I ran multibeast again gollowed your power management guide. Selected patched powermanagement driver. Deleted nullcpupowermanagenent and selected ssdt for sandybridge from multibeast. Selected smbios for sandybridge. Rebooted and it showed battery stats but the about mac hangs to welcome screen. Previously this issue was not there. And wen i secondly rebooted the battery stats were not there.
Oh my god im confused ! Mine os not haswell im sure. Not sandy ! Then is it ivy ?
Yours is not Sandy, not Ivy, not Haswell. Yours is older than that. Read the guide carefully.
Yours is Arrandale. Note: http://ark.intel.com/products/52952/Intel-Core-i5-480M-Processor-3M-Cache-2_66-GHz
I deleted null CPU . installed appleintelpowermanagement using chameleon wizard enabled c states and p states. The laptop booted fine. And to check CPU speed step I installed Intel CPU monitor kext, the problem began after this reboot . I was getting kernel panic so I booted the installer deleted the intelcpumonitor kext. But still I can't boot getting kernel panics for power management related kexts.
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Is speedstep the next step which i should look after ?