Random freezing after OC

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BlackWings

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Aug 23, 2013
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Specs :
CPU : Intel Core i5-6600K
COOLER : SilentiumPC Fera 3 HE1224
MOBO : GIGABYTE Z170-Gaming K3
RAM : Kingston 8 GB DDR4 2133 MHz CL14 HyperX Fury Black Series
GPU : 1060gtx 6gb
PSU : Corsair Vengeance Series 550M

Hi. I tried to overclock my cpu but my pc always freeze after few hours of running. I currently use 4.4ghz@1.330V which should be more than enough voltage. Even in CPUID HWMonitor vcore is max 1.300V. Temperatures don't go over 70 during prime95 test. Everything seems fine so I have no idea where the problem is. I also tried 4.0ghz, 4.2ghz and also different voltages/auto setting. No matter what I do pc freeze. I have to hold power button and start pc again. Never BSOD. Could it have something to do with bios? :(

I appreciate every answer.
 
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CapsLuke

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got the same issue but with i5-3570K ASUS mobo P8Z77-V and Cooler Artic Freezer 13. even at 3.6 ghz (stock is 3.4) at 1.25V i get freezes after one hour testing with prime95 blend test. if u find a fix let me know!
 
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weberdarren97

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Aug 10, 2015
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Your motherboard has okay VRMs... I could see it maybe struggling with an i7 at 4.6GHz+, but it shouldn't have any problems powering an i5. I think we can rule out motherboard VRMs as a potential cause.

I've never heard of a Corsair Vengeance Series power supply. What is the model? (RM750x, AX1200i, etc)
 
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weberdarren97

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Aug 10, 2015
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I stumbled across your post but it was deleted before I could answer it. You have a 600W Cooler Master power supply, yes? If so, it's junk. The only power supplies made by Cooler Master that are reliable are the V series which don't come in a 600W variant.
 
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BlackWings

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Aug 23, 2013
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Yes! I found Kernel-Power errors. Amount of them is exactly the amount of freezes which happened to me. IMAGE But my PSU should be okay. It is this one LINK . What should I do? How do I fix it?
 
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weberdarren97

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Aug 10, 2015
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I've been in these sorts of situations before. It's frustrating, I know. I will try to guide you through what to do in advanced menus. Please don't get antsy and start changing things other than what I tell you to change.

First, let's try 1.35V. It's possible that you lost the silicon lottery and ended up with a chip that's not that great at overclocking. After all, Intel never guaranteed that you could overclock the chip successfully. The K in the name just means you're free to try without voiding warranty.

I forgot to include this, here it is as an edit: Your power supply is great. I didn't know Corsair had a Vengeance lineup. It's not in the Tier List but Johnny Guru gave it a 9.2 so I can't say it's a bad model. Good voltage regulation, very little ripples, voltage does not drop at high load, able to output slightly more than its advertised wattage. I highly doubt the PSU is your problem.
 
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BlackWings

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Aug 23, 2013
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Yeah this PSU is unknown for most people. Only one shop in Slovakia is selling it and I even had to wait for it for 2 weeks.

It's kinda hard to test it because it takes few hours to freeze. Should i run test like prime95 for hour or so? Or should I just use computer and wait for it?

Is there any possibility that updating BIOS could resolve this problem?

 
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weberdarren97

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Aug 10, 2015
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If BIOS was corrupt, the problem would have started the moment you turned the computer on for the first time. Since the problem didn't start until you started overclocking, BIOS is not the issue.

Since you're using all high quality hardware, the only possibility left is that it doesn't like your settings.

Always stress the system when testing OC settings. Don't just use it normally, push it as hard as it will go. This means Prime95 until it either crashes or runs stable for 24h without issue.

You could try going into BIOS and loading optimized defaults, then starting over with your OC settings.

In doing so, please reply with a list of every BIOS setting you change while overclocking. I would like to see the values they were at before you changed them and also what you changed them too. It's best to have a piece of paper and writing utensil handy so you can write down what you're doing, while you're doing it.
 
