Here are the init.d scripts that I have been using for Siyah. Please note that 95% of the scripts were done by Pikachu's thunderbolt scripts and I have modified then to my liking. Thanks to Pikachu for the hard work he has put in for the developement of our devices. For those that will use these scripts please use them with caution! I am not responsible for any damage done to your phone! You are free to use these as you wish, adjust them to your liking. The s70darkyzipalign, s98cfs, s98systemtweak should be universal for all setups and you do not need to adjust these init.d scripts. The one you need to be aware of is the s98bolt1 and screenstate_scaling script. The s98bolt1 script has cpu freq. steps set at max 1504 min 100. Scaling @ max 1304 min 200. The voltages for these steps are pretty aggressive and may not work for your device so please PLEASE adjust them accordingly. This script will also set ondemand/sio as default. You can replace those as you wish. GPU is set for 40, 133, 267mhz. (Andreilux's settings, Thanks Andrei) Sched_mc and AFTR have been enabled for some extra power saving.
Screenstate_scaling have been modified to set as Ondemand as wake governer and Powersave as sleep governer. You can adjust these as well. The scripts are pretty self explantory and you can adjust these values using root explorer and using the menu in root explorer to "open in text editor". Or you can you wordpad or notepad++ on your pc and adjust them. Save the scripts to your phone. Using root explorer copy the init.d scripts to /etc/init.d. Paste in this directory and set permissions as rwx,rwx,rwx and reboot.
I am sure I missed some things as I'm kind of in a hurry. Please pm me if you have any questions or need help. I have used this setup for quite some time now without any problems. Battery life has been amazing without sacrificing performance. Oh please do not use VC to save boot settings as these will clash. Everything in the init.d scripts will do the same as VC as long as you adjust them accordingly. Good luck and happy flashing/modding!
P.S. After downloading the file remove the .txt extension in the files before using. Thanks!
Here is the link to the Originator and Creator of these awesome scripts. Thanks Pikachu!
S4 Golden Eye Rom