is kaby lake supposed to run this hot?



Your temps are completely fine. I usually start to increase fan curves in BIOS when it reaches about 80C and will back off on the OC if it gets close to 90C.

However, Prime95 is no longer a widely accepted way of testing your CPU for OC stability. The System Stability Test in AIDA64 Extreme is quickly becoming its replacement.
 
Thanks yes i know that anything under 80c should be good for 24/7 usage but considering my low voltage and supposedly awesome AIO this kinda seems too high IMO.

Is AIDA pushing the CPU more than prime95? if so my temps are definitely bad
 


1) It's possible that your CPU is not getting clean power. What is the make and model of your motherboard and power supply?

2) Prime95 actually pushes the cores harder than AIDA64 does, but does not stress the other parts of the CPU the way that AIDA64 does. AIDA64 gives you the option to stress system memory (RAM) which loads up the memory controller within the CPU and allows you to test the FPUs together or separate from the cores. Stressing system memory, FPUs, Cache and CPU will give the schedulers and decoders a real run for their money and may expose an instability that Prime95 wouldn't have.

Simply put, Prime95 will get the CPU 2-3C higher than AIDA64, but AIDA64 will expose more possible instabilities in your OC.
 


Thanks for answering, i have the Asus PRIME Z270-A mobo with 8+2+2 phases and then Thermaltake Toughpower XT 775W PSU so i think im good on the power end.
 


I agree that the VRMs on that board are pretty heavy duty, but they're paired with those anemic little aluminum heatsinks. It was good that you got an AiO that features a fan for airflow around the socket or you may have run into issues.

You seem to have had bad luck in the silicon lottery. Your CPU overclocks well, but not great.
 


We all know that Kaby Lake is the result of a complacent Intel, but I didn't realize until I Google searched it that they're so proud of the efficiency they've achieved that they thought it was a good idea to use lower quality TIM.

http://wccftech.com/intel-core-i7-7700k-delid-performance-tests/
 


yeah its such a shame they cheap out like that, if i did a delid i would probably have no problems pushing this chip to over 5ghz since it runs "stable" for my usage at 4.9 @ 1.26v and maximum safe voltage is 1.4v according to most sources
 


If you decide to delid, note that Kaby Lake is much more sensitive to small scratches than previous CPUs were. This is because Intel decided to use a thinner material to house the die and surrounding components. As I said above, Kaby Lake is the result of a complacent Intel thanks to them not having proper competition in the CPUs market for almost a decade now.
 


This is why I recommend Skylake. A small overclock gets right past Kaby Lake performance since the two have the same IPC (hence why PCPartPicker calls Kaby Lake Skylake-S). Whichever runs at a higher overclock wins. There is no improvement in core performance from Skylake to Kaby Lake.

Yet Intel claimed a 15% performance boost. In what? Onboard graphics?
 


yeah not much difference from skylake to kabylake that is true indeed, i went with kaby just because its the newest and i got 100€ off CPU+MOBO+RAM combo.
 
It's funny because Ryzen isn't out yet and we haven't even seen professional reviews or benchmarks yet, but Intel is already panicking. They're releasing the i5 7640K and the i7 7740K which are just overclocked 7600K and 7700K's with a higher factory TDP.

Basically, they're pulling an AMD back when they released the FX 9590 which was a factory overclocked 8350 with a 220W TDP that wrecked all but the most expensive motherboards. To be fair, it did hit 5GHz out of the factory which was very impressive for 2011.
 
Yeah they are definitely expecting ryzen to be good, according to leaks ryzen beats the 6950x in some cases but then again loses to a 7700k in some. also IPC seems to be about 10% lower than kaby/sky so it remains to see how well they OC.
 


You're right. From observing the market, I've noticed that the downfall of FX had three major causes:
1) AMD banked on software that just didn't happen. This lead to this happening: Salazar Studio: How Many Cores Do AMD FX Processors *Actually* Have?
2) Their reuse of the AM3 socket with the AM3+ socket and then BIOS updates that allowed AM3 boards to run FX lead to people with older weaker boards to believe that an upgrade to FX was in their best interest.
3) All of the FX CPUs were unlocked but only a few dozen boards could actually handle overclocking them without either damaging the VRMs or just failing outright.

By starting a new platform on a new socket and using SMT comparable to Intel's HyperThreading, AMD is doing their best to make sure that these issues don't happen upon Ryzen's release.