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CapsLuke

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Jan 7, 2017
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Ok, the strange fact is that the very first time i tried to overclock (offset voltage +0.005v multiplier from 34 to 36), i got an error post saying S.M.A.R.T status bad. Backup and replace. After a disk scan it turned out some sectors of my hdd were broken and it had to be replaced. This could explain why i could always perform one-hour tests in full load and get never more than 80 C temp, so my oc was actually stable. The only thing i can't explain is that the very first attempt could have lead to s.m.a.r.t.... what i am sure of is that my hdd has more than 3 years, maybe more than 4 and recently i had to defrag i more than usually, and became slower so it can perfectly be an hdd issue. The question still remains though: why right after the very first OC attempt? Coincidence?
 
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weberdarren97

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Aug 10, 2015
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Because your power supply is a potato. In attempting to adapt to the extra power draw from the CPU when you applied OC settings, it has damaged your hard drive. Please replace your power supply with a higher quality model before expecting system behavior to improve.

When you get a SMART error, back up immediately. Don't shut the system down before you back up. If you shut it down, the hard drive might not be able to get the internal disks back up to speed again. You didn't specifically say whether you shut down or not... I'm just putting this out there as a general piece of advice.

You're only running a single graphics card, right? If so, the EVGA SuperNOVA G2 650 should serve you well.
 
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BlackWings

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Aug 23, 2013
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I have set default settings then I only changed CPU Vcore from default (1.185V) to 1.350V and multiplayer from auto to 44. Freeze again occurred. Everything else is auto like it was before. In CPUID HWMonitor max Vcore I recorded was 1.298V. It never crossed 1.300V value and most of the times it even stays under 1.280. I doubt that CPU Vcore is not enough. Something else must be wrong. My BIOS looks like in this video LINK .

EDIT : Is it possible that HDD could cause these freezes? I use Samsung Evo 850(system) and another 2TB HDD for data. I don't remember when freezes occured before but this time I was loading map in CS GO and it crushed. Another time I exited game and then freeze occured. I am not sure if there is pattern but it's just idea.
 
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CapsLuke

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actually i have a Cooler Master RS-600-ACAB-M2 which i think is more than enough to run my system pretty well. i have an rx480 8gb sapphire nitro+, i5-3570K and 16GBram ddr3 @1333mhz, so i think it is not a problem to perform this slight oc without damaging anything, also because leaving settings on default (as a consequence voltage AUTO) with stock speeds it uses 1.3V for the cpu, and for a stable oc i used 1.25 volts which is even less than usual voltage, and it's a couple of years that i'm having it.
thanks for your advice though, i need an upgrade.
 
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weberdarren97

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Aug 10, 2015
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It's a potato. I recommend shutting down and unplugging this system until you replace the power supply. This will prevent your current power supply from further damaging your system.

To be honest, I'd be more comfortable trying to use an actual potato as a power supply than one of those old CM units.

Why manufacturers like Cooler Master are still carrying power supplies with fake wattages is a mystery to us. We know that this is a very low-end power supply, but this doesn’t give the manufacturer the right to lie. This unit should be labeled as a 450 W unit and sold for half of its price. Being labeled as a 600 W product and sold for USD 70, it is a complete rip-off.

If you pull more than 450 W from this product, it will offer real risk to your computer, plus it provides poor efficiency.
Click to expand...

Read more at Hardware Secrets review of your PSU.

i have an rx480 8gb sapphire nitro+, i5-3570K and 16GBram ddr3 @1333mhz, so i think it is not a problem to perform this slight oc without damaging anything, also because leaving settings on default (as a consequence voltage AUTO) with stock speeds it uses 1.3V for the cpu, and for a stable oc i used 1.25 volts which is even less than usual voltage, and it's a couple of years that i'm having it.
thanks for your advice though, i need an upgrade.
Click to expand...

Those will easily overload your current power supply. Unstable power leads to an unstable system.
 
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weberdarren97

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Aug 10, 2015
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@BlackWings don't let my conversation with CapsLuke give you the impression that I'm only helping him/her and no longer caring about your issues. Since you both kind of took this thread, I'm offering assistance to both of you. I'll do my best to not get your conversations confused with each other.
 
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BlackWings

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Aug 23, 2013
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Hi, I just wanted to tell you that updating BIOS helped. I guess it's because there are different default settings. Also in HWMonitor there are common voltages up to 1.34 and my settings are 4.4ghz@1.330V like before. Before voltages in HWMonitor couldn't go more than 1.300V for some reason. Maybe there was some voltage limitation settings which caused freezing. I don't know but I run my pc last few days and no problem occured.
 
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