4770k overclocking headache

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Bolislet

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Apr 28, 2013
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Hello tomshardware,

I bought an ASUS Z87 PRO with the nice new 4770k. I added the Noctua NH-D14 (with an Antec Tricool fan to push). Overal I have 10 fans in my case, all running at 2000 rpm.

I went for this setup to achieve some very nice overclocking. But I am VERY disappointed. Here are my results using prime95 for 4 hours each time:

Speed:3,9 ghz
Volts: 1,10
Temp: idle=22c load=50c

Speed:4,3 ghz
Volts: 1,230
Temp: idle=26c load=60c

Speed:4,5 ghz
Volts: 1,357
Temp idle=30 load=85c

To reach 4,6 ghz I need a vcore of more then 1,43 volts! Prime95 will run but the temps go up to 100c with, from what i know, the best aircooling available.

I know that anything above 1,35 is not adviced with aircooling, but did i really just buy a horrible 4770k?

My batch#: L312B364

 
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Bolislet

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Apr 28, 2013
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No I didnt, but I was hoping for a batch that can atleast do 4,5ghz under 1,3 volts. I have seen very good 4770k's but I havent seen anyone needing 1,357 volts for 4,5 ghz and 1,45 for 4,6.

With my last pc I had a e8400 (I know I can't compare them), but it ran from a stock 3,0 ghz to a 4,4 ghz which ran 5 years straight. It's overclock was 1,4 ghz. 4770k can't do more then 1,0 ghz. Makes me sad
 
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johnvonmacz

johnvonmacz

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Apr 27, 2012
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At least your CPU can hit 4.5Ghz my 4770K is a total dud. The maximum it can hit is only 4.3Ghz but using a per core 43 43 42 41. If I sync all the cores to 43, It BSODs no matter what I do.
 
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Bolislet

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Apr 28, 2013
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At what voltage?
 
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Bolislet

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Apr 28, 2013
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Any people have some kind of tips for bios tweaking or somesort? I have to live with my terrible vcore but is there a way to increase performance/oc potential by changing other settings? Upping the voltage on the VRM's maybe?
 
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Intel God

Intel God

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Jun 25, 2013
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What is your cpu offset voltage set at? I needed 1.32v for 4.6Ghz. Its just the way it goes with these chips
 
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Bolislet

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Apr 28, 2013
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I have it on manual mode. Will offset help my oc? I have heard that offset increases voltage if needed.
 
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Intel God

Intel God

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Jun 25, 2013
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This is a different setting then your Vcore. The CPU offset voltage is the voltage that goes to your on die vrm's
 
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Bolislet

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Apr 28, 2013
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Ah ok, It was on auto (0,8 something). I changed it to 0,9 1,0 and 1,2. It made no difference. At 1,2 my temps went up by 1/2c. Still couldn't achieve 4,6 at less then 1,45 vcore
 
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Thomas van Opstal

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Jul 7, 2013
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I have one from the same Batch, I ran into a brick wall at 4.4Ghz. I need 1.325V to get that stable. 4.5Ghz i havn't reached yet, currently at 1.375V
 
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johnvonmacz

johnvonmacz

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Apr 27, 2012
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4.3Ghz per core OC the voltage is 1.235v
some say increase voltage but I'm scared that If I'll increase it to 1.3+v my CPU might die lol
 
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Intel God

Intel God

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Jun 25, 2013
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It wont. I've already ran 1.5v through mine and it hasnt died :lol:
 
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johnvonmacz

johnvonmacz

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Apr 27, 2012
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Cuz you delidded yours :D
 
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Intel God

Intel God

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Jun 25, 2013
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I ran 1.45v on stock tim :na:
 
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johnvonmacz

johnvonmacz

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Apr 27, 2012
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Woah then you got yourself a pretty good chip. Anyway, I gave your Overclocking Guide a try and it works! Not in 4.4Ghz but in 4.3Ghz with 1.3vcore what do you think?

Anyway, I'm gonna post some pics of my bios and could you please help me out on what settings to tweak? Thanks INTELGOD. Some settings are so tricky and their names are different in some boards lol
 
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Intel God

Intel God

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Jun 25, 2013
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I responded to your post in my guide post ;)
 
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RushNReady

RushNReady

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Dec 30, 2013
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This is exactly what i can get using asus 4 way tuning, on my mobo any thing about that it bios
 
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Decends

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Jul 3, 2016
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As long as you don't go past 1.3 volts you shouldn't decrease CPU life by much, its only after 1.3 volts that Haswell's life span takes a somewhat decent drop. At 1.35 is where the drop can be more severe i believe, but you don't EVER want to exceed 1.4 volts because that can seriously harm CPU lifespan.
 
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RushNReady

RushNReady

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Dec 30, 2013
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So what's the best way to start when overlooking a i7 4770k, I just use my mobo Asus 4 way overclock. I get 4.3 4.3 4.2 4.1, and it states it's at 4.3 over clock. Not had a problem with it since doing it recently but. In past it been a bit unstable. I just wish I didn't get the k version and saved myself 100 odd pounds lol. All this worry about over clocking.
 
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