Overclocking 4670k?

nbkpsycho · 27 Jan 2016 at 17:17

My current setup:
Gigabyte Z97 SOC
I5 4670k ( stop gap, getting friends 4790k soon)
Kingston savage x 16gb 2400mhz DDR3
AIO Raijinek CPU Cooler (65c max temps on load)

I had it running on turbo on stock intel cooler and realbench benchmark was around 99k (3.8ghz) and i have it running at 4.2ghz and its giving me a lower result (System Score 86443). Any idea?

I get a windows 10 error and it says system will automatically restart when i try to go higher than 4.2Ghz at the same volts and im currently using 1.3v! Seems i have a bad clocker? Any help/advice would be much appreciated as i am new to this type of bios. (Just upgraded from 1366).

stulid · 27 Jan 2016 at 17:26

Sounds unstable at that voltage, dont be scared to try upto 1.35v

Set things like Phase control and loadline calibration to the max setting which I think was extreme on that board.

I think I had posted some BIOS settings with the same board somewhere to get a higher speed and all the things to adjust, I will see if I can find the post.

Bickaxe · 27 Jan 2016 at 17:28

Did you overclock via the BIOS or the Gigabyte app?

Missus' is 4.3ghz @ 1.24v so you may have a bad clocked.

stulid · 27 Jan 2016 at 17:30

https://forums.overclockers.co.uk/showpost.php?p=27354803&postcount=1915

nbkpsycho · 27 Jan 2016 at 17:32

Thanks, ill take a look.

nbkpsycho · 27 Jan 2016 at 19:22

No luck at all. Anything over 4.2 seems unstable and even at 4.2 im getting 85k on the realbench benchmark :confused:

. During a certain part of the benchmark cpuz and coretemp was showing the voltage as 1.377? even when majority of the time it was at 1.276v. I set the offset as 0.85 and cpu voltage as normal :confused:

Edit:
I lowered the voltage in bios and im now getting:

Realbench: System Score 110887
Cinebench: 630cb

Do these seem right for 4670k @ 4.2Ghz?

new boy · 27 Jan 2016 at 19:45

Try running your ram at 1600MHz untill you got your CPU clock nailed down, then bring it back up after.

My 4790k needs a bump in sa and vccsa/vccio to run 2400MHz ram stable.

nbkpsycho · 27 Jan 2016 at 20:05

Im more concerned about the voltage spikes that are happening when i run that realbench, its the only application it seems to happen with. But ill give that a go with the ram.

stulid · 27 Jan 2016 at 20:14

https://forums.overclockers.co.uk/showthread.php?t=18546142

If you are using cinebench version R15 you score looks about right for a 4.2Ghz chip.

Some guy is at 665 for a 4.6Ghz 4670K.

nbkpsycho · 27 Jan 2016 at 20:21

stulid said:
https://forums.overclockers.co.uk/showthread.php?t=18546142

If you are using cinebench version R15 you score looks about right for a 4.2Ghz chip.

Some guy is at 665 for a 4.6Ghz 4670K.

Thanks, I used your settings from your thread and made some small changes and it is stable at 4.2ghz. When i run it at max load it is showing in cpuz and core temp as 1.277v but on the open cl part of realbench it has little hissy fit and shows up as 1.377? Anything to worry about? cinebench does not make it spike in volts! Is there anything else i can try to squeeze as much as i can out of this chip? Does not seem to be the best clocker so far or i am doing something wrong.

Temps are never really abouve 65c max load.

stulid · 27 Jan 2016 at 20:58

What you set in BIOS is what it gets as far as voltage goes.

What BIOS is on the board?

nbkpsycho · 27 Jan 2016 at 21:03

F7 bios i believe.

stulid · 27 Jan 2016 at 21:12

So not that old, F9a is out at tweaktown for it.

setter · 27 Jan 2016 at 21:17

nbkpsycho said:
No luck at all. Anything over 4.2 seems unstable and even at 4.2 im getting 85k on the realbench benchmark. During a certain part of the benchmark cpuz and coretemp was showing the voltage as 1.377? even when majority of the time it was at 1.276v. I set the offset as 0.85 and cpu voltage as normal

Edit:
I lowered the voltage in bios and im now getting:

Realbench: System Score 110887
Cinebench: 630cb

Do these seem right for 4670k @ 4.2Ghz?

It's quite possible that during that certain part of the benchmark that it is using AVX instructions. If using adaptive or offset voltage this adds .1v on top of what you set in bios.

nbkpsycho · 27 Jan 2016 at 21:43

So should i lower it or is that ok above?

setter · 27 Jan 2016 at 21:47

Should be fine for benchmarks, i tend to use fixed voltage where extra isnt added on, but it means the cpu voltage doesnt drop down at idle.

marc2003 · 28 Jan 2016 at 07:21

setter said:
i tend to use fixed voltage where extra isnt added on, but it means the cpu voltage doesnt drop down at idle.

Yep, that is what I do as well. Until I had to RMA my mobo, my 4690K was doing 4.5GHz @ 1.24v which I thought was ok. I didn't touch any other voltages at all.

setter · 28 Jan 2016 at 13:20

marc2003 said:
Yep, that is what I do as well. Until I had to RMA my mobo, my 4690K was doing 4.5GHz @ 1.24v which I thought was ok. I didn't touch any other voltages at all.

Unlucky there, i had an asus maximus 6 formula Z87 which was used with 3 haswell i7's. All of which were ran above 1.25v with other voltages manually set. Thankfully it held up fine. Hopefully your RMA is sorted quickly.

marc2003 · 28 Jan 2016 at 17:16

My RMA was due to the top pci-e slot being DOA, nowt to do with voltages. I guess I could have worded that post better. Anyway, OcUK have done their bit - now I'm waiting on the bank. I didn't fancy a replacement so asked for a refund.