In op you say about "CPU undervolt, bit in novathor setting i can undervolt only gpu....
So, CPU or GPU undervolting?
Which rom u r using and what is version of novathorsettings app u r using
This is latest version 1.5 try this
https://docs.google.com/file/d/0B2_vOo99DI_vU0xUMjQ1QXF4X28/edit?usp=docslist_api
Just paste app in root>app>change permission to 644
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