Have i reached a limit of my silicon?

[FilipStark11]

Ok so i OC my i7 4790k to 4.7 GHz and it runs really stable. I use Corsair H 105 for cooling and the temps when stress testing for 15 mins on AIDA 64 don't go over 65 C, and the voltage is 1.3V. I push it to 4.8 GHz and start stress testing, after 12 minutes it crashes, but the temperature never went over 70 C, and i don't mean the package i mean on every individual core it was max 70 C, and last time i checked thermal limit of haswell was 100 C. So i am curious if i have reached the overclocking limit of my CPU or is there something else that i have to change to make it run at higher clock speeds.

[Vegetable]

nice chip tbh. i had a 4790k that needed 1.3v for 4.6ghz and didnt even do 4.7ghz at all. Just give it more voltage u have a good cooler and just rule of thumb keep it below 1.35v

 

---EDIT---

Please keep in mind that very few 4790k's can actually do 4.8ghz without a DUMB amount of voltage and a custom loop. Haswell at 4.7ghz is fast enough for anything whats even the point. 

[RadiatingLight]

like @Vegetable said.

you need more voltage. anything is possible with more voltage.

bump up voltage to 1.35 or a teeny bit more if you have to, which will probably let you get 4.8 stable.

[cj09beira]

keep it under 1.4 and you will be fine, my i5 is running on 1.4 @ 4.7Ghz and needs 1.47 to reach 4.8

[FilipStark11]

I see thanks for the info, ill up the voltage to 1.35 V. BTW how do i even know when i have reached the limit of my silicon? I mean when does the temp stop being the bottleneck? And i know 4.7 is great, it's just that i like pushing it to the limit :D.

[Jurrunio]

20 minutes ago, FilipStark11 said:

I see thanks for the info, ill up the voltage to 1.35 V. BTW how do i even know when i have reached the limit of my silicon? I mean when does the temp stop being the bottleneck? And i know 4.7 is great, it's just that i like pushing it to the limit :D.

When you need to pump a LOT of extra voltage, like 0.7v, just to get an extra 100MHz, it's on the limit.