Asrock Z77 Extreme4 Overclocking

The footprint of thermal paste is good?
You didn't applied to much thermal paste?
Also check the cooler to be good applied, check if the screws.

Xaltar, good example of hardware specs, and as you said we need information about the PC case such as the number and location of case fans.

About a Corsair H100, the water block/pump assembly has pre-applied thermal compound that is of high quality. AIO liquid coolers like this are completely sealed and cannot have liquid added, or the amount of liquid checked. From x110x's system information, it looks like the pump speed is normal, ~2000 RPM.

x110x, I have many questions since the system information you posted was only somewhat helpful. But I did see a few things that gave me some clues about what is happening.

First, 4.6GHz is a high over clock for an i7-3770K. Your VCore is not very high (good!) for that OC, but a H100 cooler is not as good as custom liquid cooling is, and will only cool a CPU a little better than the best air cooled CPU coolers, with the H100 fans at full speed.

The 90C and 85C CPU temperatures you get happens when you are stress testing the CPU? What do you use to test, Prime95, IBT, AIDA64?

It seems your CPU may have an idle temperature of 51C, is that correct? Do you have EIST, SpeedStep, or C States CPU power saving options enabled in the BIOS?

Regardless, you should check the mounting of the H100 on the CPU. The backplate of many Corsair AIO coolers like the H100 will fit correctly over the bottom of the CPU socket only one way. There is one edge on the middle of the backplate that is lower than the others and keeps it from touching two screws from the CPU socket. If the backplate is not in the right position, you won't get even pressure on the CPU from the H100's water block. That will cause higher CPU temperatures.

How is the H100 radiator mounted in your case, with the fans pulling air in from outside the case to cool the radiator, or pushing air out of the case through the radiator?

You asked for help with, "... right overclocking setting...", but the only CPU option setting in the BIOS we know about is your VCore of 1.26V.

I didn't see the OP mention 51C idle temps...is that 'Cputin' reading?..if so, that is alarming.

If you are using P95 small test to run temps, good, but make sure you are not using the newest version of this stress test. The newest version really cranks up the heat in an insane way that doesn't play nice with some of the Haswell(?) and later Intel chips, and you will get temp readings in that range. I have an i5 4690k with Corsair H100i GTX that was reading mid 90's on newest Prime 95 version at only 1.22v.

For comparison, the prev version P95 test hit 60C max at 1.23v on my system. FWIW, AIDA 64 readings may run a few degrees cooler yet, I think.

Edited by Illegalseagull - 01 Jun 2015 at 1:23pm