Download and Install SiyahKernel S3 Kernel For Rooted Galaxy S3 ( Sound Boosting, OverClock, Cpu Governor Optimizations)

Despite being such an open OS, all Android phones in the market today come with a few limitations. These are actually safety mechanisms put in place for more security and to ensure that users don’t mess up their devices. If you’ve ever wondered how to do that yourself – or wondered why people would bother – you’re in luck. You can root your Android in just a few minutes (Step by step Tutorial on How To Root Galaxy S3). After rooting your device, you have full access to the entire system and can run special types of apps that require root permissions. So, you can gain full control over your system and can tweak it to your liking.
The Galaxy S3 – which has a quad-core Exynos chip internationally and a dual-core Qualcomm processor in North America – provides the most impressive Android experience available in the market. Samsung promises “powerful quad core performance” and reveals that the Exynos 4 Quad doubles the performance of its dual-core predecessor, “while consuming 20% less power”.  As well as improved power and battery consumption, the Exynos 4 Quad can deliver console-like 3D gaming, which falls in nicely with the rumours suggesting that the Galaxy S3 will sport a swanky HD display. Samsung also claim that the Exynos 4 Quad will allow devices to take better quality pictures and provide full HD video playback, supporting “almost any type of video format.” By default, we know theta the factory settings were over safe and  phone was underclocked  to make it runs slower than it actually should it should.
Performance Test Before Overclock Galaxy S3 (1400MHz 200min)

Performance Test After  Overclock Galaxy S3- 1704MHz 200min

Here is the another popular kernel for Galaxy S3, SiyahKernel. Compare to ninphetamin3 kernel, SiyahKernel not only allow you to overclock, but also improve the sound quality (best for headset), support adjustable charging speeds for AC and USB, Cpu governor optimizations, Automatic EFS Backupand More. Here is the step by step on how to flash SiyahKernel S3 into Galaxy S3 via Odin:
Step 1: Download nSiyahKernel S3 kernel– Siyah-s3-v1.3.7beta.tar
Step 2:Go Setting >Developers option to enable USB Debuging on your Galaxy S3 and then Power off your Galaxy S3.
Step 3: Press your Galaxy volume up + Power Button + Home Button to enter Downloading Mode. (What is Downloading Mode?)
Step 4: Open Odin (download Link) on PC, then connect your S3 to PC via USB connect USB.
Step 5: Make sure Odin Detect your Galaxy S3 (How to know).
Step 6:Press Odin PDA, then select the downloaded Siyah s3 kernel– Siyah-s3-v1.3.7beta.tar(Note: This is .Tar file)


Step 7:Now click Odin Start button to Flash the firmware into your galaxy S3.

Step 8: Odin will show you “PASS” once success Siyah s3 kernel into Galaxy S3.  Your Phone will reboot once the firmware complete flash into your S3.
Step 9: Then you can refer here on how to overclock Galaxy S3 for better performance.
Siyah s3 kernel  other features:

    Supports both Samsung and CM9/AOSP/AOKP with a single kernel image
CPU over/underclock: 100-1800MHz 18-steps
CPU underclock (600mV-1500mV). vdd_levels and UV_mV interfaces.
Insecure adb even though we have ro.secure=1
optional smooth_scaling for those who wants to limit fast scaling of governors (such as ondemand)
triangle-away app support
added hotplug governor and modified it to support quad-core
Auto-root. You can also remove root via ExTweaks app and install it without rebooting your phone again. Auto-root can be disabled as well.
You can completely disable android logger using ExTweaks app
Adjustable charging speeds for AC and USB
Cpu governor optimizations
governor-aware stand-hotplug for old conventional governors
Available CPU Governors: Pegasusq (default), Hotplug
CIFS as module
Available I/O schedulers: CFQ(default), noop, Deadline, SIO, V(R)
init.d support
ARM topology support (SCHED_MC)
default idle mode is IDLE+LPA (highly recommended). however you can change the default to AFTR+LPA using ExTweaks.
Automatic EFS Backup
Samsung proprietary ExFat modules are loaded
Lots of I/O tweaks and filesystem optimizations via some parts of thunderbolt scripts.
NTFS automounting for USB sticks. When you plug in an NTFS formatted USB flash it will be automatically mounted to /mnt/ntfs folder.
Almost everything is configurable such as scheduler features, hotplug thresholds, GPU voltages, arm topology modes… and they are configurable via simple and free ExTweaks App from Google Play
mDNIe negative effect toggle with home button (press it four times). the purpose of this feature is to inverse the colors especially when the background is white or bright. making the background darker will make your battery last longer.
sound boosting for great headphone experience (partial-port of wm8994 based implementation from project-voodoo since our wm1811 is mostly register compatible and almost the same) (This is in v1.3 and still beta. Bugs are being fixed. If you experience any audio related problems use latest stable v1.2.6)
and some more not worth mentioning as separate items such as disabling mali state tracking and disabling some unnecessary debugging etc…