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post #20971 of 22515
Quote:
Originally Posted by MIXEDGREENS View Post

Don't know why I expected those tertiaries to hold, but they were fun while they lasted. Fundamental theory behind my IMC voltages seems sound though.

Mind explaining what your theory is? Seems to me that it should be highly unstable that way.
post #20972 of 22515
Quote:
Originally Posted by tolis626 View Post

Mind explaining what your theory is? Seems to me that it should be highly unstable that way.

I did some intentionally low vcore testing a long time ago and noticed that my IMC loves a .007v offset for some reason. And aerotracks mentioned some time ago that some IMCs love equal IO offsets, while others prefer analog to be 1-5mv higher than digital. Poring over my list of IMC voltage sets that work, it seems my IMC likes vSA offset to be a multiple of 7, IOD to be 2x my vSA offset, and IOA 5mv higher than IOD.

Not all sets are stable, but they all boot and run HCi for a while, which is more than I can say for most combos. The proof of concept showed that the inverse relationship works too: vSA - (7x6), IOD - (7x3), IOA - (IOD + 5).

Tertiary timings are really crazy. WRRD seems to have a strong preference for specific IOLs, and the WRRDDR and WRRDDD have a relation to IOL that I think is IOL+1, at least in my specific case.

There are some other peculiarities which might be false patterns. VCCIN and vDIMM seem to prefer both being odd or even, even core multipliers definitely prefer even cache multis, and I think my 2800mhz ram prefers odd cache multis. Since my core seems to absolutely demand 1.35v or more for 46x anyway I've given up on it and am trying to find minimal stable voltages for 45x core 41x cache for my 24/7 OC.

edit: For those of you who actually know what you're doing, please be gentle on any corrections. I am in no way presenting my "findings" as facts, or saying they should work for anyone else.
post #20973 of 22515
Hi
First, im from Germany and i try my English as good as i can! rolleyes.gif

My Specs:
Asrock Fatality Killer H97 (Non-Z OC) mit Intel 4790k Air Cooled with Thermalright Machno 2
Asus ROG OC 1080 GTX
32GB Ram
256GB Crucial MX200 SSD
Asus Xonar D2

My Questions:
Is the max vcore shows in CPUZ 1.198v ok? (STOCK 4.0Ghz/Turbo on all Cores enabled 4.4Ghz)
What is essentially to me for Overclocking?
I want to go 4.7Ghz first but i dont know so much about all the vcores and vid values.
I hope someone can commit me.
post #20974 of 22515
There are overclocking guides for those new to OC, look at Z87 and Z97 overclocking guides, search.
You will not be able to OC almost anything on H97, BCLK overclocking makes other parts unstable and if you're lucky +5% is the max you may get.
post #20975 of 22515
I can change the multiplier!
post #20976 of 22515
do you think it is worth for me (mostly gaming) to switch to x99 and 5820k? I'm running 1080 sli currently and can see huge performance boost of having 16x/16x in tomb raider for example compared to 8x/8x ?
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i7 8700k @ 5.2Ghz asus maximus hero X Z370 EVGA FE 1080Ti 2050/5800 32gb g.skill tridentZ RGB 3600@4133 
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CM Storm QuickFire XT corsair ax1200i corsair carbide 540 Roccat Pure Optical 
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CPUMotherboardGraphicsRAM
i7 8700k @ 5.2Ghz asus maximus hero X Z370 EVGA FE 1080Ti 2050/5800 32gb g.skill tridentZ RGB 3600@4133 
Hard DriveHard DriveHard DriveHard Drive
3x WD Caviar Black 4TB Samsung 960PRO NVMe 512gb Samsung 960EVO NVMe 512GB Sandisk Ultra II 1TB 
CoolingOSMonitorMonitor
1x corsair h115i, 1x h90 Win10 x64 pro ASUS ROG PG279Q Gsync @ 165hz 2x Qnix 2710 Evo II @ 120hz  
KeyboardPowerCaseMouse
CM Storm QuickFire XT corsair ax1200i corsair carbide 540 Roccat Pure Optical 
Mouse PadAudioOtherOther
Roccat Taito asus xonar DX 7.1 KS8000 65 Zoll 4k SUHD Samsung Tab Pro 8.4 
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post #20977 of 22515
Quote:
Originally Posted by v1ral View Post

do you think it is worth for me (mostly gaming) to switch to x99 and 5820k? I'm running 1080 sli currently and can see huge performance boost of having 16x/16x in tomb raider for example compared to 8x/8x ?

