Author: Xaltar
Subject: H97 Anniversary with I7-4790k stuck at x42
Posted: 21 Oct 2016 at 5:14pm
That isn't how the turbo function works. More active cores = lower multiplier. You will only be able to get 4.4ghz when an application is using a single core, if 2 are active it will drop to 4.3 then 4.2 for 3 cores or more, at least that is the way it works with ASRock boards. It should, without ASRock's tweaks, be as follows:
Subject: H97 Anniversary with I7-4790k stuck at x42
Posted: 21 Oct 2016 at 5:14pm
That isn't how the turbo function works. More active cores = lower multiplier. You will only be able to get 4.4ghz when an application is using a single core, if 2 are active it will drop to 4.3 then 4.2 for 3 cores or more, at least that is the way it works with ASRock boards. It should, without ASRock's tweaks, be as follows:
1 core = 4.4
2 cores = 4.2
3 cores = 4.1
4 cores = 4.0
ASRock's tweaks to the UEFI allow you to run at 4.2 on 4 cores which is 200mhz higher than the CPU is designed to run at stock. In essence you should always refer to the base clock rather than the turbo clock. 4.0 with turbo up to 4.4. This means you are technically overclocked by 200mhz. I have seen a few non-Z boards that at one point allowed you to set the multi to 44 on a 4790k but this was put to an end by intel if memory serves, just like ASRock's non-Z overclocking on your board. A BIOS update (1.50) was released that removed the feature due to intel's wishes. All subsequent updates no longer permit overclocking.
So the only sanctioned way to achieve 4.4ghz across all cores is to upgrade to an Z97 board.
I hope this helps.
