4790k overclocking.

P4Clock

P4Clock

P4Clock

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I just picked up a delidded 4790k I will be fitting to tonight and after I test the cpu I want to see what the thing can do.

What would be a run of the mill overclock? And what would be classed as a good overclock?

I have a good air cooler what would be max sort of vcore I would be looking to run.
 
I'd start off at 4.4ghz at 1.2v and run asus real bench. Also turn speed step off as well. Max voltage is 1.3v
 
had some fun.. turns out after 1hour of thinking i have a duf board or chip that i cant overclock with XMP enabled.

with XMP i cant get passed 4.3Ghz on all cores.
with XMP off and Vcore fixed @ 1.25v, ring offset +0.050 and ring fixed at 4.3Ghz:
4.9Ghz boots but fails all tests.
4.8Ghz boots and pass's test but BSOD in games.
4.7Ghz looks to be very stable with no crashes as yet.

tomorrow i will go upto 1.35v on the core and see with i can get stable.
but any advice of with may help with getting the ram stable would be super, ram is running at 1333Mhz and loose timings, i can set timings to those in the xmp profile but i cant get speed passed 1333mhz
 
Hey P4Clock. I'm also attempting to OC my 4690k on a gigabyte board. Gigabyte's EasyTune app somehow managed 4.7ghz and appeared stable but I have no idea how as I can't get to 4.6ghz without it being too hot or getting a reboot on a stress test.

I've only altered the Vcore though and not very experienced with what settings I should change. What are you stress testing with?
 
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I'm running my 4790k @ 4.5ghz with a negative offset. Have you thought about gaming to test the overclock instead of stressing?
 
I'm interested in this thread as just bought a 4790K. Got a cheapish cooler (Saphire) and monitored temps whilst running 3D Mark Firestrike at stock. Cores hitting around 62 already so assume need something a little beefier to get a decent oc like an AIO?
 
PapaLazaru said:
I'm interested in this thread as just bought a 4790K. Got a cheapish cooler (Saphire) and monitored temps whilst running 3D Mark Firestrike at stock. Cores hitting around 62 already so assume need something a little beefier to get a decent oc like an AIO?
Click to expand...

62c is pretty good to be honest. Is it overclocked already? Mine sits at about 62-72 depending on what I'm doing and never had any issues. I am running a Phanteks tc14pe though.
 
snips86x said:
62c is pretty good to be honest. Is it overclocked already? Mine sits at about 62-72 depending on what I'm doing and never had any issues. I am running a Phanteks tc14pe though.
Click to expand...

Just at stock at the moment. Was quite surprised with those temps to be honest, maybe the cooler is better than it's price would suggest and got some Thermal Grizzly Kryonaut slapped on it as well.
 
PapaLazaru said:
Just at stock at the moment. Was quite surprised with those temps to be honest, maybe the cooler is better than it's price would suggest and got some Thermal Grizzly Kryonaut slapped on it as well.
Click to expand...

ahh ok - I wouldn't rate AIOs personally but they're not all bad. I would suggest a decent air cooler like the K2 or Phanteks.
 
right now i am stable at 4.8Ghz @ 1.325v how ever temps are now hitting 81c in stress testing
i test with asus real bench and also get the boy gaming for a few hours
 
David_VI said:
Hey P4Clock. I'm also attempting to OC my 4690k on a gigabyte board. Gigabyte's EasyTune app somehow managed 4.7ghz and appeared stable but I have no idea how as I can't get to 4.6ghz without it being too hot or getting a reboot on a stress test.

I've only altered the Vcore though and not very experienced with what settings I should change. What are you stress testing with?
Click to expand...

my setting was
ring voltage to offset +0.050
CPU voltage Vcore to fixed 1.300v
set ring ratio fixed to 40 (default for my cpu)
XMP off
Speed step to off
then go to core setting and change turbo ratio of all core to the same to get you OC so for 4.4Ghz change all to 44
 
I think you have found the 24/7 limits of that chip if it proves long term stable. volts and temps are fine, but I personally wouldn't want either much higher.

My experience of using realbench with my 4790k is that I can pass hours of it, yet GTA V crashes and requires a few more notches of vcore

4.8GHz at that vcore is a decent result. Probably average for the later batches, good for the early batches.
 
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new boy said:
My experience of using realbench with my 4790k is that I can pass hours of it, yet GTA V crashes and requires a few more notches of vcore
Click to expand...

Same with 4770K here.

@PapaLazaru temps might be the LLC that's a bit too high, especially if you have an Asus board. If not it's just the cooler or stock Vcore too high.
 
PapaLazaru said:
I'm interested in this thread as just bought a 4790K. Got a cheapish cooler (Saphire) and monitored temps whilst running 3D Mark Firestrike at stock. Cores hitting around 62 already so assume need something a little beefier to get a decent oc like an AIO?
Click to expand...

You don't need an AIO. A Noctua NH-D15s kept my 4790K easily cool enough with a 4.8Ghz clock on it. It is a big lump though and I changed to an AIO for my beauty build.
I run with 1.33v. 4.8 GHz was totally stable for me until I enabled the XMP on my RAM, which meant I had to notch down to 4.7. I have a Devil's Canyon.
 
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