It could be worth it (see large gains here ) but I think you would even need a 5930K since the 5820K only supports 28 lanes which is not enough for x16 + x16.
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4770K @ 4.5Ghz @ 1.38v delidded Gigabyte GA-Z87X-OC f9c 2 x Zotac 980Ti Amp Omega @1530, @1530 G.SKILL TridentX 2400 CL10 
Hard DriveHard DriveOptical DriveCooling
Samsung 830 256GB 4 x Samsung EVO 850 1TB RAID0 Samsung Blu Ray Cooler Master Seidon 240M 
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AntiAlias
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CPUMotherboardGraphicsRAM
4770K @ 4.5Ghz @ 1.38v delidded Gigabyte GA-Z87X-OC f9c 2 x Zotac 980Ti Amp Omega @1530, @1530 G.SKILL TridentX 2400 CL10 
Hard DriveHard DriveOptical DriveCooling
Samsung 830 256GB 4 x Samsung EVO 850 1TB RAID0 Samsung Blu Ray Cooler Master Seidon 240M 
OSMonitorKeyboardPower
Windows 7 Professional 64 bit Samsung 27" IPS 2560x1440 Logitech Wireless Seasonic Platinum 860 
CaseMouseAudio
NZXT Phantom 630 white Razer ASUS Xonar U7 external 
CPUMotherboardGraphicsGraphics
7700K@5Ghz ASUS ROG STRIX Z270F Asus 1080Ti FE Gigabyte 1080Ti FE 
RAMHard DriveHard DriveOS
Corsair Vengeance LED 32GB (4x 8GB) DDR4 3400MH... Samsung 960 EVO 500GB 4 x 1TB 850 EVO SSD RAID0 Windows 10 Pro 64 Bit 
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LG 27MU67-B 4K BeQuiet Straight Power 10 800W anidees AI-Crystal black 
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post #20978 of 22515
the link there shows only the difference between the bridges and 2.0 and 3.0. not 8x/8x and 16x/16x

but yea I'd need a 5830k at least you are right....
Rig
(24 items)
 
  
CPUMotherboardGraphicsRAM
i7 8700k @ 5.2Ghz asus maximus hero X Z370 EVGA FE 1080Ti 2050/5800 32gb g.skill tridentZ RGB 3600@4133 
Hard DriveHard DriveHard DriveHard Drive
3x WD Caviar Black 4TB Samsung 960PRO NVMe 512gb Samsung 960EVO NVMe 512GB Sandisk Ultra II 1TB 
CoolingOSMonitorMonitor
1x corsair h115i, 1x h90 Win10 x64 pro ASUS ROG PG279Q Gsync @ 165hz 2x Qnix 2710 Evo II @ 120hz  
KeyboardPowerCaseMouse
CM Storm QuickFire XT corsair ax1200i corsair carbide 540 Roccat Pure Optical 
Mouse PadAudioOtherOther
Roccat Taito asus xonar DX 7.1 KS8000 65 Zoll 4k SUHD Samsung Tab Pro 8.4 
OtherOtherOther
HTC Vive PS4 Pro, Xbone S maxnomic classic office 
  hide details  
Reply
Rig
(24 items)
 
  
CPUMotherboardGraphicsRAM
i7 8700k @ 5.2Ghz asus maximus hero X Z370 EVGA FE 1080Ti 2050/5800 32gb g.skill tridentZ RGB 3600@4133 
Hard DriveHard DriveHard DriveHard Drive
3x WD Caviar Black 4TB Samsung 960PRO NVMe 512gb Samsung 960EVO NVMe 512GB Sandisk Ultra II 1TB 
CoolingOSMonitorMonitor
1x corsair h115i, 1x h90 Win10 x64 pro ASUS ROG PG279Q Gsync @ 165hz 2x Qnix 2710 Evo II @ 120hz  
KeyboardPowerCaseMouse
CM Storm QuickFire XT corsair ax1200i corsair carbide 540 Roccat Pure Optical 
Mouse PadAudioOtherOther
Roccat Taito asus xonar DX 7.1 KS8000 65 Zoll 4k SUHD Samsung Tab Pro 8.4 
OtherOtherOther
HTC Vive PS4 Pro, Xbone S maxnomic classic office 
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post #20979 of 22515
Quote:
Originally Posted by deegzor View Post

Are you using adaptive voltages?

Yep
post #20980 of 22515
I feel like I'm taking crazy pills here.

Has nobody else noticed these things work with multiples of 7? It occurred to me while staring at a page of voltage sets I've written down how close many of my numbers were to divisibility by 7, so I went full DaVinci code and wrote a list of them out in ranges near my voltages.

7 x 256 = 1792, which is my exact stock VCCIN voltage in millivolts.
7 x 162 = 1134, which is my exact stock 39x core VID
7 x 172 = 1204, exact stock 39x cache VID
7 x 144 = 1008, stock IOD

Scaling VCCIN in 56mv chunks popped out a few I've previously seen islands of stability around like 2.044v and 1.736v. I randomly pulled 1.680v off the list and it turns out my CPU plays just fine with the correct low VCCIN.

Doing some low multi testing, I noticed that cstkl1 was spot on. My CPU runs 41x core stably in prime95 blend at its 39x VID, and testing in 14mv steps proved 42x stable 42mv later. Following the pattern matches previous experiments' required voltages with 43x 1218mv, 44x at 1260mv, and 45x at 1302mv. 46x would be 1344mv if linear scaling holds true, but considering it tends to break down around the 1.3v mark and mine scales poorly from 1.05v on, I'm probably right on the mark rooting around at 1.35-1.36v.
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