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The Gigabyte Z87/Haswell Overclocking(OC) Guide - Page 276

post #2751 of 3251
Quote:
Originally Posted by Cyro999 View Post

You're using ~1.25vcore at load for 4.5ghz

with normal scaling, you probably need like 1.38 - 1.45 for 4.8. 5.0 isn't happening. It's a notch above average sure, but these things don't do 50x easily. Only the really exceptional chips will get there @1.4v, not one of the "bit above average" bunch

wow then seems difficult, maybe i get back to 4.4Ghz with stock volts, should be enough cpu power for my GTX 670.

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post #2752 of 3251
Quote:
Originally Posted by GoD7 View Post

wow then seems difficult, maybe i get back to 4.4Ghz with stock volts, should be enough cpu power for my GTX 670.

stock volts for me is ~1.06vcore bios wink.gif

can only do ~4.0 on that

4.5@1.245 bios with HT, though

No such thing as "enough" CPU power, there's quite a few games out there (mostly rts and mmo's, some large scale FPS) that will perform better with moar clock speed, even past 4.4 and with a weaker GPU
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post #2753 of 3251
Quote:
Originally Posted by Cyro999 View Post

stock volts for me is ~1.06vcore bios wink.gif

can only do ~4.0 on that

4.5@1.245 bios with HT, though

No such thing as "enough" CPU power, there's quite a few games out there (mostly rts and mmo's, some large scale FPS) that will perform better with moar clock speed, even past 4.4 and with a weaker GPU

hahaha that's too low, i ran 20 minutes Prime95 at 4.5Ghz with 1.2v but i had BSOD :C
post #2754 of 3251
Hey all,

So I am about to build my new machine and it would appear overclocking the i5 3670k has more variables to consider over my previous chip the i5 3570k. That was a cake walk for me.

My new gigabyte z87 sniper has easy tune as a utility. What's the risks of applying the medium or extreme presets through the utility? I have read somewhere that it pumps more volts than it really needs which could be a bad thing overtime but is this true?

I was hoping for 4.5 ghz using a h90 push/pull so I think it's doable.

Also if I did use the tool? Does it alter my ram which is 2400mhz 16gb kit?

Cheers
Apostles
post #2755 of 3251
Quote:
Originally Posted by The12Apostles View Post

Hey all,

So I am about to build my new machine and it would appear overclocking the i5 3670k has more variables to consider over my previous chip the i5 3570k. That was a cake walk for me.

My new gigabyte z87 sniper has easy tune as a utility. What's the risks of applying the medium or extreme presets through the utility? I have read somewhere that it pumps more volts than it really needs which could be a bad thing overtime but is this true?

I was hoping for 4.5 ghz using a h90 push/pull so I think it's doable.

Also if I did use the tool? Does it alter my ram which is 2400mhz 16gb kit?

Cheers
Apostles

It's very bad to use automatic OC. You should OC a CPU through the bios, even without any understanding of what you are doing, you can almost certainly get better results. If you can read a guide, you can get a lot better

You should set RAM manually, or enable XMP for it after CPU overclocking
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post #2756 of 3251
What is x264 you guys are referring too?
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post #2757 of 3251
Quote:
Originally Posted by KFume View Post

What is x264 you guys are referring too?

http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics/10980_30#post_21941059

x264 is pretty much "THE" video encoder right now
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post #2758 of 3251
I have tried two different i7-4770k with a Gigabyte G1.Sniper 5 (F9 bios) and have a hard time running Prime95 for over 15 minutes. I currently have 1.272v for 4.3 Ghz and that's the best I can get for stability unfortunately. I ordered two cpus from different vendors so I wouldn't get the same batch but got the same batch anyway (3404B341) and both cpu's are actually just about the same.

For 15 minutes Prime95 runs with either Blend or "Large In place FFTs" and keeps around 69 or 70C which is fine at 100% load. Then the temps invariably spike about 20C and stay there unless I stop the test. It's not just a momentary spike. Is this something caused by this particular test?

I have a Thermaltake Water 2.0 Extreme for cooling.

I'm using a multiplier of 43, vcore 1.272, auto for other voltages. I've set cpu vrin calibration, and cpu vrin current protection to extreme and PWM Phase Control to Exm Perf.
post #2759 of 3251
Quote:
Originally Posted by wysiwygbill View Post

I have tried two different i7-4770k with a Gigabyte G1.Sniper 5 (F9 bios) and have a hard time running Prime95 for over 15 minutes. I currently have 1.272v for 4.3 Ghz and that's the best I can get for stability unfortunately. I ordered two cpus from different vendors so I wouldn't get the same batch but got the same batch anyway (3404B341) and both cpu's are actually just about the same.

For 15 minutes Prime95 runs with either Blend or "Large In place FFTs" and keeps around 69 or 70C which is fine at 100% load. Then the temps invariably spike about 20C and stay there unless I stop the test. It's not just a momentary spike. Is this something caused by this particular test?

I have a Thermaltake Water 2.0 Extreme for cooling.

I'm using a multiplier of 43, vcore 1.272, auto for other voltages. I've set cpu vrin calibration, and cpu vrin current protection to extreme and PWM Phase Control to Exm Perf.

Probably just chaning fft size

You can use x264 or prime27.9 with custom set fft 1344-1344 if you want a cooler but still effective test
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post #2760 of 3251
Quote:
Originally Posted by Cyro999 View Post

Probably just chaning fft size

You can use x264 or prime27.9 with custom set fft 1344-1344 if you want a cooler but still effective test

prime 95 28.5 1344-1344 is also pretty cool and is good for uncovering instabilities, and exercises Haswell AVX2 and FMA3 instructions.
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