Can i consider this OC stable? ( i7 4770k / Asus VI hero )

[Stavari]

My CPU is an Intel i7 4770k and my motherboard is an ASUS MAXIMUS VI HERO.

Since i don't really know how to manually OC through the BIOS i used the ASUS Suite III software that came with the mobo. The OC is at 4.2GHZ with 1.2V.

To check for stability i run the IntelBurnTest 2 times without any problem.
1) It was 10 times at Very High stress level. Results: http://postimg.org/image/u29jx14jt/full/
2) It was 10 times at Maximum stress level. Results: http://postimg.org/image/j4wxjrvqz/full/

Can i condiser this OC stable? If not, what should i do?
Should i go for a 4.4GHZ or 4.6GHZ? (These are the other two options at Asus Suite)

(The Frequency/Volts are adaptable... That's why they are that low at the screenshots)

 

[Nuclear101]

I recommend running Prim95 for 24-36 hours to make sure its rock-solid, but you can do with 6-12 hours of "burning".

 

[lawson7086]

No i don't believe your stable with only 10 runs of IBT....also be very careful using IBT in adaptive mode letting your your motherboard sort out the voltages cos they can put some stupidly high voltages in and your cpu can heat up in seconds especially using IBT and it could damage it, so i don't think its a good idea to go over 4.2ghz with the motherboards over clocking profiles...mine does 4.2ghz fine at 1.180v vcore try that and if you want my advice leave it there and don't try to get much more out of it, haswell is nightmare to overclock...try reading my post http://www.tomshardware.co.uk/answers/id-1881677/haswell-stable.html

 

[No2rdame]

I second the suggestion of letting Prime95 run for at least 24 hours to verify.

 

[Stavari]

As it turned out it wasn't stable... Blue screen after some gaming... I think i'm gonna stick with the boost clock @3.9 until i really want more power out of it... 😉

 

[lawson7086]

As it turned out it wasn't stable... Blue screen after some gaming... I think i'm gonna stick with the boost clock @3.9 until i really want more power out of it... 😉

Thats why i said it would not be stable...prime has shown only mainly to burn and fry Haswell to death over how many hours people decide to fry it for thinking they will be stable only to crash 5 mins into a game..
Try Aida64 stress test untick all but FPU give that a few hours then game as much as you can...Haswell is not the same as any other cpu when it comes to over clocking...also i suggest you take a look at theses 2 threads

http://www.simforums.com/forums/haswell-48ghz-on-air-building-a-haswell-system_topic46180.html

http://www.overclock.net/t/1411077/haswell-overclocking-thread-with-statistics