sounds like the CPU is overheating and tehrefore thrttling it self.
not that case.
then how come it will be "normal" in "balance" mode
"when in "HP recommanded" (which is believed to be "balance") mode, the cpu has a clock speed 931 MHz (like half of 1.6 GHz, i didn't pay for this, right. and the first day i got the laptop, i used the same software to test the cpu and it returned with 1596 Mhz even in "power saver" mode)"
i thought there u are saying that even in balanced mode it is not "normal", no offense meant but your post isn't the clearest ever.....
What options do you have in the BIOS with regard to speed step, turbo boost and other CPU related settigns and power management settings?
oh, my bad, the cpu shuold be at least 1.6 GHz no matter which power option i choose.
when i say "normal", it just mean not laggy.
and there is not such setting in the BIOS regards to CPU. all options are unmodifiable
This "the cpu shuold be at least 1.6 GHz no matter which power option i choose." is not enitrely true, with speedstep enabled in BIOS then it dosen't matetr teh powe roption picked in the OS, i would expect teh cPU to clock down when not being used.
Still theres something not right with oyur system, i would suggest you contact the manufacturer of teh laptop
thanks for your comment. i just spoke to a Intel Agent, and he told me that my system is not function normally.
he said that a lowest clock speed for a Corei7-720 should be around 1.4 when the system is idle, but not that low as 931 MHz.
also,you are right, he said 75C (case temperature) is a little bit overheating. i got disappointed by the crap made by HP which allow it to be overheated.