1st time overclocking - 4790k / Gigabyte Z97 UD5H-BK

Mike1983

Mike1983

Mike1983

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Hello all

I put together a rig a while back with the long term intention to learn how to overclock at a later date. That date has now come.

My spec is as listed below

CPU - 4790k
COOLER - Phanteks PH-TC14PE with IC Diamond 7-Carat TIM
MOBO - Gigabyte Z97X-UD5H-BK Black Edition (updated to latest BIOS)
RAM - TeamGroup Vulcan GOLD 16GB (2x8GB) 2133MHz, CAS 11-11-11-31
OS - Windows 8.1 ran from an 850 Pro SSD

With the CPU running stock (shown as 4390MHz) at idle, AIDA64 is reporting average core temps of around 26deg (min 24, max 40) over a 10 minute monitoring period)

After running a stress test over 6mins (CPU, FPU, cache and system memory), AIDA64 is reporting the stats in the screenshot below (max core temps in the high 60's)

Please could you advise if this looks to be a stable platform to begin my tweaking? Also, I was intending to follow the guide linked here

http://www.overclock.net/t/1490835/the-gigabyte-z97x-overclocking-guide

Anyone got any better suggestions / areas of information?

Thank you

Mike

 
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Also going to keep an eye on this thread, just installed a 4790K and a Gigbyte SOC.

That guide looks perfect for me though, will have a look at that now.

Thanks Mike
 
So it looks like I can get a stable 4.7GHz o/c as per the screenshot below. Attempting 4.8GHz results in instability.

Looking at the temps and reported core voltage below, do you think my setup has any more grunt left to go or would 4.7 appear to be the limit? I understand 1.3V core voltage would be the maximum advisable daily use limit. In the BIOs I have it set to about 1.275 but I note AIDA64 is reporting it just under 1.3V.

Thank you

 
Managed to get a stable (5mins on AIDA64) run at @ 4.8GHz however this needed a VCore setting in the BIOS of 1.335V (which I saw on one of Stulid's screenshots in the 4790k owners thread).

AIDA64 reports core voltage of 1.356V and temps getting a little toasty.

Tried 4.9GHz at this VCore and it was unstable.

So please can I ask the following

1) Am I doing this right?
2) What are the recommended voltage and temp limits for this chip?
3) What would your next steps be?

I went straight from BIOS settings of 4.7GHz at 1.275V Vcore to 4.8GHz at 1.335V.

I was thinking of keep dropping the 1.335V VCore at 4.8GHz until I find the lowest stable voltage as I'm guessing the current volts / temps are too high to indicate that 4.9GHz is feasible???

Thank you

 
Ive not been able to get 4.8Ghz either :( Can do 4.7Ghz at 1.32v and 4.775Ghz at 1.35v but even at 1.4v 4.8 isn't stable for me.

Voltages might be going higher than your specified voltage if you've set LLC to high
 
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