You have enabled PLL overvoltage? States clearly in both BIOS as well as Intel Performance Tuning Guide that changing this setting might cause wake-up issues from sleep.
Look at page 30 or in BIOS.
I have disabled PLL overvoltage (default BIOS settings) but have the same problem.
Well,same goes for me aswell.I setted my Bios to his default values,but another funny thing happened.After i discovered i wasn`t able to woke my pc from sleep,i ended up the sleep service.Now,after i reseted my Bios,i started the service again,but he won`t go to sleep anymore.....weird.
Also i have another problem....once in awhile,my pc restarts all of a sudden,and in Event viewer i found this "kernel power event id 41 task 63"....wich is new.
So,if any of you guys,have any ideea what i might do to solve this,please feel free to enlight me.Thank you.