Undervolting cpu - Galaxy S II Q&A, Help & Troubleshooting

Undervolting cpu means less performance? I Undervolted with a option from my kernel. Seems to get same quadrant score. Shoild i do other tests? Is it ok? I Undervolted just 25mv. I want good performance and good battery. Already removed a bunch of após with alot of wake up and wavelock. It Seems its much better
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Undervolting results are fairly different because it depends on the usage.. if your.phone get lags or random shut downs or random reboots, then your phone cannot handle the UV.. but as what you have described, your phone seems fine
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saywhatt said:
Undervolting results are fairly different because it depends on the usage.. if your.phone get lags or random shut downs or random reboots, then your phone cannot handle the UV.. but as what you have described, your phone seems fine
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Thanks
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Undervolting doesn't effect performance, underclocking does.
However as already pointed out if you undervolt too much your phone can freeze or reboot.
25mv undervolting is fine
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Obagleyfreer said:
Undervolting doesn't effect performance, underclocking does.
However as already pointed out if you undervolt too much your phone can freeze or reboot.
25mv undervolting is fine
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Tested with - 50mv seems not to have problem done a bunch of stress tests. Seems Nice
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Gone back to - 25 loool spoke to soon got 2 freezes
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Undervolting can be hit and miss. You just have to spend time tweaking and testing and find the best values for each frequency
I use an app called voltage control it's a great tool.
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I have been uv many times on different kernels. Still can't say if that really save more juice. You know, in theory it does. But there are plenty of other things that do. Starting from less brightness and being carefull what apps you install... I recommend GSam Battery Monitor to watch them.

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How about gpu? Is bad to undervolt? Thanks again
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jgcaap said:
How about gpu? Is bad to undervolt? Thanks again
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Ehhh. Don't Undervolt GPU. You will get constant freezes especially when you are playing games.
However Undervolting CPU by 25-50mv is fine.

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Kernel configuration was:
200 Mhz - 950mV
300 Mhz - 975mV
400 Mhz - 975mV
500 Mhz - 975mV
600 Mhz - 1000mV
700 Mhz - 1025mV
800 Mhz - 1075mV
900 Mhz - 1125mV
1000 Mhz - 1200mV
1100 Mhz - 1250mV
1200 Mhz - 1300mV
Made a Manual configuration:
200 Mhz - 875mV
300 Mhz - 900mV
400 Mhz - 925mV
500 Mhz - 925mV
600 Mhz - 950mV
700 Mhz - 975mV
800 Mhz - 1025mV
900 Mhz - 1075mV
1000 Mhz - 1175mV
1100 Mhz - 1200mV
1200 Mhz - 1250mV
Seemed to be stable this way. On 1000 Mhz i couldnt undervolt -50 for some reason, gave imediate freeze. I've made 30 secound stress test on each frequency. Seems to be working fine

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jgcaap said:
Kernel configuration was:
200 Mhz - 950mV
300 Mhz - 975mV
400 Mhz - 975mV
500 Mhz - 975mV
600 Mhz - 1000mV
700 Mhz - 1025mV
800 Mhz - 1075mV
900 Mhz - 1125mV
1000 Mhz - 1200mV
1100 Mhz - 1250mV
1200 Mhz - 1300mV
Made a Manual configuration:
200 Mhz - 875mV
300 Mhz - 900mV
400 Mhz - 925mV
500 Mhz - 925mV
600 Mhz - 950mV
700 Mhz - 975mV
800 Mhz - 1025mV
900 Mhz - 1075mV
1000 Mhz - 1175mV
1100 Mhz - 1200mV
1200 Mhz - 1250mV
Seemed to be stable this way. On 1000 Mhz i couldnt undervolt -50 for some reason, gave imediate freeze. I've made 30 secound stress test on each frequency. Seems to be working fine
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Good post, very best working on 5.1.1 dity unicorns