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ROG Crosshair VI overclocking thread - Page 1156

post #11551 of 16971
Quote:
Originally Posted by Timur Born View Post

I am using 103.2 BCLK and can happily use P-state VID in both BIOS and ZenStates (0.2), including offset. BIOS 0003 here.

Furthermore I do not specifically disable Core Performance Boost and do not see my CPU change frequency higher than what I have set in BIOS (neither using fixed OC or using P-state OC). Frankly, I would be happy if it did that, because then it would use 4.1 Ghz for 1/2 core tasks instead of just using 4.0.

On a side note: I just passed 10 loops of ITB AVX at 4.0 + 3300-CL14 after decreasing SOC to 0.95 V via offset. Let's try to lower VDDP a notch more and then see if I can squeeze more power-saving out of it during idle times (60 W idle still is a bit excessive wink.gif).

CPB is disabled when CPU enter OC mode regardless of setting of CPB. So if you are on x OC then you will not see PB/XFR boost occurring. Yes it would be nice to have some elements of default boost method on OC.

Why it benefited me to disable CPB is when memory training fail, when using PState OC with offset mode voltage:-

- AMD CBS is reset.
- Extreme Tweaker page is not.
- CPB [Auto]/[Enabled] the CPU will do PB/XFR, even in UEFI.

So CPU will hit ~1.35V and add in the offset on Extreme Tweaker page that did not reset = ~1.5V.

When above happen and CPB is disabled, then PB/XFR not active. CPU only go to base clock, on my R7 1700 = 3.0GHz, ~1.000V, add offset from Extreme Tweaker = ~1.162V.
Edited by gupsterg - 4/26/17 at 1:49am
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post #11552 of 16971
That's 60 W average (idle) for the whole system on the wall. Using the Power Safer profile it drops to a minimum of 53 W. Since I am currently using a high running fan-profile I can likely shave off a few watts when the fans slow down. The graphic-card draws at least 10 W on its own, so it's not a bad value. I just need to see if I can drop it another few watts for those days when I leave the PC running (or set up my router to do WOL).
Edited by Timur Born - 4/26/17 at 1:50am
post #11553 of 16971
Quote:
Originally Posted by digitalfrost View Post

I'm wondering what kind of Vdroop you get in IBT and RealBench, what's your effective Vcore? I crash in these test but I get severe Vdroop. So I'm wondering, do you have a lower leaking chip?
On my 1800X at 4.0 GHz I need 1.306 - 1.312 V after droop to run IBT AVX errorfree. This is without RAC OC, though. If I combine CPU with RAM OC I need to add another +0.025 V VCore and VDDP and on top of that. VDDP may even need +0.04 V, still testing.
post #11554 of 16971
Quote:
Originally Posted by gupsterg View Post

CPB is disabled when CPU enter OC mode regardless of setting of CPB. So if you are on x OC then you will not see PB/XFR boost occurring. Yes it would be nice to have some elements of default boost method on OC.
I understand now, albeit I don't worry so much about short bursts of 1.5 - 1.6 V. 1.5 V XFR bursts can happen at stock settings, so the CPU seems to be made for it.
post #11555 of 16971
Cool smile.gif .
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post #11556 of 16971
Quote:
Originally Posted by Timur Born View Post

On my 1800X at 4.0 GHz I need 1.306 - 1.312 V after droop to run IBT AVX errorfree. This is without RAC OC, though. If I combine CPU with RAM OC I need to add another +0.025 V VCore and VDDP and on top of that. VDDP may even need +0.04 V, still testing.
Very interesting thanks. I need 1.38125v for normal stability, but IBT needs 1.425v. I did already test my OC with RAM at stock speeds using x264, but it didn't make a difference there.

Might re-test IBT and play with VDDP and SOC voltage.
post #11557 of 16971
Remember I meant "1.306 V after droop", so my Vcore setting is considerably higher to begin with. Currently I am running a +0.075 V offset LLC0 for 4.0 + 3300-CL14, which corresponds to 1.425 V idle and 1.331 - 1.337 V (SVI2) ITB AVX load.
Edited by Timur Born - 4/26/17 at 2:31am
post #11558 of 16971
Quote:
Originally Posted by Timur Born View Post

I am using 103.2 BCLK and can happily use P-state VID in both BIOS and ZenStates (0.2), including offset. BIOS 0003 here.

PState 0 VID edited in AMD CBS within UEFI for an increase is working on 0003?

If so I'm leaning more and more to try 0003 today.

As I don't wish to be using offset mode on Extreme Tweaker. As that is basically a "global" offset applying to all states. I could modify PState 2 on 0902 to bring idle vcore down but can not on newer UEFIs. No UEFI so far has worked correctly for increased VID in PState 0 for me either.
XPS - R7 1700
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XPS - i5 4690K
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XPS - Q6600
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CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus Crosshair VI Hero Sapphire Fury X@1145/545 G.Skill Trident Z 2x 8GB 3200MHz C14 
Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
CaseMouse
SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
i5 4690K@4.9GHz 1.255V Asus Maximus VII Ranger Sapphire Fury X@1145/545 HyperX Savage 2x8GB 2400MHz C11 
Hard DriveCoolingOSMonitor
Samsung Evo 840 TR Archon SB-E X2 Win 7 Pro x64 / Win 10 x64 Asus MG279Q 
KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
Intel Q6600 G0 Asus P5K Premium Black Pearl Sapphire Toxic HD5850 Corsair Dominator 4GB 
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XPS - R7 1700
(14 items)
 
XPS - i5 4690K
(12 items)
 
XPS - Q6600
(8 items)
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus Crosshair VI Hero Sapphire Fury X@1145/545 G.Skill Trident Z 2x 8GB 3200MHz C14 
Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
CaseMouse
SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
i5 4690K@4.9GHz 1.255V Asus Maximus VII Ranger Sapphire Fury X@1145/545 HyperX Savage 2x8GB 2400MHz C11 
Hard DriveCoolingOSMonitor
Samsung Evo 840 TR Archon SB-E X2 Win 7 Pro x64 / Win 10 x64 Asus MG279Q 
KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
Intel Q6600 G0 Asus P5K Premium Black Pearl Sapphire Toxic HD5850 Corsair Dominator 4GB 
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Crucial MX 100 256GB TR TRUE Rev.A Win 7 Pro x64 Cooler Master V650 
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post #11559 of 16971
Hello. I actually have an Gigabyte Ab350 Gaming 3. If i buy a C6H, my OC will be improved ? Actually i can reach 3,9ghz max with v1,41, but VRM are not properly cooled. Thanks
post #11560 of 16971
Quote:
Originally Posted by gupsterg View Post

PState 0 VID edited in AMD CBS within UEFI for an increase is working on 0003?

If so I'm leaning more and more to try 0003 today..
So you mean higher than 1.35 V? Seems like I misunderstood you there, but I will give it a try and report back.
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