4670k failing any overclock?

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Dingleberg

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Sep 21, 2012
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I've been trying to overclock my 4670k and any time I try, it may boot fine once, but the next boot hangs incredibly long. Even the bios is VERY slow, so it takes about 3 minutes just to reset to default.

I've tried following a few overclocking guides, but none help me in my situation. I don't feel it necessary to oc my ram, so I change the clock to say... 4ghz and an appropriate vcore with a medium power limit. Stock vcore is 1.05v and I'll relist all numbers at the bottom of my post. Any help is GREATLY appreciated.

i5 4670k
Gigabyte GA-Z87MX D3H
550w 80+ bronze xfx psu
7970 with no oc yet

Am I doing something wrong? It certainly feels like it.
 
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Titan
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May 18, 2007
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You did not list your HSF. If you are using the stock cooler, you are not going to go far OC-wise... the stock cooler is designed for stock settings and not much beyond that.

1.05V core is pretty low so if you are serious about overclocking, you might want to bump that to at least 1.15V. Tons of people overclocking Haswell need to go over 1.2V to get results worth writing about.
 
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Titan
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In any case, you may still need that +0.05-0.15 offset to start getting somewhere if you are not getting anywhere with stock voltages.

If you are still getting nowhere with +0.10, you either have some sort of problem with your motherboard or got very unlucky with the chip lottery.
 
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Dingleberg

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Are there any tutorials that you think would help a noob like myself? From what I've seen, there's only 4 things to change in the bios. 2 for clock speed, 1 for vcore, and 1 for power limit. Is that about right?
 
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Dingleberg

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Also, I've set my vcore to 1.25v and core clock at 4.0GHz just the other day and I had the same issue as normal. When I turn on my system after that, it takes a few minutes to boot with win8 on ssd. Could it be a bad chip, or just a bad oc?
 
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Titan
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A bad chip would most likely misbehave even at stock settings.

The extreme slowness could be due to the CPU overheating and throttling due to improper HSF mounting... 29C may look fine for idle but that tells you absolutely nothing about how well the heat transfer performs when you put an actual load on the CPU, which is the part that really matters. Instead of idling, you might want to try FurMark, SuperPi, Prime95, etc.
 
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Dingleberg

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aida64 max temp at stock is 52c. I found another tutorial to try with a more simplified approach at overclocking. I can say one thing, I had my ring bus too high. I'm running aida64 with 4.0GHz and I'm doing fine so far. max temp of 74c with a vcore of 1.25 (for a barrier to get my max core clock) so I'm gonna go from here. Max temp is only a spike btw, because I'm averaging at 64c right now.
 
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Dingleberg

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WOW that's the last time I use info from LINUS on something like this. I set my uncore to 3.3 since my board kept revving it up to same clock, which seems to have worked great. Anyways, I'm currently stressing my cpu at 4.4GHz 1.25v (baseline to test for decent max clock. jumped from 1.049 directly to this.) and I'm having an average temp of 61c.

Not sure about the temp being that low. I'm using aida64 built in temp monitor. Is that "accurate"?
How far do you think I can push it at this rate?
 
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Dingleberg

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Aaaaaand, I'm wrong. As soon as I restarted my pc, my games were lagging and any benchmark had very poor performance. 3dmark I can get a 7400 and now I can't even finish it.

4.5GHz
1.35vcore
1.92VIN
3.3GHz uncore

What am I doing wrong? Those are the only settings that I've touched.
 
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