[Raspberry Pi General] -CALIBAN666-:
My guide to setting the Pi as easely(Overclocking)

Here is the guide for many settings incl.overclocking,with this guide(its from me and my friend)the pi runs at best,you can look others but not betters.my pi runs smoothely like a cat with this settings guide.but that what u see is not all,because you must tweak/clocking in very little and slow steps.

my pi settings in moment:

over_voltage=0

arm_freq=880

sdram_freq=500

core_freq=400

but its possible to run this(i have seen it):

over_voltage=4

arm_freq=1050

sdram_freq=500

gpu_freq=350

core_freq=400

disable_overscan=1

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so lets start:settings u can download at bottom,its docx file

The config.txt configuration file

The boot partition an SD card for the Raspberry Pi can be set via the config.txt various parameters of the device at startup. The file is disabled by default on all distributions available and can be plain text editor (like Wordpad or Word or not!) Are created and edited. Since the boot partition is FAT formatted, they can also see on his computer when the SD card is connected. In Pi started with Linux it is accessible as / boot.

Parameters in the config.txt line by line specified as key-value pair (key, value), along with an = sign. All that stands in a line after a # character is treated as a comment. If the Pi starts, reads the graphics processor on the file and sets the Geräteparamter accordingly, even before the operating system loads.

List of parameters and possible values

clock frequencies

arm_freq: clock frequency in MHz of ARM. Standard: 700

gpu_freq: Sets core_freq, h264_freq, isp_freq, v3d_freq to the same value. Standard: 250

core_freq: the GPU clock frequency in MHz. Standard: 250

h264_freq: clock frequency of the hardware video block in MHz. Standard: 250

isp_freq: clock frequency of the image sensor pipeline block in MHz. Standard: 250

v3d_freq: clock frequency of the 3D block in MHz. Standard: 250

sdram_freq: clock frequency of SDRAM main memory in MHz. Standard: 400

tensions

over_voltage: ARM-/GPU-core-tension-adjustment. [-16.8] Is [0.8 V, 1.4 V]. Default: 0 (1.2 V)

over_voltage_sdram: Sets over_voltage_sdram_c, over_voltage_sdram_i over_voltage_sdram_p together. Default: 0 (1.2 V)

over_voltage_sdram_c: SDRAM controller voltage adjustment. [-16.8] Is [0.8 V, 1.4 V]. Default: 0 (1.2 V)

over_voltage_sdram_i: SDRAM I / O voltage adjustment. [-16.8] Is [0.8 V, 1.4 V]. Default: 0 (1.2 V)

over_voltage_sdram_p: SDRAM PHY-voltage adjustment. [-16.8] Is [0.8 V, 1.4 V]. Default: 0 (1.2 V)

The GPU has its own internal way, power management, and does not switch off unwanted portions. It is therefore necessary to continue to operate to save power to intentionally slow. In addition, parts of the ARM and the RAM access depend on bus clock of the GPU. This would therefore also slower.

Notes on overclocking and operating with overvoltage

Who corrected the voltages up to lose its warranty. The chip has an internal signal-bit which is set only once and can not be deleted and is set in operation with increased voltage. Moreover, the operation at a higher supply voltage shortens the lifetime of the components! At default settings should also run the Pi at 800 MHz, and many also include 900 MHz.

By setting 6 (1.35 V) of the core over time was run at 1 GHz. In short tests and 1.15 GHz were achieved. The GPU has been operated in tests already running at 350 MHz. It also speeds up the whole system apart from graphics acceleration, as the ARM core goes with access to the L2 cache and the RAM on the GPU. Strictly speaking, the Broadcom chip is a graphics processor with flanged ARM CPU core.

Graphics output

sdtv_mode: Analogue TV mode (Composite). Default is 0 (NTSC)

SDTV_MODE_NTSC = 0, / ** Normal NTSC * /

SDTV_MODE_NTSC_J = 1, / ** Japanese version of NTSC * /

SDTV_MODE_PAL = 2, / ** Normal PAL * /

SDTV_MODE_PAL_M = 3, / ** Brazilian version of PAL - 525/60 instead of 625/50 * /

sdtv_aspect: The same aspect ratio. Default: 1 (4:3)

SDTV_ASPECT_4_3 = 1, /** 4:3 */

SDTV_ASPECT_14_9 = 2, /** 14:9 */

SDTV_ASPECT_16_9 = 3 /** 16:9 */

hdmi_mode: HDMI mode. Is negotiated by default to the terminal.

