Setcpu on Epic - Epic 4G Q&A, Help & Troubleshooting

What is your take with set cpu on the epic?
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i think its not necessary right now unless you want it constantly on 1000GHz since there aren't any OC,UV Kernels on Froyo yet

Thanks! are those types of kernels something developers create or samsung and developers tweak?
Sent from my midNIGHT Epic

Samsung/sprint release the source code needed and then our developers make the kernels but samsung hasn't released froyo/source yet thats why there are no kernels available on 2.2 right now

setCPU is cool tho if you're on an eclair rom, and running an overclocked kernel.

Thank you for the insight.
Sent from my midNIGHT Epic

Much appreciated This answered my post. I have set CPU maxed at 1Ghz its alright, However 1.2 would be optimal for the set up I have now. I'll just keep my eyes peeled For a DK28 Kernel In the future.
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Related

Please help me locate an undervolt edify script flashable zip

I've searched everywhere for an undervolt zip compatible with CWM3 without any luck. Thank you
You might ask in the viper rom thread if they have one or could make one. Or just instal viper rom since it is under volted.
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....I was under the assumption we can't undervolt or overclock yet since there's no source code for froyo yet...
And I also thought cwm3 (and by association ext4) was only compatible with dk28
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squshy 7 said:
....I was under the assumption we can't undervolt or overclock yet since there's no source code for froyo yet...
And I also thought cwm3 (and by association ext4) was only compatible with dk28
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I was wondering the same.
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Yep thats right, there are no kernels for 2.2 yet, but if you want to undervolt for any 2.1 rom. There is a file that will give you outrageous battery life. I go 2 days with moderate to heavy use.
Here it is but its only for 2.1 ROMS. It is the Baked Snack kernel for Outrageous battery life and in my opinion, the best. It can overclock to 1.2 GHZ with the same voltage as 1.0 GHZ.....
Viperrom 4.0.x series says its undervolted and 3g speed govenor killed. I didn't bother to verify whether it was as I don't really care personally about undervolting. But yes, you would need dk28 if you decided to go that route.

How do I overclock my epic 4g?

I've seen people with my phone overclocked up to 1.3 ghz I would like to do the same. I am rooted running viper rom. Any help would be awesome thanks
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Epic_Patrick said:
I've seen people with my phone overclocked up to 1.3 ghz I would like to do the same. I am rooted running viper rom. Any help would be awesome thanks
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You need a over clock kernel. There imply available on 2.1 roms right now
Haterz gonna hate. Just keep hatin. I brush them haterz off. It ain't my fault my epic's e-penis is bigger then the evo's e-penis.
Lol. Evo epenis needs viagra. Nerds over at ppcgeeks banned me for proving evo suxs steve jobs nutsak.
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It's not possible to overclock with a DK-28 Modem, you have to be on 2.1 Eclair to overclock.
Can you explain to me how (and where) to find a kernel and install it. I know how to use Odin to get back to 2.1 and I can reroot it, no biggie. But I have no experience with installing new kernels. I'm kinda learning as I go... thanks for the help: )
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Epic_Patrick said:
Can you explain to me how (and where) to find a kernel and install it. I know how to use Odin to get back to 2.1 and I can reroot it, no biggie. But I have no experience with installing new kernels. I'm kinda learning as I go... thanks for the help: )
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Here's a OC kernel. Odin back to 2.1 (DI18), root and install the kernel in the provided thread.
http://forum.xda-developers.com/showthread.php?t=786988
done12many2 said:
Here's a OC kernel. Odin back to 2.1 (DI18), root and install the kernel in the provided thread.
http://forum.xda-developers.com/showthread.php?t=786988
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This is the kernel I was using prior to 2.2 flash. Worked great! Very fast and stable.
You can also try SyndicateRom with the Xtreme kernel. I enjoyed that before the froyo leaks started.
Yeah those days feel so long ago,I wish we had source for 2.2.1 alreay... Anyway I found Phoenix kernel to be the best,alot less bugs.That with any DI18 ROM was awesome.
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Regardless about how anyone around here feels about this gentleman, I would say for a 2.1 Rom your best bet would probably be Baked Snack (1.6). I won't post a link but all you have to do is google Baked Snack Epic4g and youll find it.
I went back and fourth to Froyo leaks a few different times as new ones were released, and I still always end up reverting back to this Rom, it just seems to be the snappiest 2.1 (or 2.2 for that matter) Rom available, It has a well working apps2sd, kernel options for best battery life, (IMHO) and you can overclock to either 1.2 or 1.3 ghz on it. Just my 2 cents. For me the only quasi-important feature I'm missing out on by not running Froyo is Flash, but TBH thats not that important to me. I'm never too far from a computer if I need it that bad.
is 2.1 with overclock kernel that much faster than 2.2.1 without overclock. I like my rooted 2.2.1. not really wanting to go backwards.
a slower chip running a newer OS or a faster chip running and older OS....ya 2.1 OC'ed will be fast.
I hate how everyone listed a different ROM, it's just so daunting now! It makes me afraid to switch from stock!
check this out, list of roms kernels etc/
http://forum.xda-developers.com/wiki/index.php?title=Samsung_Galaxy_S/SPH-D700

