv. Origin is so stupid with new windows installs too never finds my games even though theyre still installed lol. Its the 21st even uplay allows you to find already installed games.
    
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post #10212 of 17527
Quote:
Originally Posted by Kildar View Post

Tried every setting in ProcODT and still have F9 08 at cold boot.

43.6, 48, 53.3, 60 and 68.6 Boot fine from Warmboot.

Boots to safe mode 2133.

Reboot works fine though.....

Try 108 BCLK and 36X for 3886 OC worked for me and also gave my ram 3168Mhz


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post #10213 of 17527
Tried every ohm setting 80 and under no dice past 2666
post #10214 of 17527
Quote:
Originally Posted by Azzitude View Post

Try 108 BCLK and 36X for 3886 OC worked for me and also gave my ram 3168Mhz



I don't have any issue with 3800 MHz overclock or 3200 MHz RAM.

It's the cold boot crap!!!
post #10215 of 17527
Quote:
Originally Posted by nycgtr View Post

Tried every ohm setting 80 and under no dice past 2666

Try very loose timings, once you get things booting you can tighten them. Even so, not all RAM is going to be able to train in the 3200 strap right now, so increasing BCLK might be easier for you.
    
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post #10216 of 17527
Quote:
Originally Posted by Kildar View Post

I don't have any issue with 3800 MHz overclock or 3200 MHz RAM.

It's the cold boot crap!!!

I am not seeing that issue on mine using 1002 Bios
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post #10217 of 17527
Quote:
Originally Posted by r4m0n View Post

Try very loose timings, once you get things booting you can tighten them. Even so, not all RAM is going to be able to train in the 3200 strap right now, so increasing BCLK might be easier for you.

I set timings to auto, maybe that wasn't a great idea. I was just aimming for 2933 lol. I can do 3200 with a blck and cl 16 but it messes with my sli rolleyes.gif
post #10218 of 17527
For anyone curious what the difference is between TXp and Ti on Ryzen.

Ti





TXp


post #10219 of 17527
Quote:
Originally Posted by Kildar View Post

I don't have any issue with 3800 MHz overclock or 3200 MHz RAM.

It's the cold boot crap!!!

in bios under tweakers paradise - Digi+

DRAM VBOOT mine is set at 1.38

also in that section I'm at Level 4 and extreme settings if that helps
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post #10220 of 17527
Quote:
Originally Posted by 1TM1 View Post

You should focus on true metrics (such as time), that's where the large percentage differences are.
Benches such as (http://forum.hwbot.org/showpost.php?p=479666&postcount=22) show only 1% difference between 2933 and 3200.
Latency time makes a bigger difference.
11 / 2.400 =4.58 nanoseconds
12 / 2.400 =5
14 / 2.666 =5.25
14 / 2.933 =4.77
14 / 3.200 =4.375
16 / 3.200 =5
16 / 2.933 =5.455 ns

Find the best latency your memory can do at 2933 or 2666 or 2400; it may give a better time that what it can do at 3200.
Also keep in mind that above 2400 the CL latency is even, so only 12, 14, 16 clock cycles. 15 gets rounded up to 16.
That is not accurate.
I hope this displays correctly:
Code:
Data Rate    CAS Latency      1st Word (ns)  4th Word (ns)   8th Word (ns)
2933            16              10.91           11.93           13.30
2666            14              10.50           11.63           13.13
2400            12              10.00           11.25           12.92
3200            16              10.00           10.94           12.19
2400            11               9.17           10.42           12.08
2933            14               9.55           10.57           11.93
3200            14               8.75            9.69           10.94

Memory speed is more important than latency for Ryzen because the Infinity Fabric connecting the CCXes runs at the DDR4 Command Rate.
So higher memory speed = faster communication between the CPU cores.
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