HDMI_CEA_VGA = 1

HDMI_CEA_480p60 = 2

HDMI_CEA_480p60H = 3

HDMI_CEA_720p60 = 4

HDMI_CEA_1080i60 = 5

HDMI_CEA_480i60 = 6

HDMI_CEA_480i60H = 7

HDMI_CEA_240p60 = 8

HDMI_CEA_240p60H = 9

HDMI_CEA_480i60_4x = 10

HDMI_CEA_480i60_4xH = 11

HDMI_CEA_240p60_4x = 12

HDMI_CEA_240p60_4xH = 13

HDMI_CEA_480p60_2x = 14

HDMI_CEA_480p60_2xH = 15

HDMI_CEA_1080p60 = 16

HDMI_CEA_576p50 = 17

HDMI_CEA_576p50H = 18

HDMI_CEA_720p50 = 19

HDMI_CEA_1080i50 = 20

HDMI_CEA_576i50 = 21

HDMI_CEA_576i50H = 22

HDMI_CEA_288p50 = 23

HDMI_CEA_288p50H = 24

HDMI_CEA_576i50_4x = 25

HDMI_CEA_576i50_4xH = 26

HDMI_CEA_288p50_4x = 27

HDMI_CEA_288p50_4xH = 28

HDMI_CEA_576p50_2x = 29

HDMI_CEA_576p50_2xH = 30

HDMI_CEA_1080p50 = 31

HDMI_CEA_1080p24 = 32

HDMI_CEA_1080p25 = 33

HDMI_CEA_1080p30 = 34

HDMI_CEA_480p60_4x = 35

HDMI_CEA_480p60_4xH = 36

HDMI_CEA_576p50_4x = 37

HDMI_CEA_576p50_4xH = 38

HDMI_CEA_1080i50_rb = 39

HDMI_CEA_1080i100 = 40

HDMI_CEA_720p100 = 41

HDMI_CEA_576p100 = 42

HDMI_CEA_576p100H = 43

HDMI_CEA_576i100 = 44

HDMI_CEA_576i100H = 45

HDMI_CEA_1080i120 = 46

HDMI_CEA_720p120 = 47

HDMI_CEA_480p120 = 48

HDMI_CEA_480p120H = 49

HDMI_CEA_480i120 = 50

HDMI_CEA_480i120H = 51

HDMI_CEA_576p200 = 52

HDMI_CEA_576p200H = 53

HDMI_CEA_576i200 = 54

HDMI_CEA_576i200H = 55

HDMI_CEA_480p240 = 56

HDMI_CEA_480p240H = 57

HDMI_CEA_480i240 = 58

HDMI_CEA_480i240H = 59

overscan_left: number of pixels that are left skipped.

overscan_right: Number of pixels to be skipped right.

overscan_top: number of pixels that are above skipped.

overscan_bottom: number of pixels that are below skipped.

disable_overscan: Should be activated (= 1) to turn off the overscan and thus not usable frame around the image. Default: 0

framebuffer_width: framebuffer width in pixels. Standard corresponding to the device.

framebuffer_height: framebuffer height in pixels. Stabdard corresponds to the device.

Other

TEST_MODE: Allows test image and sound during the boot process to diagnose production tests. Default: 0

disable_l2cache: Allows off ARM access to level-2 cache of the GPU. Requires fitting ending L2-enabled kernel. Default: 0

For Level-2 cache

The Video Core IV dual-core GPU, Broadcom has a 128 KB on quadruple associative cache. Typically involves the ARM not to this. The task of the cache so the GPU is to accelerate, according to their close he is and accordingly he's Architecktur more than usual by the ARM core is removed, so that this can only be little benefit from the cache. In operation at standard frequencies, the ARM read a date in the L2 cache twice as fast as SDRAM him. When a cache miss access to the date but is much slower than without L2 cache. Operates the parallel GPU intensive in their cache, this reduces the L2 cache hit rate of the ARM still further. For these reasons, access to the L2 for the ARM is disabled by default. But those who want more CPU power and no / little graphics power (headless operation eg servers, robots) is required for it to make sense of the L2 for the ARM it active (while using an appropriate kernel).

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When you share this on other sites,please give credits,it is hard work to make these guides. <-------CALIBAN666------GREETZ TO BASTEK----->

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WARNING YOU MAKE IT ON YOUR OWN RISK ITS NOT OFFICIAL GUIDE!!!!!