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Haswell Overclocking Guide [With Statistics] - Page 141

post #1401 of 19539
Quote:
Originally Posted by JellzRoc View Post

Tested it out. My system for some reason is stable at 42 and 1.27 but to get to 43 even if i bump the voltage up to 1.3 i'm still unable get it stable. I try to run a benchmark and my screen gets all squiggly and my computer reboots. Why the sudden cutoff at 43?

Make sure you have the uncore set at something lower - once you hit the uncore limit you are going to have real trouble increasing the clock speed if it is still at 1:1.
post #1402 of 19539
Quote:
Originally Posted by combatant3219 View Post

If you type in a value and then hit "esc" while your cursor or what ever is still on vcore it will revert to the previously entered value.

You're not doing that are you?

You would need to move your cursor off vcore and then hit escape or exit.

My MSI MPower has no problem going over 1.3V if I tell it too but it does change the text to red when I do this.

I never use my mouse in BIOS except to press save and exit. And No. I don't press escape...
post #1403 of 19539
Quote:
Originally Posted by t0tum View Post

Have you tried lowering vcore? There are low vcore clockers out there. I cant get mine 4.5 stable at 1.2-1.25, but i can @ 1.113v.
My chip, posted on another board: http://valid.canardpc.com/2882992

mine is like yours...im running 4.77 ghz with 1.255 V on the core. Its been stable with handbrake x 6 hours. The moment my cpu hits 1.3 or greater vcore it seems to just hard lock up
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4770K 4.7 GHZ @ 1.255 V Asus Maximus Extreme VI R9 290 QUADFIRE (1167/1350 @ +87mV) Mushkin 16 GB 2200MHZ 
Hard DriveCoolingOSMonitor
Samsung Evo 850 500 GB OS Drive/Samsung Evo 850... Watercooling blocks: XSPC Raystorm + 4 EK Aceta... Windows 7 Pro Benq XL2730z EYEFINITY (7680x1440) 
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post #1404 of 19539
Ok. New info.

Intel XTU doesn't use AVX. So even if you are stable after 24hrs of XTU might quickly crash in Prime95 Blend which supports AVX. I'm running Prime 95 26.6 just to confirm and no crash yet after 4hrs. Would crash within minutes with 27.9. Basically my CPU is not AVX stable at 44x @ 1.285V (1.296V actually). Sad!

So I'm gonna simply run 26.6 for a bit longer and set the Vcore to adaptive mode and forget about testing AVX testers. For AVX loads, right now H.264 should be enough I guess.

Now, I have to find what is causing my non-BSOD reboots. When it happened, I was using manual Vcore. Maybe Adaptive mode would fix it.

I seriously doubt people need to put VCCIN at above 1.8V unless the max Vcore is above 1.4V.
post #1405 of 19539
Quote:
Originally Posted by nitroxyl View Post

I never use my mouse in BIOS except to press save and exit. And No. I don't press escape...

It applies whether your using keyboard or mouse.

I can't find anything on Z87 G41, but the Z77 G41 did have locked vcore at 1.3 so it's entirely possible that has carried over to the Z87 model since it's a lower end board.
post #1406 of 19539
Quote:
Originally Posted by mojobear View Post

mine is like yours...im running 4.77 ghz with 1.255 V on the core. Its been stable with handbrake x 6 hours. The moment my cpu hits 1.3 or greater vcore it seems to just hard lock up
Are you using adaptive Vcore?
What is the Input Voltage at? Keep it at max Vcore + 0.4V. (Max means the voltage spikes if using Adaptive mode)
post #1407 of 19539
Quote:
Originally Posted by Anusha View Post

Are you using adaptive Vcore?
What is the Input Voltage at? Keep it at max Vcore + 0.4V. (Max means the voltage spikes if using Adaptive mode)

im doing manual, with vccin @ 1.95 LLC at minimum so I get 1.9 at load...i find this more stable than running LLC at max.
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Hard DriveCoolingOSMonitor
Samsung Evo 850 500 GB OS Drive/Samsung Evo 850... Watercooling blocks: XSPC Raystorm + 4 EK Aceta... Windows 7 Pro Benq XL2730z EYEFINITY (7680x1440) 
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Razor Ultimate Steath Edition EVGA 1600W G2 Xigmatek Elysium Logitech G502 
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Corsair SP2500 + Sennheiser 558 + Asus Xonar DX... 
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Gaming Rig
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CPUMotherboardGraphicsRAM
4770K 4.7 GHZ @ 1.255 V Asus Maximus Extreme VI R9 290 QUADFIRE (1167/1350 @ +87mV) Mushkin 16 GB 2200MHZ 
Hard DriveCoolingOSMonitor
Samsung Evo 850 500 GB OS Drive/Samsung Evo 850... Watercooling blocks: XSPC Raystorm + 4 EK Aceta... Windows 7 Pro Benq XL2730z EYEFINITY (7680x1440) 
KeyboardPowerCaseMouse
Razor Ultimate Steath Edition EVGA 1600W G2 Xigmatek Elysium Logitech G502 
Audio
Corsair SP2500 + Sennheiser 558 + Asus Xonar DX... 
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post #1408 of 19539
I think I'm going to stay at 4.3 at 1.329 volts. Its not worth it for me to toast my chip to get 44 or 45
post #1409 of 19539
Quote:
Originally Posted by JellzRoc View Post

I think I'm going to stay at 4.3 at 1.329 volts. Its not worth it for me to toast my chip to get 44 or 45

The lottery was very unfair to you.
post #1410 of 19539
Quote:
Originally Posted by Anusha View Post

I seriously doubt people need to put VCCIN at above 1.8V unless the max Vcore is above 1.4V.

I'm now using the OPs chess method just to see what kind of temps I get.

I'm trying for x45 Multi. When I tried 1.31v and VCCIO @ auto (~1.8v) it would fall over in around 3mins. When I raised VCCIO to 1.93v it ran 30mins. I then tried vcore @ 1.32v and VCCIO again at auto, fell over in 10mins. I've got LLC @ auto so the VCCIO is rising a 0.04v when pushed .. it does help at least.

I'm also using adaptive mode now so I'm not exactly 100% sure what my volts are, CPU-Z and/or Realtemp show 1.32v as above but then HWINFO would show 1.345v.

BTW: want to make it clear that at these volts there is no way to run Prime, IBT, XTU or whatever.
Edited by error-id10t - 8/29/13 at 9:57pm
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Koolance RP-452X2 Reservoir Koolance PMP-450 12V Variable Speed Pump Windows 10 Pro x64 benq XL2411Z 
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