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Haswell Overclocking Guide [With Statistics] - Page 360

post #3591 of 19539
Quote:
Originally Posted by imaghost03214 View Post

You can damage components internally if it's not getting the proper instructions and how to execute said instructions.

I'm sorry, but this makes no sense at all. Offering out of order instructions, or whatever it is that Prime95 may or may not be doing, is not going to damage the processor. It may cause damage because of high heat caused by the processor load, but no instruction set or program is going to damage internal components on its own.

Intel's own Extreme Tuning Utility uses Prime95 internally, so if it was so bad why would Intel be using it in their own program?
post #3592 of 19539
For folks who have ASUS mobos. Have you guys noticed that enabling "auto" cache ratio (aka uncore)....the mobo will set it to 38x or 39x? 38x if you have the 4670k and 39x if you have the 4770k. And this is exactly what the turbo frequency of the respective stock CPU.
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post #3593 of 19539
My 4770K does 4.5 with 1.25 vcore, 4.6 needs 1.31 be stable, anything beyond 4.6 is a no go. The difference in temperatures during stress test is mid 70s at 4.5 and high 80s at 4.6, cpu delided.

Is the extra 100mhz worth the big jump in vcore and temps? I know I will never reach those kind of temps at 4.6 with real world applications, but this wil be a 24/7 overclock. How safe is 1.31 vcore for Haswell?
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post #3594 of 19539
Thread Starter 

I've already listed safe voltages in the guide.

1.31 is fine.

 

I wish stress utilities find a way to record how long until bsod. Like, manually create txt file. Change the contents of it every minute, so if txt reads "50" then I know after 50 minutes, CPU went kuput.


Edited by Darkwizzie - 10/7/13 at 12:12am
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post #3595 of 19539
Quote:
Originally Posted by pacho View Post

My 4770K does 4.5 with 1.25 vcore, 4.6 needs 1.31 be stable, anything beyond 4.6 is a no go. The difference in temperatures during stress test is mid 70s at 4.5 and high 80s at 4.6, cpu delided.

Is the extra 100mhz worth the big jump in vcore and temps? I know I will never reach those kind of temps at 4.6 with real world applications, but this wil be a 24/7 overclock. How safe is 1.31 vcore for Haswell?

You'll never notice the performance difference between 4.5 and 4.6, but whether it is worth it is really up to you and what you want out of the chip. But 1.31V isn't a lot of volts.
Quote:
Originally Posted by Darkwizzie View Post

I've already listed safe voltages in the guide.
1.31 is fine.

I wish stress utilities find a way to record how long until bsod. Like, manually create txt file. Change the contents of it every minute, so if txt reads "50" then I know after 50 minutes, CPU went kuput.

Does the post-crash Windows message have a time stamp on it? Or maybe the memory dump file? Presumably if you knew what time it crashed you cold work backwards.

Edit: Yep, the minidump file (located at \Windows\Minidump is time stamped - just check the "date modified" field.
Edited by Forceman - 10/7/13 at 12:36am
post #3596 of 19539
Thread Starter 
Quote:
Originally Posted by Forceman View Post


You'll never notice the performance difference between 4.5 and 4.6, but whether it is worth it is really up to you and what you want out of the chip. But 1.31V isn't a lot of volts.
Does the post-crash Windows message have a time stamp on it? Or maybe the memory dump file? Presumably if you knew what time it crashed you cold work backwards.

Edit: Yep, the minidump file (located at \Windows\Minidump is time stamped - just check the "date modified" field.

 

Found it. Now somebody make x264 loop. Jeezus.

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Celapaleis (2013)
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveHard DriveCooling
Samsung 950 Pro 512gb (Undelwalt) WD Red 2tb (Pack Yak II) Seagate Expansion Drive 5tb (Phoenix Down II) 3x560mm HardwareLabs Nemesis GTX 
CoolingCoolingCoolingCooling
XPSC Raystorm Pro Watercool Heatkiller 1080ti Full Cover Waterblock EK XTOP Revo Dual D5 (Serial, PWM, v4) EK ZMT (1/2 - 3/4 ID OD) 
CoolingCoolingCoolingCooling
14xEK ACF (Compression Fittings) EK x4 250 (v2) Distilled Water + PT Nuke (Copper Sulphate) 24x140mm Silent Wings 3 
OSMonitorKeyboardPower
Windows 10 Pro 64bit Catleap 27 Inch 2560x1440 IPS 60hz Display Coolermaster Storm Trigger (Brown Switches) EVGA P2 1000w 
CaseMouseMouse PadAudio
Corsair Air 540 Logitech G Pro Tek Syndicate "Raze the World" Desk Mat O2 + Odac by Mayflower Electronics (Rev A) 
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Sennheiser HD 800 2xKrk Rokit 6 G2 Blue Yeti (Grey) Rode PSA-1 Arm 
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Aquaero 6 LT + Aluminum Heatsink 
CPUMotherboardGraphicsRAM
i5 6600k Delid @ 4.848/4.848 Asus z170 Hero MSI GTX 980ti @ 1499/4082 1.25v/134% Power 2 x 8gb Gskills Ripjaws V 3131 16-16-16-32 
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Samsung Pro Series 840 256gb (Celapaleis) 1 TB Samsung Drive (Pack Yak) Samsung Pro Series 850 256gb (Celapaleis Reprise) Phoenix Down (External Backup) 
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post #3597 of 19539
Anybody using an ASUS ROG board? I'm trying to figure out why I'm getting random spikes to 1.28 volts when I set 1.26 in the BIOS... Normally stays around 1.264, but for some reason even if put it to 1.24-5 It still boots up as 1.264
post #3598 of 19539
Quote:
Originally Posted by jameyscott View Post

Anybody using an ASUS ROG board? I'm trying to figure out why I'm getting random spikes to 1.28 volts when I set 1.26 in the BIOS... Normally stays around 1.264, but for some reason even if put it to 1.24-5 It still boots up as 1.264

They all go up about 0.02 volts under load. It's seems to be something built-in to the FIVR, and happens with all the motherboards. There also appears to be voltage "steps", so making a small change in the entered voltage may not make a change in the voltage you see in software (it's unclear whether that's a monitoring issue or actually the way the chip does the voltage).
post #3599 of 19539
I wonder if we'll ever find the 'holy grail' for Haswell,seems that Haswell almost changes what it requires for stability randomly.Been doing lots of reading on various sites and it seems,even CPU's which have passed a stringent set of stability tests can randomly be unstable all of a sudden.

When I can/next weekend i think i'm gonna redo my 4.8ghz,not going to run full-on stress tests like Prime95 or Aida64 etc as thier seems no point,just need to get cinebench stable and just get gaming as i'll have my GPU by then.This time i'll think I'll find a rough stability and add a few mV's to it.Cant be bothered to heat my CPU and spend time on the 12hr tests anymore.

Is anyone in this thread using a Asrock Z87E-ITX?
Would love to know if its holding you back or not.
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post #3600 of 19539
Quote:
Originally Posted by Forceman View Post

They all go up about 0.02 volts under load. It's seems to be something built-in to the FIVR, and happens with all the motherboards. There also appears to be voltage "steps", so making a small change in the entered voltage may not make a change in the voltage you see in software (it's unclear whether that's a monitoring issue or actually the way the chip does the voltage).

I was just curious because my G45 didn't have huge voltage spikes like that. It might be a monitoring issue, and I don't mind as long as I don't BSOD and my temps are in check.
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