Kernel options?

Currently running Skyraider 1.0, and drellisdee's Sense kernel #21 limited to 1.5ghz, as it seems to be the only OC kernel I can find for a sense Rom.
Are there others that I haven't found? Looking for maybe a little less OC with the slot freqs/voltages a little closer together. Suggestions/ links to others appreciated.
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You can definitely put it lower than 1.5 GHz. You must not be doing something right. What app are using to oc?
You should also update to skyraider 1.3
Also this belongs in the Q&A section. Mods please move.
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Let me clarify. Sorry. Running the 1.3 Rom (stupid brain), and I'm the limiter of the OC on the kernel, using SetCPU. Looking for different kernel options that might give me more useful slots below 1.5ghz.
Not really a Q&A... Looking for general suggestions on different kernels to try.
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speedfreeq said:
Let me clarify. Sorry. Running the 1.3 Rom (stupid brain), and I'm the limiter of the OC on the kernel, using SetCPU. Looking for different kernel options that might give me more useful slots below 1.5ghz.
Not really a Q&A... Looking for general suggestions on different kernels to try.
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What do you man slots lower than 1.5?
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i'm assuming you mean something like 1000mhz, 800mhz, 768mhz, 600, etc?
as in less of a break between the freq once you go below 700?
I dont know of any sense kernels with that option, there's dres' kernels and i think corecore (spelling?) has a sense kernel on rootzwiki, but i havent tried it

Isc kernel

So im curious is there an overclockable kernel for ics that i can use with set cpu. All i see are stock kernels. Are we waiting for more development on kernels? On gb i could over clock to 1.7 which was awesome.
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XBMC4LIFE said:
So im curious is there an overclockable kernel for ics that i can use with set cpu. All i see are stock kernels. Are we waiting for more development on kernels? On gb i could over clock to 1.7 which was awesome.
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im taking a guess here, so someone correct me if im wrong, but i think everyone is waiting for the ics source to be released b4 they start makeing custom kernels.
newalker91 said:
Use the search function. It's already been posted that you can use Tegrak to overclock the stock kernel, even on ICS
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Doesnt work with cm9,miui, and apperently aokp, since im on aokp and it says kernal not available. Custom kernels would be awesome right now
To begin with we don't have the source. It's not as simple as splitting the zImage and typing in some numbers. Also, there's very little demand for OC'd kernels on this phone. Most people that OC do it to increase performance, reduce lag, play games, and a few other things. Basically they do it for a reason. The ones that do it just because or so they can show it off to their friends are a very small group. Since the majority don't feel overclocking is necessary on this phone there won't be too many OC'd kernels even when we get the source.

Why are there no more kernels with the option to over clock?

I know we all love to have the most battery life possible on s2, but has there has not really been a kernel that allows over clock. Not sure if the reason is because of lack of demand because of better battery life without it or that gingerbread and ics roms dont support it?
Last I remember Zedomax or something was the last kernel to offer oc, but it had issues with Lost back when the s2 first came out.
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As far as I know, the custom GB kernels have always allowed overclocking.
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Overclocking does not apply to ICS btw
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Also, ICS doesn't have source yet. Once source drops we will see alot more being done with kernels and ROMs.
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Ah Gotcha. Thanks for the info!
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We'll get over-clocking support for the ICS ROMs when we can get the ICS source. I'm actually thinking there is a way to do it without the source though at least on NTC devices. Let me go look for that link...

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